Applying Virtual Microphones to Triangular Microphone Array in in-Car Communication

Hanako Segawa, Riki Takahashi, Ryoga Jinzai, Shoji Makino, Takeshi Yamada

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We have evaluated the application of the wavelength-proportional arrangement of virtual microphones (WPVM) to a triangular microphone array in a real car environment. Beamforming is effective for speech enhancement in in-car communication. However, it is difficult to install a sufficient number of microphones for beamforming in a car. In this paper, we propose a virtual microphone technique that increases the number of microphones virtually to achieve high speech enhancement performance with a small number of microphones in a car. We applied the virtual microphone technique to a triangular microphone array in a car and evaluated the adaptive beamforming performance. As a result, the WPVM was shown to be effective for improving the performance of speech enhancement in a car.

Original languageEnglish
Title of host publication2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages421-425
Number of pages5
ISBN (Electronic)9789881476883
Publication statusPublished - 2020 Dec 7
Externally publishedYes
Event2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020 - Virtual, Auckland, New Zealand
Duration: 2020 Dec 72020 Dec 10

Publication series

Name2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020 - Proceedings

Conference

Conference2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020
CountryNew Zealand
CityVirtual, Auckland
Period20/12/720/12/10

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition
  • Hardware and Architecture
  • Signal Processing
  • Decision Sciences (miscellaneous)
  • Instrumentation

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