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Fig. 1.Incorporating language detection end-to-end improves automatic transcription of code-switching speech.This can make Conversational Agents more accurate and efficient in understanding the user's needs.Human communication in multilingual communities often leads to code-switching, where individuals seamlessly alternate between two or more languages in their daily interactions.While this phenomenon has been increasingly prevalent thanks to linguistic globalization, it presents challenges for Automatic Speech Recognition (ASR) systems since they are designed with the assumption of transcribing a single language at a time.In this work, we propose a simple yet unexplored approach to tackle this challenge by fine-tuning the Whisper pre-trained model jointly on language identification (LID) and transcription tasks through the introduction of an auxiliary LID loss term.Our results show significant improvements in transcription errors, ranging between 14 and 36 percentage points of difference.Ultimately, our work opens a new direction for research on code-switching speech, offering an opportunity to enhance current capabilities of conversational agents.
Hillah et al. (Sun,) studied this question.