Separation of Two Sound Sources in the Same Direction by Image Signal Processing

Kenji Ozawa, Yuta Koshimizu, Masanori Morise, Shuichi Sakamoto

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

This paper proposes a novel method to separate a target sound from another noise in the same direction using a microphone array. Four microphones are arranged to focus the target sound, and their outputs are converted to a spatio-temporal sound pressure distribution (STSPD) image. The focused source forms vertical stripes in the image; thus, their two-dimensional fast Fourier transform (2D-FFT) spectral components are localized as the direct current (DC) components along the spatial axis. Meanwhile, a noise signal forms parabola stripes in the STSPD image and their 2D-FFT components are spread into the target spectrum. However, the leaked DC components can be estimated from the other components, and subtracted from the target spectrum. A computational experiment shows that the noise is suppressed by approximately 25 dB, when the positions of the target and noise sources are known.

元の言語English
ホスト出版物のタイトル2018 IEEE 7th Global Conference on Consumer Electronics, GCCE 2018
出版者Institute of Electrical and Electronics Engineers Inc.
ページ663-664
ページ数2
ISBN(電子版)9781538663097
DOI
出版物ステータスPublished - 2018 12 12
イベント7th IEEE Global Conference on Consumer Electronics, GCCE 2018 - Nara, Japan
継続期間: 2018 10 92018 10 12

出版物シリーズ

名前2018 IEEE 7th Global Conference on Consumer Electronics, GCCE 2018

Other

Other7th IEEE Global Conference on Consumer Electronics, GCCE 2018
Japan
Nara
期間18/10/918/10/12

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Instrumentation

フィンガープリント 「Separation of Two Sound Sources in the Same Direction by Image Signal Processing」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル