Speaker embedding based on PyTorch

• This code is used to extract the speaker's feature from wav and make the speaker's embedding.
• This code is referred from Speaker embedding based on TensorFlow 1.x
• The algorithm is based on the following papers:

Wan, L., Wang, Q., Papir, A., & Moreno, I. L. (2017). Generalized end-to-end loss for speaker verification. arXiv preprint arXiv:1710.10467.
Jia, Y., Zhang, Y., Weiss, R. J., Wang, Q., Shen, J., Ren, F., ... & Wu, Y. (2018). Transfer Learning from Speaker Verification to Multispeaker Text-To-Speech Synthesis. arXiv preprint arXiv:1806.04558.
Qian, K., Zhang, Y., Chang, S., Yang, X., & Hasegawa-Johnson, M. (2019). Zero-shot voice style transfer with only autoencoder loss. arXiv preprint arXiv:1905.05879.

• The current version uses Transformer instead of LSTM. If you want an LSTM-based version, Please check here.

Requirements

• torch >= 1.5.0

• tensorboardX >= 2.0

• librosa >= 0.7.2

• matplotlib >= 3.1.3

• Optional for loss and t-SNE result check

  • tensorboard >= 2.2.2

Used dataset

• Currently uploaded code is compatible with the following datasets. The O mark to the left of the dataset name is the dataset actually used in the uploaded result. I used all datasets.

		Dataset	Dataset address
O		VCTK	https://datashare.is.ed.ac.uk/handle/10283/2651
O		LibriTTS	https://openslr.org/60/
O		CMU Arctic	http://www.festvox.org/cmu_arctic/index.html
O		VoxCeleb1	http://www.robots.ox.ac.uk/~vgg/data/voxceleb/
O		VoxCeleb2	http://www.robots.ox.ac.uk/~vgg/data/voxceleb/

Hyper parameters

Before proceeding, please set the pattern, inference, and checkpoint paths in 'Hyper_Parameter.yaml' according to your environment.

• Sound

  • Setting basic sound parameters.

• Encoder

  • Setting the parameters of speaker embedding.

• Train

  • Setting the parameters of training.
  • When a speaekr's pattern is small than Pattern_per_Speaker, the speaker's all patterns are ignored.

• Checkpoint_Path

  • Setting the checkpoint path

• Log_Path

  • Setting the tensorboard log path

• Device

  • Setting which GPU device is used in multi-GPU enviornment.
  • Or, if using only CPU, please set '-1'.

Generate pattern

Command

python Pattern_Generate.py [parameters]

Parameters

At least, one or more of datasets must be used.

• -vctk
  • Set the path of VCTK. VCTK's patterns are generated.
• -vc1
  • Set the path of VoxCeleb1. VoxCeleb1's patterns are generated.
• -vc2
  • Set the path of VoxCeleb2. VoxCeleb2's patterns are generated.
• -libri
  • Set the path of LibriTTS. LibriTTS's patterns are generated.
• -cmua
  • Set the path of CMU Arctic. CMU Arctic's patterns are generated.
• -vc1t
  • Set the path of VoxCeleb1 testset. VoxCeleb1's patterns are generated for an evaluation.
• -mw
  • The number of threads used to create the pattern

Run

Command

python Train.py -s <int>

• -s <int>
  • The resume step parameter.
  • Default is 0.

Result

• The following results are based on the checkpoint of 100000 steps of 64 speaker (15 patterns per speaker) batchs (148.81 epochs).

• Test speakers are the testset of VoxCeleb1 which is not trained.

• As a result of comparison with the model except VC2 dataset, I concluded that the number of speakers is important for model performance.

• The following two t-SNE result figures are from same trained model.

  • Both are used one utterence mel-spectrogram.
  • Upper is the result of single slice which is based on the random selected frame length from 140 to 180 like training.
  • Lower is the result of multi slices which is based on the 5 x 64 frames length (32 frames are overlapped).
  • Usually, multi slices are stable than single slice.

• Single slice

  

• Multi slices

  

Trained checkpoint

• This is the checkpoint of 100000 steps of 64 speaker (15 patterns per speaker) batchs (148.81 epochs).

• Checkpoint link

• Hyperparameter link