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        <title>Impact of Microphone position Measurement Error on Multi Channel Distant Speech Recognition &amp; Intelligibility</title>
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    <abstract>It was shown in (Raikar et al., 2020) that the measurement error in the microphone position affected the room impulse response (RIR) which in turn affected the single channel speech recognition. In this paper, we ex-tend this to study the more complex and realistic scenario of multi channel distant speech recognition. Specifically we simulate m speakers in a given room with n microphones speaking without overlap. Then channel audio is beamformed and passed through a speech to text (s2t) engine. We compare the s2t accuracy when the microphone locations are known exactly (ground truth) with the s2t accuracy when there is a measurement error in the location of the microphone. We report the performance of an end-to-end s2t on beamformed input in terms of character error rate (CER) and and also speech intelligibility and quality in terms of STOI and PESQ respectively.</abstract>
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%0 Conference Proceedings
%T Impact of Microphone position Measurement Error on Multi Channel Distant Speech Recognition & Intelligibility
%A Nathwani, Karan
%A Kopparapu, Sunil Kumar
%Y Bandyopadhyay, Sivaji
%Y Devi, Sobha Lalitha
%Y Bhattacharyya, Pushpak
%S Proceedings of the 18th International Conference on Natural Language Processing (ICON)
%D 2021
%8 December
%I NLP Association of India (NLPAI)
%C National Institute of Technology Silchar, Silchar, India
%F nathwani-kopparapu-2021-impact
%X It was shown in (Raikar et al., 2020) that the measurement error in the microphone position affected the room impulse response (RIR) which in turn affected the single channel speech recognition. In this paper, we ex-tend this to study the more complex and realistic scenario of multi channel distant speech recognition. Specifically we simulate m speakers in a given room with n microphones speaking without overlap. Then channel audio is beamformed and passed through a speech to text (s2t) engine. We compare the s2t accuracy when the microphone locations are known exactly (ground truth) with the s2t accuracy when there is a measurement error in the location of the microphone. We report the performance of an end-to-end s2t on beamformed input in terms of character error rate (CER) and and also speech intelligibility and quality in terms of STOI and PESQ respectively.
%U https://aclanthology.org/2021.icon-main.23
%P 186-194

Markdown (Informal)

[Impact of Microphone position Measurement Error on Multi Channel Distant Speech Recognition & Intelligibility](https://aclanthology.org/2021.icon-main.23) (Nathwani & Kopparapu, ICON 2021)

• Impact of Microphone position Measurement Error on Multi Channel Distant Speech Recognition & Intelligibility (Nathwani & Kopparapu, ICON 2021)

ACL

• Karan Nathwani and Sunil Kumar Kopparapu. 2021. Impact of Microphone position Measurement Error on Multi Channel Distant Speech Recognition & Intelligibility. In Proceedings of the 18th International Conference on Natural Language Processing (ICON), pages 186–194, National Institute of Technology Silchar, Silchar, India. NLP Association of India (NLPAI).