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PaddleSpeech/README.md

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Deep Speech 2 on PaddlePaddle

Installation

Please replace $PADDLE_INSTALL_DIR with your own paddle installation directory.

pip install -r requirements.txt
export LD_LIBRARY_PATH=$PADDLE_INSTALL_DIR/Paddle/third_party/install/warpctc/lib:$LD_LIBRARY_PATH

For some machines, we also need to install libsndfile1. Details to be added.

Usage

Preparing Data

cd data
python librispeech.py
cat manifest.libri.train-* > manifest.libri.train-all
cd ..

After running librispeech.py, we have several "manifest" json files named with a prefix manifest.libri.. A manifest file summarizes a speech data set, with each line containing the meta data (i.e. audio filepath, transcription text, audio duration) of each audio file within the data set, in json format.

By cat manifest.libri.train-* > manifest.libri.train-all, we simply merge the three seperate sample sets of LibriSpeech (train-clean-100, train-clean-360, train-other-500) into one training set. This is a simple way for merging different data sets.

More help for arguments:

python librispeech.py --help

Traininig

For GPU Training:

CUDA_VISIBLE_DEVICES=0,1,2,3 python train.py --trainer_count 4 --train_manifest_path ./data/manifest.libri.train-all

For CPU Training:

python train.py --trainer_count 8 --use_gpu False -- train_manifest_path ./data/manifest.libri.train-all

More help for arguments:

python train.py --help

Inferencing

python infer.py

More help for arguments:

python infer.py --help