This repository provides all the necessary tools to perform speech enhancement (denoising) with a SepFormer model, implemented with SpeechBrain. The model was first trained on Microsoft-DNS 4 dataset and further fine-tuned on RescueSpeech dataset 16k sampling frequency. For a better experience we encourage you to learn more about SpeechBrain. Given below is model performance on RescueSpeech test set.

Release	Test-Set SI-SNRi	Test-Set SI-SDRi	Test-Set PESQ
07-01-23	7.849	8.414	2.24

where SI-SNRi and SI-SDRi indicates the improvement in SI-SNR and SI-SDR metric.

Install SpeechBrain

First of all, please install SpeechBrain with the following command:

pip install speechbrain

Please notice that we encourage you to read our tutorials and learn more about SpeechBrain.

Perform speech enhancement on your own audio file

python

from speechbrain.inference.separation import SepformerSeparation as separator
import torchaudio

model = separator.from_hparams(source="speechbrain/rescuespeech_sepformer", savedir='pretrained_models/rescuespeech_sepformer')

# for custom file, change path
est_sources = model.separate_file(path='speechbrain/rescuespeech_sepformer/example_rescuespeech16k.wav') 

torchaudio.save("enhanced_rescuespeech16k.wav", est_sources[:, :, 0].detach().cpu(), 16000)

Inference on GPU

To perform inference on the GPU, add run_opts={"device":"cuda"} when calling the from_hparams method.

You can find our training results (models, logs, etc) here.

Limitations

The SpeechBrain team does not provide any warranty on the performance achieved by this model when used on other datasets.

Referencing SpeechBrain

bibtex

@misc{speechbrain,
  title={{SpeechBrain}: A General-Purpose Speech Toolkit},
  author={Mirco Ravanelli and Titouan Parcollet and Peter Plantinga and Aku Rouhe and Samuele Cornell and Loren Lugosch and Cem Subakan and Nauman Dawalatabad and Abdelwahab Heba and Jianyuan Zhong and Ju-Chieh Chou and Sung-Lin Yeh and Szu-Wei Fu and Chien-Feng Liao and Elena Rastorgueva and François Grondin and William Aris and Hwidong Na and Yan Gao and Renato De Mori and Yoshua Bengio},
  year={2021},
  eprint={2106.04624},
  archivePrefix={arXiv},
  primaryClass={eess.AS},
  note={arXiv:2106.04624}
}

Referencing SepFormer

bibtex

@inproceedings{subakan2021attention,
      title={Attention is All You Need in Speech Separation}, 
      author={Cem Subakan and Mirco Ravanelli and Samuele Cornell and Mirko Bronzi and Jianyuan Zhong},
      year={2021},
      booktitle={ICASSP 2021}
}

Referencing RescueSpeech

bibtex

@misc{sagar2023rescuespeech,
    title={RescueSpeech: A German Corpus for Speech Recognition in Search and Rescue Domain},
    author={Sangeet Sagar and Mirco Ravanelli and Bernd Kiefer and Ivana Kruijff Korbayova and Josef van Genabith},
    year={2023},
    eprint={2306.04054},
    archivePrefix={arXiv},
    primaryClass={eess.AS}
}

About SpeechBrain

Website: https://speechbrain.github.io/
Code: https://github.com/speechbrain/speechbrain/
HuggingFace: https://huggingface.co/speechbrain/

speechbrain/sepformer_rescuespeech

SepFormer trained on RescueSpeech for speech enhancement (16k sampling frequency)

Install SpeechBrain

Perform speech enhancement on your own audio file

Inference on GPU

Limitations

Referencing SpeechBrain

Referencing SepFormer

Referencing RescueSpeech

About SpeechBrain

speechbrain/
sepformer_rescuespeech