Jax/Flax implementation of Variational-DiffWave.

Overview

jax-variational-diffwave

Jax/Flax implementation of Variational-DiffWave. (Zhifeng Kong et al., 2020, Diederik P. Kingma et al., 2021.)

  • DiffWave with Continuous-time Variational Diffusion Models.
  • DiffWave: A Versatile Diffusion Model for Audio Synthesis, Zhifeng Kong et al., 2020. [arXiv:2009.09761]
  • Variational Diffusion Models, Diederik P. Kingma et al., 2021. [arXiv:2107.00630]

Requirements

Tested in python 3.7.9 conda environment, requirements.txt

Usage

To train model, run train.py.
Checkpoint will be written on TrainConfig.ckpt, tensorboard summary on TrainConfig.log.

python train.py --data-dir /datasets/ljspeech --from-raw
tensorboard --logdir ./log/

To start to train from previous checkpoint, --load-step is available.

python train.py --load-epoch 10 --config ./ckpt/l1.json

[WIP] To synthesize test set, run synth.py.

python synth.py

[WIP] Pretrained checkpoints are relased on releases.

To use pretrained model, download files and unzip it.
Checkout git repository to proper commit tags and following is sample script.

with open('l1.json') as f:
    config = Config.load(json.load(f))

diffwave = VLBDiffWaveApp(config.model)
diffwave.restore('./l1/l1_99.ckpt')

# mel: [B, T, mel]
audio, _ = diffwave(mel, timesteps=50, key=jax.random.PRNGKey(0))
Owner
YoungJoong Kim
c++, python, fp, ml
YoungJoong Kim
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