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Bibliographic Details
Main Authors: Chaparala, Kaavya, Zarrella, Guido, Fischer, Bruce Torres, Kimura, Larry, Jones, Oiwi Parker
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2404.03073
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Table of Contents:
  • In this paper we address the challenge of improving Automatic Speech Recognition (ASR) for a low-resource language, Hawaiian, by incorporating large amounts of independent text data into an ASR foundation model, Whisper. To do this, we train an external language model (LM) on ~1.5M words of Hawaiian text. We then use the LM to rescore Whisper and compute word error rates (WERs) on a manually curated test set of labeled Hawaiian data. As a baseline, we use Whisper without an external LM. Experimental results reveal a small but significant improvement in WER when ASR outputs are rescored with a Hawaiian LM. The results support leveraging all available data in the development of ASR systems for underrepresented languages.