The Tag-Team Approach: Leveraging CLS and Language Tagging for Enhancing Multilingual ASR

• URL: http://arxiv.org/abs/2305.19584v1
• Date: Wed, 31 May 2023 06:09:11 GMT
• Title: The Tag-Team Approach: Leveraging CLS and Language Tagging for Enhancing Multilingual ASR
• Authors: Kaousheik Jayakumar, Vrunda N. Sukhadia, A Arunkumar, S. Umesh
• Abstract summary: Building a multilingual Automated Speech Recognition system in a linguistically diverse country like India can be a challenging task. This problem can be solved by exploiting the fact that many of these languages are phonetically similar. New approaches are explored and compared to improve the performance of CLS based multilingual ASR model.
• Score: 0.2676349883103404
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Building a multilingual Automated Speech Recognition (ASR) system in a linguistically diverse country like India can be a challenging task due to the differences in scripts and the limited availability of speech data. This problem can be solved by exploiting the fact that many of these languages are phonetically similar. These languages can be converted into a Common Label Set (CLS) by mapping similar sounds to common labels. In this paper, new approaches are explored and compared to improve the performance of CLS based multilingual ASR model. Specific language information is infused in the ASR model by giving Language ID or using CLS to Native script converter on top of the CLS Multilingual model. These methods give a significant improvement in Word Error Rate (WER) compared to the CLS baseline. These methods are further tried on out-of-distribution data to check their robustness.

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