Separation of multiple sound sources in the same direction by instantaneous spectral estimation

Kenji Ozawa; Kanji Watanabe; Shuichi Sakamoto

doi:10.1109/GCCE50665.2020.9291767

Separation of multiple sound sources in the same direction by instantaneous spectral estimation

Kenji Ozawa, Kanji Watanabe, Shuichi Sakamoto

Human Information Systems Division

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This project aims to separate sound sources in the same direction using a small array of microphones arranged on an arc. When the output pattern of instantaneous sound pressures from the array is regarded as an image, the center of the arc is a singular point because its two-dimensional frequency components are concentrated in the spatial direct current (DC) bin. Based on this property, the noise spectral DC components are estimated by solving simultaneous equations. Computer simulation experiments demonstrated that a 6-cm array achieved a clear separation of three sound sources with the signal-to-distortion ratio of about 20 dB.

Original language	English
Title of host publication	2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	32-33
Number of pages	2
ISBN (Electronic)	9781728198026
DOIs	https://doi.org/10.1109/GCCE50665.2020.9291767
Publication status	Published - 2020 Oct 13
Event	9th IEEE Global Conference on Consumer Electronics, GCCE 2020 - Kobe, Japan Duration: 2020 Oct 13 → 2020 Oct 16

Publication series

Name	2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020

Conference

Conference	9th IEEE Global Conference on Consumer Electronics, GCCE 2020
Country	Japan
City	Kobe
Period	20/10/13 → 20/10/16

Keywords

arc-shaped microphone array
instantaneous spectral estimation
simultaneous equations
spatio-temporal sound pressure distribution image

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering
Media Technology
Instrumentation
Computer Networks and Communications
Computer Vision and Pattern Recognition

Access to Document

10.1109/GCCE50665.2020.9291767

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Ozawa, K., Watanabe, K., & Sakamoto, S. (2020). Separation of multiple sound sources in the same direction by instantaneous spectral estimation. In 2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020 (pp. 32-33). [9291767] (2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/GCCE50665.2020.9291767

Separation of multiple sound sources in the same direction by instantaneous spectral estimation. / Ozawa, Kenji; Watanabe, Kanji; Sakamoto, Shuichi.

2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 32-33 9291767 (2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ozawa, K, Watanabe, K & Sakamoto, S 2020, Separation of multiple sound sources in the same direction by instantaneous spectral estimation. in 2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020., 9291767, 2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020, Institute of Electrical and Electronics Engineers Inc., pp. 32-33, 9th IEEE Global Conference on Consumer Electronics, GCCE 2020, Kobe, Japan, 20/10/13. https://doi.org/10.1109/GCCE50665.2020.9291767

Ozawa K, Watanabe K, Sakamoto S. Separation of multiple sound sources in the same direction by instantaneous spectral estimation. In 2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 32-33. 9291767. (2020 IEEE 9th Global Conference on Consumer Electronics, GCCE 2020). https://doi.org/10.1109/GCCE50665.2020.9291767

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