Text Injection for Capitalization and Turn-Taking Prediction in Speech Models

• URL: http://arxiv.org/abs/2308.07395v1
• Date: Mon, 14 Aug 2023 18:28:04 GMT
• Title: Text Injection for Capitalization and Turn-Taking Prediction in Speech Models
• Authors: Shaan Bijwadia, Shuo-yiin Chang, Weiran Wang, Zhong Meng, Hao Zhang, Tara N. Sainath
• Abstract summary: This study examines the use of text injection for auxiliary tasks, which are the non-ASR tasks often performed by an E2E model. We show results demonstrating that our text injection method boosts capitalization performance for long-tail data.
• Score: 45.94388391693112
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Text injection for automatic speech recognition (ASR), wherein unpaired text-only data is used to supplement paired audio-text data, has shown promising improvements for word error rate. This study examines the use of text injection for auxiliary tasks, which are the non-ASR tasks often performed by an E2E model. In this work, we use joint end-to-end and internal language model training (JEIT) as our text injection algorithm to train an ASR model which performs two auxiliary tasks. The first is capitalization, which is a de-normalization task. The second is turn-taking prediction, which attempts to identify whether a user has completed their conversation turn in a digital assistant interaction. We show results demonstrating that our text injection method boosts capitalization performance for long-tail data, and improves turn-taking detection recall.

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