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Continuous Speech Separation with Conformer

2020-08-13 09:36:05
Sanyuan Chen, Yu Wu, Zhuo Chen, Jinyu Li, Chengyi Wang, Shujie Liu, Ming Zhou
arXiv_CL
         
Abstract

Continuous speech separation plays a vital role in complicated speech related tasks such as conversation transcription. The separation model extracts a single speaker signal from a mixed speech. In this paper, we use transformer and conformer in lieu of recurrent neural networks in the separation system, as we believe capturing global information with the self-attention based method is crucial for the speech separation. Evaluating on the LibriCSS dataset, the conformer separation model achieves state of the art results, with a relative 23.5% word error rate (WER) reduction from bi-directional LSTM (BLSTM) in the utterance-wise evaluation and a 15.4% WER reduction in the continuous evaluation.

Abstract (translated)

URL

https://arxiv.org/abs/2008.05773

PDF

https://arxiv.org/pdf/2008.05773.pdf

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