StarGAN-VC

This is a pytorch implementation of the paper: StarGAN-VC: Non-parallel many-to-many voice conversion with star generative adversarial networks.

The converted voice examples are in samples and results_2019-06-10 directory

Dependencies

• Python 3.6+
• pytorch 1.0
• librosa
• pyworld
• tensorboardX
• scikit-learn

Usage

Download dataset

Download the vcc 2016 dataset to the current directory

python download.py 

The downloaded zip files are extracted to ./data/vcc2016_training and ./data/evaluation_all.

1. training set: In the paper, the author choose four speakers from ./data/vcc2016_training. So we move the corresponding folder(eg. SF1,SF2,TM1,TM2 ) to ./data/speakers.
2. testing set In the paper, the author choose four speakers from ./data/evaluation_all. So we move the corresponding folder(eg. SF1,SF2,TM1,TM2 ) to ./data/speakers_test.

The data directory now looks like this:

data
├── speakers  (training set)
│   ├── SF1
│   ├── SF2
│   ├── TM1
│   └── TM2
├── speakers_test (testing set)
│   ├── SF1
│   ├── SF2
│   ├── TM1
│   └── TM2
├── vcc2016_training (vcc 2016 training set)
│   ├── ...
├── evaluation_all (vcc 2016 evaluation set, we use it as testing set)
│   ├── ...

Preprocess

Extract features (mcep, f0, ap) from each speech clip. The features are stored as npy files. We also calculate the statistical characteristics for each speaker.

python preprocess.py

This process may take minutes !

Train

python main.py

Convert

python main.py --mode test --test_iters 200000 --src_speaker TM1 --trg_speaker "['TM1','SF1']"

Network structure

Note: Our implementation follows the original paper’s network structure, while pytorch StarGAN-VC code use StarGAN's network.Both can generate good audio quality.

Reference

tensorflow StarGAN-VC code

StarGAN code

CycleGAN-VC code

pytorch-StarGAN-VC code

StarGAN-VC paper

StarGAN paper

CycleGAN paper

Update 2019/06/10

The former implementation's network structure is the network of the original paper, but in order to achieve better conversion result, the following modifications are made in this update:

• Modification of classifier without training problem
• Update loss function
• Modify the discriminator activation function to tanh

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