* move s2t data preprocess into paddlespeech.dataset

* avg model, compute wer, format rsl into paddlespeech.dataset

* fix format rsl

* fix avg ckpts

Signed-off-by: Yulv-git <yulvchi@qq.com>

* mv dataset into paddlespeech.dataset

* add aidatatang

* fix import

* add function for generating srt file

在原来websocket_client.py的基础上，增加了由wav或mp3格式的音频文件生成对应srt格式字幕文件的功能

* add function for generating srt file

在原来websocket_client.py的基础上，增加了由wav或mp3格式的音频文件生成对应srt格式字幕文件的功能

* keep origin websocket_client.py

恢复原本的websocket_client.py文件

* add generating subtitle function into README

* add generate subtitle funciton into README

* add subtitle generation function

* add subtitle generation function

* iSTFTNet implementation based on hifigan, not affect the function and execution of HIFIGAN

* modify the comment in iSTFT.yaml

* add the comments in hifigan

* iSTFTNet implementation based on hifigan, not affect the function and execution of HIFIGAN

* modify the comment in iSTFT.yaml

* add the comments in hifigan

* add iSTFTNet.md

* modify the format of iSTFTNet.md

* modify iSTFT.yaml and hifigan.py

* Format code using pre-commit

* modify hifigan.py,delete the unused self.istft_layer_id , move the self.output_conv behind else, change conv_post to output_conv

* update iSTFTNet_csmsc_ckpt.zip download link

* modify iSTFTNet.md

* modify hifigan.py and iSTFT.yaml

* modify iSTFTNet.md

* add starganv2 vc trainer

* fix StarGANv2VCUpdater and losses

* fix StarGANv2VCEvaluator

* add some typehint

* fix elementwise_floordiv's fill_constant

* add float converter for min_value in attention

* Update README.md

* Update README_cn.md

* clean code

* add docstring

* add squeezeformer model

* change CodeStyle, test=asr

* change CodeStyle, test=asr

* fix subsample rate error, test=asr

* merge classes as required, test=asr

* change CodeStyle, test=asr

* fix missing code, test=asr

* split code to new file, test=asr

* remove rel_shift, test=asr

* add opencpop voc, test=tts

* soft link

* add opencpop hifigan, test=tts

* update

* mv dataio.py to s2t.io.speechbrain.dataio

mv dataio.py to paddlespeech.s2t.io.speechbrain.dataio

* remove transformers import.

* change optimizer same with released model

* add paddlenlp version in RESULT.md.

* fix run.sh

* fix data.sh step_num.

* add adadelta optimizer config.

* fix wav2vec2 test_wav.sh run error.

* add tokenizer config.

* add opencpop voc, test=tts

* soft link