Text Generation with Speech Synthesis for ASR Data Augmentation

• URL: http://arxiv.org/abs/2305.16333v1
• Date: Mon, 22 May 2023 18:45:20 GMT
• Title: Text Generation with Speech Synthesis for ASR Data Augmentation
• Authors: Zhuangqun Huang, Gil Keren, Ziran Jiang, Shashank Jain, David Goss-Grubbs, Nelson Cheng, Farnaz Abtahi, Duc Le, David Zhang, Antony D'Avirro, Ethan Campbell-Taylor, Jessie Salas, Irina-Elena Veliche, Xi Chen
• Abstract summary: We explore text augmentation for Automatic Speech Recognition (ASR) using large-scale pre-trained neural networks. We find that neural models achieve 9%-15% relative WER improvement and outperform traditional methods.
• Score: 17.348764629839636
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Aiming at reducing the reliance on expensive human annotations, data synthesis for Automatic Speech Recognition (ASR) has remained an active area of research. While prior work mainly focuses on synthetic speech generation for ASR data augmentation, its combination with text generation methods is considerably less explored. In this work, we explore text augmentation for ASR using large-scale pre-trained neural networks, and systematically compare those to traditional text augmentation methods. The generated synthetic texts are then converted to synthetic speech using a text-to-speech (TTS) system and added to the ASR training data. In experiments conducted on three datasets, we find that neural models achieve 9%-15% relative WER improvement and outperform traditional methods. We conclude that text augmentation, particularly through modern neural approaches, is a viable tool for improving the accuracy of ASR systems.

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