Introduction

This repository contains my unofficial reimplementation of the standard ECAPA-TDNN, which is the speaker recognition in VoxCeleb2 dataset.

This repository is modified based on voxceleb_trainer.

Best Performance in this project (with AS-norm)

Dataset	Vox1_O	Vox1_E	Vox1_H
EER	0.86	1.18	2.17
minDCF	0.0686	0.0765	0.1295

Notice, this result is in the Vox1_O clean list, for Vox1_O Noise list: EER is 1.00 and minDCF is 0.0713.

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System Description

I have uploaded the system description, please check the Session 3, ECAPA-TDNN SYSTEM.

Dependencies

Note: That is the setting based on my device, you can modify the torch and torchaudio version based on your device.

Start from building the environment

conda create -n ECAPA python=3.7.9 anaconda
conda activate ECAPA
pip install -r requirements.txt

Start from the existing environment

pip install -r requirements.txt

Data preparation

Please follow the official code to perpare your VoxCeleb2 dataset from the 'Data preparation' part in this repository.

Dataset for training usage:

1. VoxCeleb2 training set;

2. MUSAN dataset;

3. RIR dataset.

Dataset for evaluation:

1. VoxCeleb1 test set for Vox1_O

2. VoxCeleb1 train set for Vox1_E and Vox1_H (Optional)

Training

Then you can change the data path in the trainECAPAModel.py. Train ECAPA-TDNN model end-to-end by using:

python trainECAPAModel.py --save_path exps/exp1 

Every test_step epoches, system will be evaluated in Vox1_O set and print the EER.

The result will be saved in exps/exp1/score.txt. The model will saved in exps/exp1/model

In my case, I trained 80 epoches in one 3090 GPU. Each epoch takes 37 mins, the total training time is about 48 hours.

Pretrained model

Our pretrained model performs EER: 0.96 in Vox1_O set without AS-norm, you can check it by using:

python trainECAPAModel.py --eval --initial_model exps/pretrain.model

With AS-norm, this system performs EER: 0.86. We will not update this code recently since no enough time for this work. I suggest you the following paper if you want to add AS-norm or other norm methods:

Matejka, Pavel, et al. "Analysis of Score Normalization in Multilingual Speaker Recognition." INTERSPEECH. 2017.

We also update the score.txt file in exps/pretrain_score.txt, it contains the training loss, training acc and EER in Vox1_O in each epoch for your reference.

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Reference

Original ECAPA-TDNN paper

@inproceedings{desplanques2020ecapa,
  title={{ECAPA-TDNN: Emphasized Channel Attention, propagation and aggregation in TDNN based speaker verification}},
  author={Desplanques, Brecht and Thienpondt, Jenthe and Demuynck, Kris},
  booktitle={Interspeech 2020},
  pages={3830--3834},
  year={2020}
}

Our reimplement report

@article{das2021hlt,
  title={HLT-NUS SUBMISSION FOR 2020 NIST Conversational Telephone Speech SRE},
  author={Das, Rohan Kumar and Tao, Ruijie and Li, Haizhou},
  journal={arXiv preprint arXiv:2111.06671},
  year={2021}
}

VoxCeleb_trainer paper

@inproceedings{chung2020in,
  title={In defence of metric learning for speaker recognition},
  author={Chung, Joon Son and Huh, Jaesung and Mun, Seongkyu and Lee, Minjae and Heo, Hee Soo and Choe, Soyeon and Ham, Chiheon and Jung, Sunghwan and Lee, Bong-Jin and Han, Icksang},
  booktitle={Interspeech},
  year={2020}
}

Acknowledge

We study many useful projects in our codeing process, which includes:

clovaai/voxceleb_trainer.

lawlict/ECAPA-TDNN.

speechbrain/speechbrain

ranchlai/speaker-verification

Thanks for these authors to open source their code!

Notes

If you meet the problems about this repository, Please ask me from the 'issue' part in Github (using English) instead of sending the messages to me from bilibili, so others can also benifit from it. Thanks for your understanding!

If you improve the result based on this repository by some methods, please let me know. Thanks!