Signal processing apparatus, signal processing method, and program

作者: Atsuo Hiroe

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摘要: A signal processing apparatus includes: a learning unit that finds separating matrix for mixed signals in which outputs from plurality of sound sources are mixed, by process applies ICA (Independent Component Analysis) to observed including the signals; separation separate and generate separated corresponding each sources; source direction estimating computes generated signals. The calculates cross-covariance matrices between time segments time-frequency domain, phase differences elements matrices, applying computed differences.

参考文章(47)
Mitsunori Mizumachi, 光徳 水町, フランク ガーピン スーン, K Soong Frank, Satoru Nakamura, セバスチャン ガスニエー, Sebastian Gasuniee, 哲 中村, System for estimating sound source direction, apparatus for estimating time delay of signal, and computer program ,(2003)
Tani Yatsuhiro, Takase Satoshi, PRODUCTION OF CELLULAR SHEET CONVERTED INTO ELECTRET ,(1991)
Saruwatari Hiroshi, Morita Koji, Mori Yasumitsu, Hiekata Takayuki, DEVICE, PROGRAM, AND METHOD FOR SEPARATING SOUND SOURCE ,(2007)
Owaki Masanao, Nakajima Junji, Yamashita Takahiro, Zaima Takeshi, Asai Yuji, SEPARATION METHOD OF A PLURALITY OF SOUND SOURCES ,(2007)
Noboru Murata, Shiro Ikeda, An on-line algorithm for blind source separation on speech signals Proceedings of 1998 International Symposium on Nonlinear Theory and its Application(NOLTA'98). ,vol. 3, pp. 923- 926 ,(1998)
Takashi Kyono, Yusuke Yoshizumi, Masaki c, Group III nitride semiconductor light-emitting device ,(2008)
Jussi Virolainen, Ari Lakaniemi, Enhanced error concealment for spatial audio ,(2002)