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The GOLF vocoder for singing voice synthesis

Note: The latest version of the code should be capable of loading the old checkpoints (under ckpts/ismir23/ismir23), but the training for the v1 vocoder is not guaranteed to work. We're working on it. If you want to use the old code base that was made for the ISMIR 2023 paper, please checkout the ismir23 tag or commit 6d323da.

Data preparation

MPop600

  1. Download the MPop600 dataset. The dataset is conducted in a download-by-request manner. Please contact their third author Yi-Jhe Lee to get the raw files.
  2. Run the following command to resample the dataset to 24 kHz wave files.
python scripts/resample_dir.py **/f1/ output_dir --sr 24000
  1. Extract the foundamental frequency (F0). The f0s will be saved as .pv file in the same directory with the original files using 5 ms hop size.
python scripts/wav2f0.py output_dir

Training

(The following command has not been tested yet. See the note above.)

python main.py fit --config config.yaml --dataset.wav_dir output_dir

Evaluation

Objective Evaluation

MSS/MAE-f0

python main.py test --config config.yaml --ckpt_path checkpoint.ckpt --data.duration 6 --data.overlap 0 --data.batch_size 16 --trainer.logger false

FAD

First, store the synthesised waveforms in a directory.

python autoencode.py predict -c config.yaml --ckpt_path checkpoint.ckpt --trainer.logger false --seed_everything false --data.wav_dir output_dir --trainer.callbacks+=ltng.cli.MyPredictionWriter --trainer.callbacks.output_dir pred_dir

Make a new directory and copy the first three files of the f1 (or m1), like the following:

mpop600-test-f1
├── f1
│   ├── 001.wav
│   ├── 002.wav
│   └── 003.wav

Please also put your synthesised wavs under pred_dir/f1 to make it compatible with the script fad.py.

Then, run the following command to calculate the FAD score.

python fad.py mpop600-test-f1 pred_dir --model vggish

Due to incremental changes and improvements I made since 2023, the evaluation results (MSSTFT and MAE-f0) maybe slightly different from the ones reported in the ISMIR paper. Since we changed to use fadtk for the FAD evaluation, we report the new FAD scores here.

f1

Model FAD
DDSP 0.50 0.47
SawSing 0.38 0.32
GOLF 0.62 0.59
PULF 0.75 0.76

m1

Model FAD
DDSP 0.57 0.56
SawSing 0.48 0.44
GOLF 0.67 0.74
PULF 1.11 1.26

Real-Time Factor

python test_rtf.py config.yaml checkpoint.ckpt test.wav

Checkpoints

Female(f1)

Note: Please use the checkpoints with *converted* in the name for the latest version of the code.

Male(m1)

Additional links

Citation

If you find this code useful, please consider citing the following paper:

@inproceedings{ycy2023golf,
    title = {Singing Voice Synthesis Using Differentiable LPC and Glottal-Flow-Inspired Wavetables},
    author = {Yu, Chin-Yun and Fazekas, György},
    booktitle={Proc. International Society for Music Information Retrieval},
    year={2023},
    pages={667--675}
}