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Speaker Verification with xvector embeddings on Voxceleb

This repository provides all the necessary tools to extract speaker embeddings with a pretrained TDNN model using SpeechBrain. The system is trained on Voxceleb 1+ Voxceleb2 training data.

For a better experience, we encourage you to learn more about SpeechBrain . The given model performance on Voxceleb1-test set (Cleaned) is:

Release EER(%)
05-03-21 3.2

Pipeline description

This system is composed of a TDNN model coupled with statistical pooling. The system is trained with Categorical Cross-Entropy Loss.

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 .

Compute your speaker embeddings

import torchaudio
from speechbrain.pretrained import EncoderClassifier
classifier = EncoderClassifier.from_hparams(source="speechbrain/spkrec-xvect-voxceleb", savedir="pretrained_models/spkrec-xvect-voxceleb")
signal, fs =torchaudio.load('tests/samples/ASR/spk1_snt1.wav')
embeddings = classifier.encode_batch(signal)

The system is trained with recordings sampled at 16kHz (single channel). The code will automatically normalize your audio (i.e., resampling + mono channel selection) when calling classify_file if needed. Make sure your input tensor is compliant with the expected sampling rate if you use encode_batch and classify_batch .

Inference on GPU

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

Training

The model was trained with SpeechBrain (aa018540). To train it from scratch follows these steps:

  • Clone SpeechBrain:
  • git clone https://github.com/speechbrain/speechbrain/
    
  • Install it:
  • cd speechbrain
    pip install -r requirements.txt
    pip install -e .
    
  • Run Training:
  • cd  recipes/VoxCeleb/SpeakerRec/
    python train_speaker_embeddings.py hparams/train_x_vectors.yaml --data_folder=your_data_folder
    

    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 xvectors
      author    = {David Snyder and
                   Daniel Garcia{-}Romero and
                   Alan McCree and
                   Gregory Sell and
                   Daniel Povey and
                   Sanjeev Khudanpur},
      title     = {Spoken Language Recognition using X-vectors},
      booktitle = {Odyssey 2018},
      pages     = {105--111},
      year      = {2018},
    }
    

    Citing SpeechBrain

    Please, cite SpeechBrain if you use it for your research or business.

    @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}
    }