Smart Speech Segmentation using Acousto-Linguistic Features with look-ahead

• URL: http://arxiv.org/abs/2210.14446v2
• Date: Thu, 27 Oct 2022 05:38:58 GMT
• Title: Smart Speech Segmentation using Acousto-Linguistic Features with look-ahead
• Authors: Piyush Behre, Naveen Parihar, Sharman Tan, Amy Shah, Eva Sharma, Geoffrey Liu, Shuangyu Chang, Hosam Khalil, Chris Basoglu, Sayan Pathak
• Abstract summary: We present a hybrid approach that leverages both acoustic and language information to improve segmentation. On average, our models improve segmentation-F0.5 score by 9.8% over baseline. For the downstream task of machine translation, it improves the translation BLEU score by an average of 1.05 points.
• Score: 3.579111205766969
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Segmentation for continuous Automatic Speech Recognition (ASR) has traditionally used silence timeouts or voice activity detectors (VADs), which are both limited to acoustic features. This segmentation is often overly aggressive, given that people naturally pause to think as they speak. Consequently, segmentation happens mid-sentence, hindering both punctuation and downstream tasks like machine translation for which high-quality segmentation is critical. Model-based segmentation methods that leverage acoustic features are powerful, but without an understanding of the language itself, these approaches are limited. We present a hybrid approach that leverages both acoustic and language information to improve segmentation. Furthermore, we show that including one word as a look-ahead boosts segmentation quality. On average, our models improve segmentation-F0.5 score by 9.8% over baseline. We show that this approach works for multiple languages. For the downstream task of machine translation, it improves the translation BLEU score by an average of 1.05 points.

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