TY - GEN
T1 - Applying Virtual Microphones to Triangular Microphone Array in in-Car Communication
AU - Segawa, Hanako
AU - Takahashi, Riki
AU - Jinzai, Ryoga
AU - Makino, Shoji
AU - Yamada, Takeshi
N1 - Funding Information:
V. ACKNOWLEDGMENT This work was supported by the Japan Society for the Promotion of Science (JSPS) KAKENHI through a Grant-in-Aid for Scientific Research under Grants 19H04131, and the Strategic Core Technology Advancement Program (Supporting Industry Program).
Publisher Copyright:
© 2020 APSIPA.
PY - 2020/12/7
Y1 - 2020/12/7
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:85100927799
T3 - 2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020 - Proceedings
SP - 421
EP - 425
BT - 2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2020
Y2 - 7 December 2020 through 10 December 2020
ER -