Selective Listening Point Audio Based on Blind Signal Separation and Stereophonic Technology

• NIWA Kenta

  Graduate School of Information Science, Nagoya University

• NISHINO Takanori

  Center for Information Media Studies, Nagoya University

• TAKEDA Kazuya

  Graduate School of Information Science, Nagoya University

抄録

A sound field reproduction method is proposed that uses blind source separation and a head-related transfer function. In the proposed system, multichannel acoustic signals captured at distant microphones are decomposed to a set of location/signal pairs of virtual sound sources based on frequency-domain independent component analysis. After estimating the locations and the signals of the virtual sources by convolving the controlled acoustic transfer functions with each signal, the spatial sound is constructed at the selected point. In experiments, a sound field made by six sound sources is captured using 48 distant microphones and decomposed into sets of virtual sound sources. Since subjective evaluation shows no significant difference between natural and reconstructed sound when six virtual sources and are used, the effectiveness of the decomposing algorithm as well as the virtual source representation are confirmed.

収録刊行物

• IEICE Transactions on Information and Systems

  IEICE Transactions on Information and Systems E92-D (3), 469-476, 2009

  一般社団法人 電子情報通信学会

キーワード

• acoustic field representation
• blind source separation
• frequency-domain independent component analysis (FD-ICA)
• spatial grouping

詳細情報

• CRID: 1390001204377400064
• NII論文ID: 10026808032
• NII書誌ID: AA10826272
• DOI: 10.1587/transinf.e92.d.469
• ISSN: 17451361
• ISSN: 09168532
• HANDLE: 2237/15055
• Web Site: https://nagoya.repo.nii.ac.jp/records/13160
• Web Site: http://www.jstage.jst.go.jp/article/transinf/E92.D/3/E92.D_3_469/_pdf
• 本文言語コード: en
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