USLM: 统一语音语言模型

简介

USLM基于SpeechTokenizer构建，包含自回归和非自回归模型，可以分层建模语音中的信息。自回归(AR)模型通过对第一个RVQ量化器的标记进行建模来捕捉内容信息。非自回归(NAR)模型通过基于第一层标记生成后续量化器的标记来为AR模型补充副语言信息。

概览

安装

按照以下步骤快速开始：

# 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更新至最新版本
# https://github.com/lhotse-speech/lhotse/pull/956
# https://github.com/lhotse-speech/lhotse/pull/960
pip uninstall lhotse
pip install git+https://github.com/lhotse-speech/lhotse

# k2
# 在https://huggingface.co/csukuangfj/k2找到正确版本
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

#SpeechTokenizer
pip install -U speechtokenizer

# uslm
git clone https://github.com/0nutation/USLM
cd USLM
pip install -e .

USLM模型

此版本的USLM在LibriTTS数据集上训练，由于数据限制，性能可能不是最优的。

模型	数据集	描述
USLM_libri	LibriTTS	在LibriTTS数据集上训练的USLM

使用USLM进行零样本TTS

下载预训练的SpeechTokenizer模型：

st_dir="ckpt/speechtokenizer/"
mkdir -p ${st_dir}
cd ${st_dir}
wget "https://huggingface.co/fnlp/SpeechTokenizer/resolve/main/speechtokenizer_hubert_avg/SpeechTokenizer.pt"
wget "https://huggingface.co/fnlp/SpeechTokenizer/resolve/main/speechtokenizer_hubert_avg/config.json" 
cd -

下载预训练的USLM模型：

uslm_dir="ckpt/uslm/"
mkdir -p ${uslm_dir}
cd ${uslm_dir}
wget "https://huggingface.co/fnlp/USLM/resolve/main/USLM_libritts/USLM.pt"
wget "https://huggingface.co/fnlp/USLM/resolve/main/USLM_libritts/unique_text_tokens.k2symbols" 
cd -

推理：

out_dir="output/"
mkdir -p ${out_dir}

python3 bin/infer.py --output-dir ${out_dir}/ \
    --model-name uslm --norm-first true --add-prenet false \
    --share-embedding true --norm-first true --add-prenet false \
    --audio-extractor SpeechTokenizer \
    --speechtokenizer-dir "${st_dir}" \
    --checkpoint=${uslm_dir}/USLM.pt \
    --text-tokens "${uslm_dir}/unique_text_tokens.k2symbols" \
    --text-prompts "mr Soames was a tall, spare man, of a nervous and excitable temperament." \
    --audio-prompts prompts/1580_141083_000002_000002.wav \
    --text "Begin with the fundamental steps of the process. This will give you a solid foundation to build upon and boost your confidence. " \

或者你可以直接运行inference.sh

bash inference.sh

致谢

VALL-E：我们基于的代码库。

引用

如果你在论文中使用了这个代码或结果，请引用我们的工作：

@misc{zhang2023speechtokenizer,
      title={SpeechTokenizer: Unified Speech Tokenizer for Speech Language Models}, 
      author={Xin Zhang and Dong Zhang and Shimin Li and Yaqian Zhou and Xipeng Qiu},
      year={2023},
      eprint={2308.16692},
      archivePrefix={arXiv},
      primaryClass={cs.CL}
}