This paper proposes a speech representation disentanglement framework for one-shot/any-to-any voice conversion, which performs conversion across arbitrary speakers with only a single target-speaker utterance for reference. Vector quantization with contrastive predictive coding (VQCPC) is used for content encoding and mutual information (MI) is introduced as the correlation metric during training, to achieve proper disentanglement of content, speaker and pitch representations, by reducing their inter-dependencies in an unsupervised manner.

Many thanks to ericguizzo & AK391!

1. A Replicate demo is provided online, so you can play our pre-trained models there, have fun!
2. VQMIVC can be trained and tested inside a Docker environment via Cog now.
3. Gradio Web Demo is available, another online demo!

• Add more details on how to use Cog for development

Python 3.6 is used, install apex for speeding up training (optional), other requirements are listed in 'requirements.txt':

pip install -r requirements.txt

ParallelWaveGAN is used as the vocoder, so firstly please install ParallelWaveGAN to try the pre-trained models:

python convert_example.py -s {source-wav} -r {reference-wav} -c {converted-wavs-save-path} -m {model-path} 

For example:

python convert_example.py -s test_wavs/p225_038.wav -r test_wavs/p334_047.wav -c converted -m checkpoints/useCSMITrue_useCPMITrue_usePSMITrue_useAmpTrue/VQMIVC-model.ckpt-500.pt 

The converted wav is put in 'converted' directory.

• Step1. Data preparation & preprocessing

1. Put VCTK corpus under directory: 'Dataset/'

2. Training/testing speakers split & feature (mel+lf0) extraction:

    python preprocess.py
   

• Step2. model training:

1. Training with mutual information minimization (MIM):

    python train.py use_CSMI=True use_CPMI=True use_PSMI=True
   

2. Training without MIM:

    python train.py use_CSMI=False use_CPMI=False use_PSMI=False 
   

• Step3. model testing:

1. Put PWG vocoder under directory: 'vocoder/'

2. Inference with model trained with MIM:

    python convert.py checkpoint=checkpoints/useCSMITrue_useCPMITrue_usePSMITrue_useAmpTrue/model.ckpt-500.pt
   

3. Inference with model trained without MIM:

    python convert.py checkpoint=checkpoints/useCSMIFalse_useCPMIFalse_usePSMIFalse_useAmpTrue/model.ckpt-500.pt
   

If the code is used in your research, please Star our repo and cite our paper:

@inproceedings{wang21n_interspeech,
  author={Disong Wang and Liqun Deng and Yu Ting Yeung and Xiao Chen and Xunying Liu and Helen Meng},
  title={{VQMIVC: Vector Quantization and Mutual Information-Based Unsupervised Speech Representation Disentanglement for One-Shot Voice Conversion}},
  year=2021,
  booktitle={Proc. Interspeech 2021},
  pages={1344--1348},
  doi={10.21437/Interspeech.2021-283}
}

• The content encoder is borrowed from VectorQuantizedCPC, which also inspires the negative sampling within-utterance for CPC;
• The speaker encoder is borrowed from AdaIN-VC;
• The decoder is modified from AutoVC;
• Estimation of mutual information is modified from CLUB;
• Speech features extraction is based on espnet and Pyworld.