RESEARCH

NLP

SkinAugment: Auto-Encoding Speaker Conversions for Automatic Speech Translation

April 30, 2020

Abstract

We propose autoencoding speaker conversion for training data augmentation in automatic speech translation. This technique directly transforms an audio sequence, resulting in audio synthesized to resemble another speaker's voice. Our method compares favorably to SpecAugment on English→French and English→Romanian automatic speech translation (AST) tasks as well as on a low-resource English automatic speech recognition (ASR) task. Further, in ablations, we show the benefits of both quantity and diversity in augmented data. Finally, we show that we can combine our approach with augmentation by machine-translated transcripts to obtain a competitive end-to-end AST model that outperforms a very strong cascade model on an English→French AST task. Our method is sufficiently general that it can be applied to other speech generation and analysis tasks.

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AUTHORS

Written by

Liezl Puzon

Juan Pino

Arya McCarthy

Publisher

ICASSP

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