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An unofficial PyTorch implementation of VALL-E(Neural Codec Language Models are Zero-Shot Text to Speech Synthesizers).

We can train the VALL-E model on one GPU.

model

Demo

<a href="https://www.buymeacoffee.com/feiteng" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-blue.png" alt="Buy Me A Coffee" style="height: 40px !important;width: 145px !important;" ></a>

<img src="./docs/images/vallf.png" width="500" height="400">

Broader impacts

Since VALL-E could synthesize speech that maintains speaker identity, it may carry potential risks in misuse of the model, such as spoofing voice identification or impersonating a specific speaker.

To avoid abuse, Well-trained models and services will not be provided.

Install Deps

To get up and running quickly just follow the steps below:

# PyTorch
pip install torch==1.13.1 torchaudio==0.13.1 --extra-index-url https://download.pytorch.org/whl/cu116
pip install torchmetrics==0.11.1
# fbank
pip install librosa==0.8.1

# phonemizer pypinyin
apt-get install espeak-ng
## OSX: brew install espeak
pip install phonemizer==3.2.1 pypinyin==0.48.0

# lhotse update to newest version
# https://github.com/lhotse-speech/lhotse/pull/956
# https://github.com/lhotse-speech/lhotse/pull/960
pip uninstall lhotse
pip uninstall lhotse
pip install git+https://github.com/lhotse-speech/lhotse

# k2
# find the right version in https://huggingface.co/csukuangfj/k2
pip install https://huggingface.co/csukuangfj/k2/resolve/main/cuda/k2-1.23.4.dev20230224+cuda11.6.torch1.13.1-cp310-cp310-linux_x86_64.whl

# icefall
git clone https://github.com/k2-fsa/icefall
cd icefall
pip install -r requirements.txt
export PYTHONPATH=`pwd`/../icefall:$PYTHONPATH
echo "export PYTHONPATH=`pwd`/../icefall:\$PYTHONPATH" >> ~/.zshrc
echo "export PYTHONPATH=`pwd`/../icefall:\$PYTHONPATH" >> ~/.bashrc
cd -
source ~/.zshrc

# valle
git clone https://github.com/lifeiteng/valle.git
cd valle
pip install -e .

Training&Inference

LibriTTS demo Trained on one GPU with 24G memory

cd examples/libritts

# step1 prepare dataset
bash prepare.sh --stage -1 --stop-stage 3

# step2 train the model on one GPU with 24GB memory
exp_dir=exp/valle

## Train AR model
python3 bin/trainer.py --max-duration 80 --filter-min-duration 0.5 --filter-max-duration 14 --train-stage 1 \
      --num-buckets 6 --dtype "bfloat16" --save-every-n 10000 --valid-interval 20000 \
      --model-name valle --share-embedding true --norm-first true --add-prenet false \
      --decoder-dim 1024 --nhead 16 --num-decoder-layers 12 --prefix-mode 1 \
      --base-lr 0.05 --warmup-steps 200 --average-period 0 \
      --num-epochs 20 --start-epoch 1 --start-batch 0 --accumulate-grad-steps 4 \
      --exp-dir ${exp_dir}

## Train NAR model
cp ${exp_dir}/best-valid-loss.pt ${exp_dir}/epoch-2.pt  # --start-epoch 3=2+1
python3 bin/trainer.py --max-duration 40 --filter-min-duration 0.5 --filter-max-duration 14 --train-stage 2 \
      --num-buckets 6 --dtype "float32" --save-every-n 10000 --valid-interval 20000 \
      --model-name valle --share-embedding true --norm-first true --add-prenet false \
      --decoder-dim 1024 --nhead 16 --num-decoder-layers 12 --prefix-mode 1 \
      --base-lr 0.05 --warmup-steps 200 --average-period 0 \
      --num-epochs 40 --start-epoch 3 --start-batch 0 --accumulate-grad-steps 4 \
      --exp-dir ${exp_dir}

# step3 inference
python3 bin/infer.py --output-dir infer/demos \
    --checkpoint=${exp_dir}/best-valid-loss.pt \
    --text-prompts "KNOT one point one five miles per hour." \
    --audio-prompts ./prompts/8463_294825_000043_000000.wav \
    --text "To get up and running quickly just follow the steps below." \

# Demo Inference
https://github.com/lifeiteng/lifeiteng.github.com/blob/main/valle/run.sh#L68

train

Troubleshooting

Training on a custom dataset?

Contributing

Citing

To cite this repository:

@misc{valle,
  author={Feiteng Li},
  title={VALL-E: A neural codec language model},
  year={2023},
  url={http://github.com/lifeiteng/vall-e}
}
@article{VALL-E,
  title     = {Neural Codec Language Models are Zero-Shot Text to Speech Synthesizers},
  author    = {Chengyi Wang, Sanyuan Chen, Yu Wu,
               Ziqiang Zhang, Long Zhou, Shujie Liu,
               Zhuo Chen, Yanqing Liu, Huaming Wang,
               Jinyu Li, Lei He, Sheng Zhao, Furu Wei},
  year      = {2023},
  eprint    = {2301.02111},
  archivePrefix = {arXiv},
  volume    = {abs/2301.02111},
  url       = {http://arxiv.org/abs/2301.02111},
}

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