Autoregressive Co-Training for Learning Discrete Speech Representations

Sung-Lin Yeh; Hao Tang

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arXiv · 2203.15840

Autoregressive Co-Training for Learning Discrete Speech Representations

Sung-Lin Yeh·Hao Tang

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Abstract

While several self-supervised approaches for learning discrete speech representation have been proposed, it is unclear how these seemingly similar approaches relate to each other. In this paper, we consider a generative model with discrete latent variables that learns a discrete representation for speech. The objective of learning the generative model is formulated as information-theoretic co-training. Besides the wide generality, the objective can be optimized with several approaches, subsuming HuBERT-like training and vector quantization for learning discrete representation. Empirically, we find that the proposed approach learns discrete representation that is highly correlated with phonetic units, more correlated than HuBERT-like training and vector quantization.

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Sung-Lin Yeh, Hao Tang. 2022-03-29. Autoregressive Co-Training for Learning Discrete Speech Representations. https://arxiv.org/abs/2203.15840

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