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arXiv · 2110.04621

Universal Paralinguistic Speech Representations Using Self-Supervised Conformers

Joel Shor·Aren Jansen·Wei Han·Daniel Park·Yu Zhang
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Abstract

Many speech applications require understanding aspects beyond the words being spoken, such as recognizing emotion, detecting whether the speaker is wearing a mask, or distinguishing real from synthetic speech. In this work, we introduce a new state-of-the-art paralinguistic representation derived from large-scale, fully self-supervised training of a 600M+ parameter Conformer-based architecture. We benchmark on a diverse set of speech tasks and demonstrate that simple linear classifiers trained on top of our time-averaged representation outperform nearly all previous results, in some cases by large margins. Our analyses of context-window size demonstrate that, surprisingly, 2 second context-windows achieve 96\% the performance of the Conformers that use the full long-term context on 7 out of 9 tasks. Furthermore, while the best per-task representations are extracted internally in the network, stable performance across several layers allows a single universal representation to reach near optimal performance on all tasks.

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Joel Shor, Aren Jansen, Wei Han, Daniel Park, Yu Zhang. 2021-10-09. Universal Paralinguistic Speech Representations Using Self-Supervised Conformers. https://doi.org/10.1109/icassp43922.2022.9747197

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