[Engine] rename cls && add cls && vad android demo (#3188)

* [Engine] rename cls to AudioClassification
* [Engine] add android && vad demo

runtime/engine/CMakeLists.txt

@@ -12,7 +12,7 @@ if(WITH_ASR)
 endif()
 
 if(WITH_CLS)
-    add_subdirectory(cls)
+    add_subdirectory(audio_classification)
 endif()
 
 if(WITH_VAD)

runtime/engine/cls/nnet/panns_interface.cc → runtime/engine/audio_classification/nnet/panns_interface.cc

@@ -12,9 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "cls/nnet/panns_interface.h"
+#include "audio_classification/nnet/panns_interface.h"
 
-#include "cls/nnet/panns_nnet.h"
+#include "audio_classification/nnet/panns_nnet.h"
 #include "common/base/config.h"
 
 namespace ppspeech {

runtime/engine/cls/nnet/panns_nnet.cc → runtime/engine/audio_classification/nnet/panns_nnet.cc

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "cls/nnet/panns_nnet.h"
+#include "audio_classification/nnet/panns_nnet.h"
 #ifdef WITH_PROFILING
 #include "kaldi/base/timer.h"
 #endif

runtime/engine/cls/nnet/panns_nnet_main.cc → runtime/engine/audio_classification/nnet/panns_nnet_main.cc

@@ -17,7 +17,7 @@
 
 #include "gflags/gflags.h"
 #include "glog/logging.h"
-#include "cls/nnet/panns_interface.h"
+#include "audio_classification/nnet/panns_interface.h"
 
 DEFINE_string(conf_path, "", "config path");
 DEFINE_string(scp_path, "", "wav scp path");

runtime/examples/audio_classification/README.md

+# audio classification
+
+This directory provieds audio classification on CPU
+
+## conf
+config is the input of engine
+
+    [CONF]
+    wav_normal=true
+    wav_normal_type=linear
+    wav_norm_mul_factor=1.0
+    model_path=./inference.onnx
+    param_path=
+    dict_path=./label_list
+    num_cpu_thread=1
+    samp_freq=32000
+    frame_length_ms=32
+    frame_shift_ms=10
+    num_bins=64
+    low_freq=50
+    high_freq=14000
+    dither=0.0
+## label_list
+model output label
+
+    Dog
+    Rooster
+    Pig
+    Cow
+    Frog
+    Cat
+    Hen
+    Insects (flying)
+    Sheep
+    Crow
+    Rain
+    Sea waves
+    Crackling fire
+    .....
+## scp && test.wav
+scp is the input of engine and each line in scp is wav
+## execute
+../../build/Linux/x86_64/engine/audio_classification/nnet/panns_nnet_main --conf_path=./conf --scp_path=./scp --topk=1
+usage: panns_nnet_main conf scp topk
+output such as:
+
+    wav_normal = true
+    wav_normal_type = linear
+    wav_norm_mul_factor = 1.0
+    model_path = ./inference.onnx
+    param_path = 
+    dict_path = ./label_list
+    num_cpu_thread = 1
+    samp_freq = 32000
+    frame_length_ms = 32
+    frame_shift_ms = 10
+    num_bins = 64
+    low_freq = 50
+    high_freq = 14000
+    dither = 0.0
+    [INFO] fastdeploy/runtime/runtime.cc(293)::CreateOrtBackend     Runtime initialized with Backend::ORT in Device::CPU.
+    --- Init FastDeploy Runitme Done! 
+    --- Model:  ./inference.onnx
+    test.wav{"Clock alarm":"16.5309"}
+## android demo
+### install
+#### copy lib & interface
+cd ../../
+sh build_android.sh
+cp build/Android/arm64-v8a-api-21/cls-android-out/*.so examples/audio_classification/android_demo/app/src/main/cpp/jniLibs/arm64-v8a/
+cp build/Android/arm64-v8a-api-21/cls-android-out/panns_interface.h examples/audio_classification/android_demo/app/src/main/cpp/
+includes/
+
+#### set path
+push resource into android phone
+
+1. change resource path in conf to gloabal path, such as:
+
+    [CONF]
+    wav_normal=true
+    wav_normal_type=linear
+    wav_norm_mul_factor=1.0
+    model_path=/data/local/tmp/inference.onnx
+    param_path=
+    dict_path=/data/local/tmp/label_list
+    num_cpu_thread=1
+    samp_freq=32000
+    frame_length_ms=32
+    frame_shift_ms=10
+    num_bins=64
+    low_freq=50
+    high_freq=14000
+    dither=0.0
+2. adb push conf label_list scp test.wav /data/local/tmp/
+3. set reource path in android demo(android_demo/app/src/main/cpp/native-lib.cpp) to actual path, such as:
+
+std::string conf_path = "/data/local/tmp/conf";
+std::string wav_path = "/data/local/tmp/test.wav";
+
+4. excecute android_demo in android studio

runtime/examples/audio_classification/android_demo/.gitignore

+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

runtime/examples/audio_classification/android_demo/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

runtime/examples/audio_classification/android_demo/.idea/codeStyles/Project.xml

+<component name="ProjectCodeStyleConfiguration">
+  <code_scheme name="Project" version="173">
+    <JetCodeStyleSettings>
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </JetCodeStyleSettings>
+    <codeStyleSettings language="XML">
+      <option name="FORCE_REARRANGE_MODE" value="1" />
+      <indentOptions>
+        <option name="CONTINUATION_INDENT_SIZE" value="4" />
+      </indentOptions>
+      <arrangement>
+        <rules>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:android</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>xmlns:.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:id</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*:name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>name</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>style</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>^$</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>http://schemas.android.com/apk/res/android</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>ANDROID_ATTRIBUTE_ORDER</order>
+            </rule>
+          </section>
+          <section>
+            <rule>
+              <match>
+                <AND>
+                  <NAME>.*</NAME>
+                  <XML_ATTRIBUTE />
+                  <XML_NAMESPACE>.*</XML_NAMESPACE>
+                </AND>
+              </match>
+              <order>BY_NAME</order>
+            </rule>
+          </section>
+        </rules>
+      </arrangement>
+    </codeStyleSettings>
+    <codeStyleSettings language="kotlin">
+      <option name="CODE_STYLE_DEFAULTS" value="KOTLIN_OFFICIAL" />
+    </codeStyleSettings>
+  </code_scheme>
+</component>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/.idea/codeStyles/codeStyleConfig.xml

+<component name="ProjectCodeStyleConfiguration">
+  <state>
+    <option name="USE_PER_PROJECT_SETTINGS" value="true" />
+  </state>
+</component>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/.idea/compiler.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/.idea/gradle.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/.gitignore

+/build
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/build.gradle

+plugins {
+    id 'com.android.application'
+    id 'org.jetbrains.kotlin.android'
+}
+
+android {
+    namespace 'com.baidu.paddlespeech.cls'
+    compileSdk 32
+
+    defaultConfig {
+        applicationId "com.baidu.paddlespeech.cls"
+        minSdk 28
+        targetSdk 32
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        externalNativeBuild {
+            cmake {
+                cppFlags ''
+            }
+        }
+        // 设置ndk编译的cpu架构
+        ndk {
+            abiFilters 'arm64-v8a'
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+    kotlinOptions {
+        jvmTarget = '1.8'
+    }
+    externalNativeBuild {
+        cmake {
+            path file('src/main/cpp/CMakeLists.txt')
+            version '3.22.1'
+        }
+    }
+    //我们将外部so库放在jniLibs文件夹下，因此要将它设置为jniLibs使工程在打包的时候能将它包含进去，否则app运行时会报无法找到so库的错误。
+    sourceSets {
+        main {
+            jniLibs.srcDirs = ['src/main/cpp/jniLibs']
+            resources { srcDirs = ['src/main/cpp/resources'] }
+        }
+    }
+}
+
+dependencies {
+
+    //noinspection GradleCompatible
+    implementation 'com.android.support:appcompat-v7:28.0.0'
+    implementation 'com.android.support.constraint:constraint-layout:2.0.4'
+    testImplementation 'junit:junit:4.13.2'
+    androidTestImplementation 'com.android.support.test:runner:1.0.2'
+    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
+}
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/proguard-rules.pro

+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/androidTest/java/com/example/cls/ExampleInstrumentedTest.kt

+package com.example.cls
+
+import android.support.test.InstrumentationRegistry
+import android.support.test.runner.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("com.example.cls", appContext.packageName)
+    }
+}
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools" >
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.Cls"
+        tools:targetApi="31" >
+        <activity
+            android:name=".MainActivity"
+            android:exported="true" >
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+
+            <meta-data
+                android:name="android.app.lib_name"
+                android:value="" />
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/cpp/CMakeLists.txt

+
+# For more information about using CMake with Android Studio, read the
+# documentation: https://d.android.com/studio/projects/add-native-code.html
+
+# Sets the minimum version of CMake required to build the native library.
+
+cmake_minimum_required(VERSION 3.18.1)
+
+# Declares and names the project.
+
+project("cls")
+
+include_directories(src/main/cpp/)
+file(GLOB CPP_FILES "src/main/cpp/*.cpp")
+
+# 添加so库存放位置
+set(distribution_DIR ${CMAKE_SOURCE_DIR}/jniLibs)
+
+# Creates and names a library, sets it as either STATIC
+# or SHARED, and provides the relative paths to its source code.
+# You can define multiple libraries, and CMake builds them for you.
+# Gradle automatically packages shared libraries with your APK.
+
+add_library( # Sets the name of the library.
+        native-lib
+
+        # Sets the library as a shared library.
+        SHARED
+
+        # Provides a relative path to your source file(s).
+        ${CMAKE_CURRENT_SOURCE_DIR}/native-lib.cpp )
+
+# Searches for a specified prebuilt library and stores the path as a
+# variable. Because CMake includes system libraries in the search path by
+# default, you only need to specify the name of the public NDK library
+# you want to add. CMake verifies that the library exists before
+# completing its build.
+
+find_library( # Sets the name of the path variable.
+        log-lib
+
+        # Specifies the name of the NDK library that
+        # you want CMake to locate.
+        log )
+
+# Specifies libraries CMake should link to your target library. You
+# can link multiple libraries, such as libraries you define in this
+# build script, prebuilt third-party libraries, or system libraries.
+
+target_link_libraries( # Specifies the target library.
+        native-lib
+        ${CMAKE_SOURCE_DIR}/jniLibs/${ANDROID_ABI}/libc++_shared.so
+        ${CMAKE_SOURCE_DIR}/jniLibs/${ANDROID_ABI}/libcls.so
+        ${CMAKE_SOURCE_DIR}/jniLibs/${ANDROID_ABI}/libfastdeploy.so
+        ${CMAKE_SOURCE_DIR}/jniLibs/${ANDROID_ABI}/libonnxruntime.so
+        # Links the target library to the log library
+        # included in the NDK.
+        ${log-lib}
+        )

runtime/examples/audio_classification/android_demo/app/src/main/cpp/includes/panns_interface.h

+// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#pragma once
+
+namespace ppspeech {
+
+void* ClsCreateInstance(const char* conf_path);
+int ClsDestroyInstance(void* instance);
+int ClsFeedForward(void* instance,
+                   const char* wav_path,
+                   int topk,
+                   char* result,
+                   int result_max_len);
+int ClsReset(void* instance);
+}  // namespace ppspeech
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/cpp/native-lib.cpp

+// Write C++ code here.
+//
+// Do not forget to dynamically load the C++ library into your application.
+//
+// For instance,
+//
+// In MainActivity.java:
+//    static {
+//       System.loadLibrary("mysotest");
+//    }
+//
+// Or, in MainActivity.kt:
+//    companion object {
+//      init {
+//         System.loadLibrary("mysotest")
+//      }
+//    }
+
+#include <jni.h>
+#include <stdlib.h>
+#include <iostream>
+#include "includes/panns_interface.h"
+
+//如果你不想用引入头文件的方法，可以把导入头文件的include语句注释掉，然后将下面这句取消注释。
+//string getStringFromSoLibrary();
+
+void* cls_instance = nullptr;
+
+extern "C"
+JNIEXPORT jboolean JNICALL Java_com_baidu_paddlespeech_cls_MainActivity_nClsCreateInstance(JNIEnv *env, jobject instance)
+{
+    if (cls_instance != nullptr) {
+        ppspeech::ClsDestroyInstance(cls_instance);
+        cls_instance = nullptr;
+    }
+    std::string conf_path = "/data/local/tmp/masimeng/cls/conf";
+    cls_instance = ppspeech::ClsCreateInstance(conf_path.c_str());
+    return true;
+}
+
+extern "C"
+JNIEXPORT jboolean JNICALL Java_com_baidu_paddlespeech_cls_MainActivity_nClsDestroyInstance(JNIEnv *env, jobject instance){
+    if (cls_instance != nullptr) {
+        ppspeech::ClsDestroyInstance(cls_instance);
+        cls_instance = nullptr;
+    }
+    return true;
+}
+
+extern "C"
+JNIEXPORT jstring JNICALL Java_com_baidu_paddlespeech_cls_MainActivity_nClsFeedForward(JNIEnv *env, jobject instance){
+    if (cls_instance != nullptr) {
+        char result[1024] = {0};
+        std::string wav_path = "/data/local/tmp/masimeng/cls/test.wav";
+        int ret = ppspeech::ClsFeedForward(cls_instance, wav_path.c_str(), 1, result, 1024);
+        return env->NewStringUTF(result);
+    }
+    return env->NewStringUTF(NULL);
+}
+
+extern "C"
+JNIEXPORT jboolean JNICALL Java_com_baidu_paddlespeech_cls_MainActivity_nClsReset(JNIEnv *env, jobject instance){
+    if (cls_instance != nullptr) {
+        ppspeech::ClsReset(cls_instance);
+    }
+    return true;
+}
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/java/com/example/cls/MainActivity.kt

+package com.baidu.paddlespeech.cls
+
+import android.support.v7.app.AppCompatActivity
+import android.os.Bundle
+import android.widget.TextView
+
+class MainActivity : AppCompatActivity() {
+    private lateinit var tvContent: TextView
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_main)
+        tvContent = findViewById(R.id.tv_content)
+
+        nClsCreateInstance()
+        tvContent.text = nClsFeedForward()
+        nClsReset()
+        nClsDestroyInstance()
+    }
+
+    external fun nClsCreateInstance(): Boolean
+    external fun nClsDestroyInstance(): Boolean
+    external fun nClsFeedForward(): String
+    external fun nClsReset(): Boolean
+
+    companion object{
+        init {
+            System.loadLibrary("native-lib")
+        }
+    }
+}
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/drawable-v24/ic_launcher_foreground.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/drawable/ic_launcher_background.xml

+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

runtime/examples/audio_classification/android_demo/app/src/main/res/layout/activity_main.xml

+<?xml version="1.0" encoding="utf-8"?>
+<android.support.constraint.ConstraintLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+    <TextView
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Hello World!"
+        android:id="@+id/tv_content"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+
+  </android.support.constraint.ConstraintLayout>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/values-night/themes.xml

+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.Cls" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryDark">@color/purple_700</item>
+        <item name="colorAccent">@color/teal_200</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/values/colors.xml

+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/values/strings.xml

+<resources>
+    <string name="app_name">cls</string>
+</resources>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/values/themes.xml

+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.Cls" parent="Theme.AppCompat.Light.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryDark">@color/purple_700</item>
+        <item name="colorAccent">@color/teal_200</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/xml/backup_rules.xml

+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/app/src/main/res/xml/data_extraction_rules.xml

+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>
\ No newline at end of file

runtime/examples/audio_classification/android_demo/build.gradle

+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id 'com.android.application' version '7.3.1' apply false
+    id 'com.android.library' version '7.3.1' apply false
+    id 'org.jetbrains.kotlin.android' version '1.7.20' apply false
+}
\ No newline at end of file

runtime/examples/audio_classification/android_demo/gradle.properties

+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true
\ No newline at end of file

runtime/examples/audio_classification/android_demo/gradle/wrapper/gradle-wrapper.properties

+#Mon Jan 16 16:37:04 CST 2023
+distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
+distributionPath=wrapper/dists
+zipStorePath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME

runtime/examples/audio_classification/android_demo/gradlew

+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

runtime/examples/audio_classification/android_demo/gradlew.bat

+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

runtime/examples/audio_classification/android_demo/settings.gradle

+pluginManagement {
+    repositories {
+        gradlePluginPortal()
+        google()
+        mavenCentral()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+rootProject.name = "cls"
+include ':app'

runtime/examples/audio_classification/conf

+[CONF]
+wav_normal=true
+wav_normal_type=linear
+wav_norm_mul_factor=1.0
+model_path=./inference.onnx
+param_path=
+dict_path=./label_list
+num_cpu_thread=1
+samp_freq=32000
+frame_length_ms=32
+frame_shift_ms=10
+num_bins=64
+low_freq=50
+high_freq=14000
+dither=0.0

runtime/examples/audio_classification/label_list

+Dog
+Rooster
+Pig
+Cow
+Frog
+Cat
+Hen
+Insects (flying)
+Sheep
+Crow
+Rain
+Sea waves
+Crackling fire
+Crickets
+Chirping birds
+Water drops
+Wind
+Pouring water
+Toilet flush
+Thunderstorm
+Crying baby
+Sneezing
+Clapping
+Breathing
+Coughing
+Footsteps
+Laughing
+Brushing teeth
+Snoring
+Drinking, sipping
+Door knock
+Mouse click
+Keyboard typing
+Door, wood creaks
+Can opening
+Washing machine
+Vacuum cleaner
+Clock alarm
+Clock tick
+Glass breaking
+Helicopter
+Chainsaw
+Siren
+Car horn
+Engine
+Train
+Church bells
+Airplane
+Fireworks
+Hand saw

runtime/examples/audio_classification/scp

+test.wav

runtime/examples/vad/vad-android-demo/.gradle/buildOutputCleanup/cache.properties

+#Wed Mar 29 16:03:45 CST 2023
+gradle.version=6.1.1

runtime/examples/vad/vad-android-demo/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

runtime/examples/vad/vad-android-demo/.idea/.name

+VAD
\ No newline at end of file

runtime/examples/vad/vad-android-demo/.idea/compiler.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="11" />
+  </component>
+</project>
\ No newline at end of file

runtime/examples/vad/vad-android-demo/.idea/gradle.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/example" />
+            <option value="$PROJECT_DIR$/vad" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>
\ No newline at end of file

runtime/examples/vad/vad-android-demo/.idea/jarRepositories.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="RemoteRepositoriesConfiguration">
+    <remote-repository>
+      <option name="id" value="central" />
+      <option name="name" value="Maven Central repository" />
+      <option name="url" value="https://repo1.maven.org/maven2" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="jboss.community" />
+      <option name="name" value="JBoss Community repository" />
+      <option name="url" value="https://repository.jboss.org/nexus/content/repositories/public/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="BintrayJCenter" />
+      <option name="name" value="BintrayJCenter" />
+      <option name="url" value="https://jcenter.bintray.com/" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="maven" />
+      <option name="name" value="maven" />
+      <option name="url" value="https://jitpack.io" />
+    </remote-repository>
+    <remote-repository>
+      <option name="id" value="Google" />
+      <option name="name" value="Google" />
+      <option name="url" value="https://dl.google.com/dl/android/maven2/" />
+    </remote-repository>
+  </component>
+</project>
\ No newline at end of file

runtime/examples/vad/vad-android-demo/.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_11" default="true" project-jdk-name="Android Studio default JDK" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>
\ No newline at end of file

runtime/examples/vad/vad-android-demo/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

runtime/examples/vad/vad-android-demo/LICENSE.md

+Copyright 2019 Georgiy Konovalov
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and 
+associated documentation files (the "Software"), to deal in the Software without restriction, 
+including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, 
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial 
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT 
+NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file

runtime/examples/vad/vad-android-demo/README

+'''
+INSTALL
+'''
+执行目录为speechx根目录
+sh build_android.sh
+cp build/Android/arm64-v8a-api-21/vad-android-out/*.so examples/vad/vad-android-demo/vad/src/main/cpp/jniLibs/arm64-v8a
+cp build/Android/arm64-v8a-api-21/vad-android-out/vad_interface.h examples/vad/vad-android-demo/vad/src/main/cpp/includes/
+
+'''
+USEAGE
+'''
+1. 根据vad资源实际放在手机中的位置，更改vad-android-demo/app/src/main/cpp/vad/src/main/cpp/native-lib.cpp中的conf_path、fp_pcm_name、fp_log_name
+2. 在AndroidStudio中编译执行

runtime/examples/vad/vad-android-demo/README.md

+This VAD library can process audio in real-time utilizing 
+[Gaussian Mixture Model](http://en.wikipedia.org/wiki/Mixture_model#Gaussian_mixture_model) (GMM)
+which helps identify presence of human speech in an audio sample that contains a mixture of speech 
+and noise. VAD work offline and all processing done on device.
+  
+Library based on 
+[WebRTC VAD](https://chromium.googlesource.com/external/webrtc/+/branch-heads/43/webrtc/common_audio/vad/) 
+from Google which is reportedly one of the best available: it's fast, modern and free.
+This  algorithm has  found  wide adoption and has recently become one of 
+the gold-standards for delay-sensitive scenarios like web-based interaction.
+  
+If you are looking for a higher accuracy and faster processing time I recommend to use Deep Neural 
+Networks(DNN). Please see for reference the following paper with 
+[DNN vs GMM](https://www.microsoft.com/en-us/research/uploads/prod/2018/02/KoPhiliposeTashevZarar_ICASSP_2018.pdf)
+comparison.
+
+<p align="center">
+<img src="https://raw.githubusercontent.com/gkonovalov/android-vad/master/demo.gif" alt="drawing" height="400"/>
+</p>
+
+## Parameters
+VAD library only accepts 16-bit mono PCM audio stream and can work with next Sample Rates, Frame Sizes and Classifiers. 
+<table>
+<tr>
+<td>
+&nbsp
+
+| Valid Sample Rate  | Valid Frame Size  |   
+|:-------------------|:------------------|   
+| 8000Hz             | 80, 160, 240      |  
+| 16000Hz            | 160, 320, 480     |   
+| 32000Hz            | 320, 640, 960     |   
+| 48000Hz            | 480, 960, 1440    |   
+</td>
+<td>
+&nbsp
+
+| Valid Classifiers |
+|:------------------|
+| NORMAL            |
+| LOW_BITRATE       |
+| AGGRESSIVE        |
+| VERY_AGGRESSIVE   |
+</td>
+</tr>
+</table>
+
+
+**Silence duration (ms)** - this parameter used in Continuous Speech detector,
+the value of this parameter will define the necessary and sufficient 
+duration of negative results to recognize it as silence.
+ 
+**Voice duration (ms)** - this parameter used in Continuous Speech detector,
+the value of this parameter will define the necessary and sufficient 
+duration of positive results to recognize result as speech.
+
+Recommended parameters:
+* Sample Rate - **16KHz**,
+* Frame Size - **160**,
+* Mode - **VERY_AGGRESSIVE**,
+* Silence Duration - **500ms**,
+* Voice Duration - **500ms**;
+
+## Usage
+VAD supports 2 different ways of detecting speech:
+1. Continuous Speech listener was designed to detect long utterances 
+without returning false positive results when user makes pauses between 
+sentences.
+```java
+ Vad vad = new Vad(VadConfig.newBuilder()
+                .setSampleRate(VadConfig.SampleRate.SAMPLE_RATE_16K)
+                .setFrameSize(VadConfig.FrameSize.FRAME_SIZE_160)
+                .setMode(VadConfig.Mode.VERY_AGGRESSIVE)
+                .setSilenceDurationMillis(500)
+                .setVoiceDurationMillis(500)
+                .build());
+
+        vad.start();
+        
+        vad.addContinuousSpeechListener(short[] audioFrame, new VadListener() {
+            @Override
+            public void onSpeechDetected() {
+                //speech detected!
+            }
+
+            @Override
+            public void onNoiseDetected() {
+                //noise detected!
+            }
+        });
+        
+        vad.stop();
+```
+
+2. Speech detector was designed to detect speech/noise in small audio 
+frames and return result for every frame. This method will not work for 
+long utterances.
+```java
+ Vad vad = new Vad(VadConfig.newBuilder()
+                .setSampleRate(VadConfig.SampleRate.SAMPLE_RATE_16K)
+                .setFrameSize(VadConfig.FrameSize.FRAME_SIZE_160)
+                .setMode(VadConfig.Mode.VERY_AGGRESSIVE)
+                .build());
+
+        vad.start();
+        
+        boolean isSpeech = vad.isSpeech(short[] audioFrame);
+        
+        vad.stop();
+```
+## Requirements
+Android VAD supports Android 4.1 (Jelly Bean) and later.
+
+## Development
+
+To open the project in Android Studio:
+
+1. Go to *File* menu or the *Welcome Screen*
+2. Click on *Open...*
+3. Navigate to VAD's root directory.
+4. Select `setting.gradle`
+
+## Download
+[![](https://jitpack.io/v/gkonovalov/android-vad.svg)](https://jitpack.io/#gkonovalov/android-vad)
+
+
+Gradle is the only supported build configuration, so just add the dependency to your project `build.gradle` file:
+1. Add it in your root build.gradle at the end of repositories:
+```groovy
+allprojects {
+   repositories {
+     maven { url 'https://jitpack.io' }
+   }
+}
+```
+
+2. Add the dependency
+```groovy
+dependencies {
+    implementation 'com.github.gkonovalov:android-vad:1.0.1'
+}
+```
+
+You also can download precompiled AAR library and APK files from GitHub's [releases page](https://github.com/gkonovalov/android-vad/releases).
+
+------------
+Georgiy Konovalov 2021 (c) [MIT License](https://opensource.org/licenses/MIT)
\ No newline at end of file

runtime/examples/vad/vad-android-demo/build.gradle

+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+    repositories {
+        google()
+        jcenter()
+        maven { url 'https://jitpack.io' }
+    }
+
+    dependencies {
+        classpath 'com.android.tools.build:gradle:4.0.2'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:2.1'
+        // NOTE: Do not place your application dependencies here; they belong
+        // in the individual module build.gradle files
+    }
+}
+
+allprojects {
+    repositories {
+        google()
+        jcenter()
+        maven { url 'https://jitpack.io' }
+    }
+}
+
+task clean(type: Delete) {
+    delete rootProject.buildDir
+}

runtime/examples/vad/vad-android-demo/example/.gitignore

+/build

runtime/examples/vad/vad-android-demo/example/build.gradle

+apply plugin: 'com.android.application'
+
+android {
+    compileSdkVersion 29
+    buildToolsVersion "29.0.2"
+    defaultConfig {
+        applicationId "com.konovalov.vad.example"
+        minSdkVersion 16
+        targetSdkVersion 29
+        versionCode 2
+        versionName "1.0.1"
+
+        setProperty("archivesBaseName", "Android-VAD-v" + versionName)
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+}
+
+dependencies {
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation 'androidx.appcompat:appcompat:1.3.0'
+    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
+
+    implementation 'com.airbnb.android:lottie:3.4.0'
+    implementation 'org.permissionsdispatcher:permissionsdispatcher:4.8.0'
+    annotationProcessor 'org.permissionsdispatcher:permissionsdispatcher-processor:4.8.0'
+    implementation project(path: ':vad')
+
+    testImplementation 'junit:junit:4.12'
+    androidTestImplementation 'androidx.test:runner:1.3.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
+    implementation 'com.google.android.material:material:1.3.0'
+}

runtime/examples/vad/vad-android-demo/example/local.properties

+## This file must *NOT* be checked into Version Control Systems,
+# as it contains information specific to your local configuration.
+#
+# Location of the SDK. This is only used by Gradle.
+# For customization when using a Version Control System, please read the
+# header note.
+#Thu Mar 30 16:37:21 CST 2023
+sdk.dir=/Users/masimeng/Library/Android/sdk
+ndk.dir=/Users/masimeng/Library/Android/sdk/ndk/23.1.7779620/

runtime/examples/vad/vad-android-demo/example/proguard-rules.pro

+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

runtime/examples/vad/vad-android-demo/example/src/androidTest/java/com/konovalov/vad/example/ExampleInstrumentedTest.java

+package com.konovalov.vad.example;
+
+import android.content.Context;
+
+import androidx.test.platform.app.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import static org.junit.Assert.*;
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * @see <a href="http://d.android.com/tools/testing">Testing documentation</a>
+ */
+@RunWith(AndroidJUnit4.class)
+public class ExampleInstrumentedTest {
+    @Test
+    public void useAppContext() {
+        // Context of the app under test.
+        Context appContext = InstrumentationRegistry.getInstrumentation().getTargetContext();
+
+        assertEquals("com.konovalov.vad.example", appContext.getPackageName());
+    }
+}

runtime/examples/vad/vad-android-demo/example/src/main/AndroidManifest.xml

+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    package="com.konovalov.vad.example">
+
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
+    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
+    <uses-permission android:name="android.permission.MOUNT_UNMOUNT_FILESYSTEMS"
+        tools:ignore="ProtectedPermissions"></uses-permission>
+
+    <application
+        android:allowBackup="true"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:screenOrientation="portrait"
+        android:theme="@style/AppTheme.NoActionBar">
+        <activity android:name=".MainActivity">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+    </application>
+
+</manifest>
\ No newline at end of file

runtime/examples/vad/vad-android-demo/example/src/main/java/com/konovalov/vad/example/MainActivity.java

+package com.konovalov.vad.example;
+
+import androidx.appcompat.app.AppCompatActivity;
+
+import android.Manifest;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.AdapterView;
+import android.widget.ArrayAdapter;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+import com.google.android.material.floatingactionbutton.FloatingActionButton;
+import com.konovalov.vad.Vad;
+import com.konovalov.vad.example.recorder.VoiceRecorder;
+import com.konovalov.vad.example.recorder.VoiceRecorderConfig;
+
+import java.util.LinkedList;
+
+import permissions.dispatcher.NeedsPermission;
+import permissions.dispatcher.RuntimePermissions;
+
+@RuntimePermissions
+public class MainActivity extends AppCompatActivity implements VoiceRecorder.Listener, View.OnClickListener, AdapterView.OnItemSelectedListener {
+
+    private VoiceRecorderConfig.SampleRate DEFAULT_SAMPLE_RATE = VoiceRecorderConfig.SampleRate.SAMPLE_RATE_16K;
+    private VoiceRecorderConfig.FrameSize DEFAULT_FRAME_SIZE = VoiceRecorderConfig.FrameSize.FRAME_SIZE_1536;
+//    private VoiceRecorderConfig.Mode DEFAULT_MODE = VoiceRecorderConfig.Mode.VERY_AGGRESSIVE;
+
+//    private int DEFAULT_SILENCE_DURATION = 500;
+//    private int DEFAULT_VOICE_DURATION = 500;
+
+    private final String SPINNER_SAMPLE_RATE_TAG = "sample_rate";
+    private final String SPINNER_FRAME_SIZE_TAG = "frame_size";
+//    private final String SPINNER_MODE_TAG = "mode";
+
+    private FloatingActionButton recordingActionButton;
+    private TextView speechTextView;
+    private Spinner sampleRateSpinner;
+    private Spinner frameSpinner;
+//    private Spinner modeSpinner;
+
+    private ArrayAdapter sampleRateAdapter;
+    private ArrayAdapter frameAdapter;
+//    private ArrayAdapter modeAdapter;
+
+    private VoiceRecorder recorder;
+    private VoiceRecorderConfig config;
+    private boolean isRecording = false;
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_main);
+
+        config = VoiceRecorderConfig.newBuilder()
+                .setSampleRate(DEFAULT_SAMPLE_RATE)
+                .setFrameSize(DEFAULT_FRAME_SIZE)
+//                .setMode(DEFAULT_MODE)
+//                .setSilenceDurationMillis(DEFAULT_SILENCE_DURATION)
+//                .setVoiceDurationMillis(DEFAULT_VOICE_DURATION)
+                .build();
+
+        recorder = new VoiceRecorder(this, config);
+
+        speechTextView = findViewById(R.id.speechTextView);
+        sampleRateSpinner = findViewById(R.id.sampleRateSpinner);
+        sampleRateAdapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, getSampleRates());
+        sampleRateSpinner.setAdapter(sampleRateAdapter);
+        sampleRateSpinner.setTag(SPINNER_SAMPLE_RATE_TAG);
+        sampleRateSpinner.setSelection(getSampleRates().indexOf(DEFAULT_SAMPLE_RATE.name()), false);
+        sampleRateSpinner.setOnItemSelectedListener(this);
+
+        frameSpinner = findViewById(R.id.frameSampleRateSpinner);
+        frameAdapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, getFrameSizes());
+        frameSpinner.setAdapter(frameAdapter);
+        frameSpinner.setTag(SPINNER_FRAME_SIZE_TAG);
+        frameSpinner.setSelection(getFrameSizes().indexOf(DEFAULT_FRAME_SIZE.name()), false);
+        frameSpinner.setOnItemSelectedListener(this);
+
+//        modeSpinner = findViewById(R.id.modeSpinner);
+//        modeAdapter = new ArrayAdapter<>(this, android.R.layout.simple_spinner_dropdown_item, getModes());
+//        modeSpinner.setAdapter(modeAdapter);
+//        modeSpinner.setTag(SPINNER_MODE_TAG);
+//        modeSpinner.setSelection(getModes().indexOf(DEFAULT_MODE.name()), false);
+//        modeSpinner.setOnItemSelectedListener(this);
+
+        recordingActionButton = findViewById(R.id.recordingActionButton);
+        recordingActionButton.setOnClickListener(this);
+        recordingActionButton.setEnabled(false);
+
+        MainActivityPermissionsDispatcher.activateAudioPermissionWithPermissionCheck(this);
+    }
+
+    private LinkedList<String> getSampleRates() {
+        LinkedList<String> result = new LinkedList<>();
+        for (VoiceRecorderConfig.SampleRate sampleRate : VoiceRecorderConfig.SampleRate.values()) {
+            result.add(sampleRate.name());
+        }
+        return result;
+    }
+
+    private LinkedList<String> getFrameSizes() {
+        LinkedList<String> result = new LinkedList<>();
+        result.add(VoiceRecorderConfig.FrameSize.FRAME_SIZE_1536.name());
+
+        return result;
+    }
+
+//    private LinkedList<String> getModes() {
+//        LinkedList<String> result = new LinkedList<>();
+//        for (VadConfig.Mode mode : VadConfig.Mode.values()) {
+//            result.add(mode.name());
+//        }
+//        return result;
+//    }
+
+    private void startRecording() {
+        isRecording = true;
+        recorder.start();
+        recordingActionButton.setImageResource(R.drawable.stop);
+    }
+
+    private void stopRecording() {
+        isRecording = false;
+        recorder.stop();
+        recordingActionButton.setImageResource(R.drawable.red_dot);
+    }
+
+    @Override
+    public void onItemSelected(AdapterView<?> adapterView, View view, int position, long l) {
+        stopRecording();
+
+        switch (String.valueOf(adapterView.getTag())) {
+            case SPINNER_SAMPLE_RATE_TAG:
+                config.setSampleRate(VoiceRecorderConfig.SampleRate.valueOf(String.valueOf(sampleRateAdapter.getItem(position))));
+
+                frameAdapter.clear();
+                frameAdapter.addAll(getFrameSizes());
+                frameAdapter.notifyDataSetChanged();
+                frameSpinner.setSelection(0);
+
+                config.setFrameSize(VoiceRecorderConfig.FrameSize.valueOf(String.valueOf(frameAdapter.getItem(0))));
+                break;
+            case SPINNER_FRAME_SIZE_TAG:
+                config.setFrameSize(VoiceRecorderConfig.FrameSize.valueOf(String.valueOf(frameAdapter.getItem(position))));
+                break;
+//            case SPINNER_MODE_TAG:
+//                config.setMode(VadConfig.Mode.valueOf(String.valueOf(modeAdapter.getItem(position))));
+//                break;
+        }
+
+        recorder.updateConfig(config);
+    }
+
+    @Override
+    public void onNothingSelected(AdapterView<?> parent) {
+    }
+
+
+    @NeedsPermission(Manifest.permission.RECORD_AUDIO)
+    public void activateAudioPermission() {
+        recordingActionButton.setEnabled(true);
+    }
+
+    @Override
+    public void onClick(View v) {
+        if (!isRecording) {
+            startRecording();
+        } else {
+            stopRecording();
+        }
+    }
+
+    @Override
+    public void onSpeechDetected() {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                speechTextView.setText(R.string.speech_detected);
+            }
+        });
+    }
+
+    @Override
+    public void onNoiseDetected() {
+        runOnUiThread(new Runnable() {
+            @Override
+            public void run() {
+                speechTextView.setText(R.string.noise_detected);
+            }
+        });
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        // NOTE: delegate the permission handling to generated method
+        MainActivityPermissionsDispatcher.onRequestPermissionsResult(this, requestCode, grantResults);
+    }
+
+
+}

runtime/examples/vad/vad-android-demo/example/src/main/java/com/konovalov/vad/example/recorder/VoiceRecorder.java

+package com.konovalov.vad.example.recorder;
+
+import android.media.AudioFormat;
+import android.media.AudioRecord;
+import android.media.MediaRecorder;
+import android.util.Log;
+
+import com.konovalov.vad.example.recorder.VoiceRecorderConfig;
+
+import com.konovalov.vad.Vad;
+//import com.konovalov.vad.VadConfig;
+import com.konovalov.vad.VadListener;
+
+import static android.media.AudioFormat.CHANNEL_IN_MONO;
+import static android.media.AudioFormat.CHANNEL_IN_STEREO;
+
+import java.io.File;
+
+/**
+ * Created by George Konovalov on 11/16/2019.
+ */
+
+public class VoiceRecorder {
+    private static final int PCM_CHANNEL = CHANNEL_IN_MONO;
+    private static final int PCM_ENCODING_BIT = AudioFormat.ENCODING_PCM_16BIT;
+
+    private VoiceRecorderConfig config;
+    private Vad vad;
+    private AudioRecord audioRecord;
+    private Listener callback;
+    private Thread thread;
+
+    private boolean isListening = false;
+
+    private static final String TAG = VoiceRecorder.class.getSimpleName();
+
+    public VoiceRecorder(Listener callback, VoiceRecorderConfig config) {
+        this.callback = callback;
+        this.config = config;
+        this.vad = new Vad();
+    }
+
+    public void updateConfig(VoiceRecorderConfig config) {
+        this.config = config;
+    }
+
+    public void start() {
+        stop();
+        audioRecord = createAudioRecord();
+        if (audioRecord != null) {
+            isListening = true;
+            audioRecord.startRecording();
+
+            thread = new Thread(new ProcessVoice());
+            thread.start();
+            vad.start();
+        } else {
+            Log.w(TAG, "Failed start Voice Recorder!");
+        }
+    }
+
+
+    public void stop() {
+        isListening = false;
+        if (thread != null) {
+            thread.interrupt();
+            thread = null;
+        }
+        if (audioRecord != null) {
+            try {
+                audioRecord.release();
+            } catch (Exception e) {
+                Log.e(TAG, "Error stop AudioRecord ", e);
+            }
+            audioRecord = null;
+        }
+        if (vad != null) {
+            vad.stop();
+        }
+    }
+
+
+    private AudioRecord createAudioRecord() {
+        try {
+            final int minBufSize = AudioRecord.getMinBufferSize(config.getSampleRate().getValue(), PCM_CHANNEL, PCM_ENCODING_BIT);
+            int frame_size = config.getFrameSize().getValue();
+            if (minBufSize > frame_size) {
+                Log.e(TAG, "minBufSize > frame_size");
+                return null;
+            }
+            Log.i(TAG, "minBufSize : " + minBufSize);
+            final AudioRecord audioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, config.getSampleRate().getValue(), PCM_CHANNEL, PCM_ENCODING_BIT, frame_size);
+            Log.i(TAG, "config.getSampleRate().getValue() : " + config.getSampleRate().getValue());
+
+            if (audioRecord.getState() == AudioRecord.STATE_INITIALIZED) {
+                return audioRecord;
+            } else {
+                audioRecord.release();
+            }
+        } catch (IllegalArgumentException e) {
+            Log.e(TAG, "Error can't create AudioRecord ", e);
+        }
+
+        return null;
+    }
+
+    private int getNumberOfChannels() {
+        switch (PCM_CHANNEL) {
+            case CHANNEL_IN_MONO:
+                return 1;
+            case CHANNEL_IN_STEREO:
+                return 2;
+        }
+        return 1;
+    }
+
+    private class ProcessVoice implements Runnable {
+
+        @Override
+        public void run() {
+            android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_AUDIO);
+            final int minBufSize = AudioRecord.getMinBufferSize(config.getSampleRate().getValue(), PCM_CHANNEL, PCM_ENCODING_BIT);
+            while (!Thread.interrupted() && isListening && audioRecord != null) {
+                short[] buffer = new short[config.getFrameSize().getValue()];
+                audioRecord.read(buffer, 0, buffer.length);
+                detectSpeech(buffer);
+            }
+        }
+
+        private void detectSpeech(short[] buffer) {
+            vad.addContinuousSpeechListener(buffer, new VadListener() {
+                @Override
+                public void onSpeechDetected() {
+                    callback.onSpeechDetected();
+                }
+
+                @Override
+                public void onNoiseDetected() {
+                    callback.onNoiseDetected();
+                }
+            });
+        }
+    }
+
+    public interface Listener {
+        void onSpeechDetected();
+
+        void onNoiseDetected();
+    }
+
+}

runtime/examples/vad/vad-android-demo/example/src/main/java/com/konovalov/vad/example/recorder/VoiceRecorderConfig.java

+package com.konovalov.vad.example.recorder;
+
+
+/**
+ * Created by George Konovalov on 11/16/2019.
+ */
+
+public class VoiceRecorderConfig {
+    private SampleRate sampleRate;
+    private Mode mode;
+    private FrameSize frameSize;
+    private int voiceDurationMillis;
+    private int silenceDurationMillis;
+
+    public VoiceRecorderConfig() {
+    }
+
+    public VoiceRecorderConfig(Builder builder) {
+        this.voiceDurationMillis = builder.voiceDurationMillis;
+        this.silenceDurationMillis = builder.silenceDurationMillis;
+        this.sampleRate = builder.sampleRate;
+        this.frameSize = builder.frameSize;
+        this.mode = builder.mode;
+    }
+
+    public SampleRate getSampleRate() {
+        return sampleRate;
+    }
+
+    public Mode getMode() {
+        return mode;
+    }
+
+    public FrameSize getFrameSize() {
+        return frameSize;
+    }
+
+    public int getVoiceDurationMillis() {
+        return voiceDurationMillis;
+    }
+
+    public int getSilenceDurationMillis() {
+        return silenceDurationMillis;
+    }
+
+    public void setSampleRate(SampleRate sampleRate) {
+        this.sampleRate = sampleRate;
+    }
+
+    public void setMode(Mode mode) {
+        this.mode = mode;
+    }
+
+    public void setFrameSize(FrameSize frameSize) {
+        this.frameSize = frameSize;
+    }
+
+    public void setVoiceDurationMillis(int voiceDurationMillis) {
+        this.voiceDurationMillis = voiceDurationMillis;
+    }
+
+    public void setSilenceDurationMillis(int silenceDurationMillis) {
+        this.silenceDurationMillis = silenceDurationMillis;
+    }
+
+    public static Builder newBuilder() {
+        return new Builder();
+    }
+
+    public static class Builder {
+        private SampleRate sampleRate = SampleRate.SAMPLE_RATE_16K;
+        private Mode mode = Mode.VERY_AGGRESSIVE;
+        private FrameSize frameSize;
+        private int voiceDurationMillis = 500;
+        private int silenceDurationMillis = 500;
+
+        private Builder() {
+        }
+
+        public Builder setSampleRate(SampleRate sampleRate) {
+            this.sampleRate = sampleRate;
+            return this;
+        }
+
+        public Builder setMode(Mode mode) {
+            this.mode = mode;
+            return this;
+        }
+
+        public Builder setFrameSize(FrameSize frameSize) {
+            this.frameSize = frameSize;
+            return this;
+        }
+
+        public Builder setVoiceDurationMillis(int voiceDurationMillis) {
+            this.voiceDurationMillis = voiceDurationMillis;
+            return this;
+        }
+
+        public Builder setSilenceDurationMillis(int silenceDurationMillis) {
+            this.silenceDurationMillis = silenceDurationMillis;
+            return this;
+        }
+
+        public VoiceRecorderConfig build() {
+            return new VoiceRecorderConfig(this);
+        }
+    }
+
+    public enum SampleRate {
+        SAMPLE_RATE_16K(16000);
+
+        private int sampleRate;
+
+        public int getValue() {
+            return sampleRate;
+        }
+
+        SampleRate(int sampleRate) {
+            this.sampleRate = sampleRate;
+        }
+    }
+
+    public enum Mode {
+        NORMAL(0),
+        LOW_BITRATE(1),
+        AGGRESSIVE(2),
+        VERY_AGGRESSIVE(3);
+
+        private int mode;
+
+        public int getValue() {
+            return mode;
+        }
+
+        Mode(int mode) {
+            this.mode = mode;
+        }
+    }
+
+    public enum FrameSize {
+        FRAME_SIZE_1536(1536);
+
+        private int frameSize;
+
+        public int getValue() {
+            return frameSize;
+        }
+
+        FrameSize(int frameSize) {
+            this.frameSize = frameSize;
+        }
+    }
+
+
+
+}