Study of optical-based speech acquisition system using vibration signals from speakers' medical masks

Yu Min Lin, Ji Yan Han, Wei Zhong Zheng, Yi Chieh Lin, Cheng Hung Lin, Ying Hui Lai*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Medical masks have become necessary of late because of the COVID-19 outbreak; however, they tend to attenuate the energy of speech signals and affect speech quality. Therefore, this study proposes an optical-based microphone approach to obtain speech signals from speakers' medical masks. Experimental results showed that the optical-based microphone approach achieved better performance (85.61%) than the two baseline approaches, namely, omnidirectional (24.17%) and directional microphones (31.65%), in the case of long-distance speech and background noise. The results suggest that the optical-based microphone method is a promising approach for acquiring speech from a medical mask.

Original languageEnglish
Article number055202
JournalJASA Express Letters
Volume2
Issue number5
DOIs
Publication statusPublished - 2022 May 1

ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Music
  • Arts and Humanities (miscellaneous)

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