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Influence of Accented Speech in Automatic Speech Recognition: A Case Study on Assamese L1 Speakers Speaking Code Switched Hindi-English

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Speech and Computer (SPECOM 2022)

Abstract

The goal of this work is to show the influence of accented speech on state-of-the-art speech-to-text (S2T) systems. In the current study, Assamese accented Hindi-English (AAHE) code-switched speech samples and Native Hindi-English (NHE) code-switched speech samples are subjected to four commercial S2T systems. The results of this study found that the word error rate averaged across the four systems is found to be 27.33% and 38.35% for the NHE and AAHE groups, respectively. This performance gap is mainly attributed to substitution errors. On further analysis, it was found that those errors resulted from the distinct phonetic and phonological properties of the Assamese language. Thus, there is a scope for accent adaptation even in concurrent S2T systems supporting Indian languages.

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Notes

  1. 1.

    https://sites.google.com/view/testoffluency/home.

  2. 2.

    http://progfruits.blogspot.com/2014/02/word-error-rate-wer-and-word.html.

  3. 3.

    https://cloud.ibm.com/docs/speech-to-text?topic=speech-to-text-models-ng.

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Correspondence to Joyshree Chakraborty .

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Chakraborty, J., Sinha, R., Sarmah, P. (2022). Influence of Accented Speech in Automatic Speech Recognition: A Case Study on Assamese L1 Speakers Speaking Code Switched Hindi-English. In: Prasanna, S.R.M., Karpov, A., Samudravijaya, K., Agrawal, S.S. (eds) Speech and Computer. SPECOM 2022. Lecture Notes in Computer Science(), vol 13721. Springer, Cham. https://doi.org/10.1007/978-3-031-20980-2_9

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  • DOI: https://doi.org/10.1007/978-3-031-20980-2_9

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