Merge pull request #937 from PaddlePaddle/fix_install

[install] Fix install

examples/librispeech/s2/conf/decode/decode.yaml

 batchsize: 0
 beam-size: 60
-ctc-weight: 0.0
-lm-weight: 0.0
+ctc-weight: 0.4
+lm-weight: 0.6
 maxlenratio: 0.0
 minlenratio: 0.0
 penalty: 0.0

examples/librispeech/s2/conf/decode/decode_att.yaml

+batchsize: 0
+beam-size: 60
+ctc-weight: 0.0
+lm-weight: 0.0
+maxlenratio: 0.0
+minlenratio: 0.0
+penalty: 0.0

examples/librispeech/s2/conf/decode/decode_all.yaml → examples/librispeech/s2/conf/decode/decode_ctc.yaml

 batchsize: 0
 beam-size: 60
 ctc-weight: 0.4
-lm-weight: 0.6
+lm-weight: 0.0
 maxlenratio: 0.0
 minlenratio: 0.0
-penalty: 0.0
\ No newline at end of file
+penalty: 0.0

requirements.txt

@@ -13,7 +13,8 @@ librosa
 llvmlite
 loguru
 matplotlib
-nara_wpenltk
+nara_wpe
+nltk
 numba
 numpy==1.20.0
 pandas