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A Brief Overview of Unsupervised Neural Speech Representation Learning

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arxiv 2203.01829 v1 pith:4ILUNGEE submitted 2022-03-01 eess.AS cs.LGcs.SD

A Brief Overview of Unsupervised Neural Speech Representation Learning

classification eess.AS cs.LGcs.SD
keywords speechlearningmodelsrepresentationunsupervisedcategorieslastmethods
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Unsupervised representation learning for speech processing has matured greatly in the last few years. Work in computer vision and natural language processing has paved the way, but speech data offers unique challenges. As a result, methods from other domains rarely translate directly. We review the development of unsupervised representation learning for speech over the last decade. We identify two primary model categories: self-supervised methods and probabilistic latent variable models. We describe the models and develop a comprehensive taxonomy. Finally, we discuss and compare models from the two categories.

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    eess.AS 2025-09 conditional novelty 5.0

    A T5 model predicts SSL-derived discrete speech tokens directly from mixed-script Japanese text, letting a FastSpeech 2 synthesizer produce speech without a grapheme-to-phoneme module.