Improved Long-Form Speech Recognition by Jointly Modeling the Primary and Non-primary Speakers

• URL: http://arxiv.org/abs/2312.11123v1
• Date: Mon, 18 Dec 2023 11:47:39 GMT
• Title: Improved Long-Form Speech Recognition by Jointly Modeling the Primary and Non-primary Speakers
• Authors: Guru Prakash Arumugam, Shuo-yiin Chang, Tara N. Sainath, Rohit Prabhavalkar, Quan Wang, Shaan Bijwadia
• Abstract summary: We introduce a novel technique to simultaneously model different groups of speakers in the audio along with the standard transcript tokens. Speakers are grouped as primary and non-primary, which connects the application domains. This improved model neither needs any additional training data nor incurs additional training or inference cost.
• Score: 35.32552447347255
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: ASR models often suffer from a long-form deletion problem where the model predicts sequential blanks instead of words when transcribing a lengthy audio (in the order of minutes or hours). From the perspective of a user or downstream system consuming the ASR results, this behavior can be perceived as the model "being stuck", and potentially make the product hard to use. One of the culprits for long-form deletion is training-test data mismatch, which can happen even when the model is trained on diverse and large-scale data collected from multiple application domains. In this work, we introduce a novel technique to simultaneously model different groups of speakers in the audio along with the standard transcript tokens. Speakers are grouped as primary and non-primary, which connects the application domains and significantly alleviates the long-form deletion problem. This improved model neither needs any additional training data nor incurs additional training or inference cost.

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