An acoustic processor and the acoustic treatment method

Japanese Patent JP5942420

B2

In a sound processing apparatus, a matrix factorization unit acquires a non-negative first basis matrix including a plurality of basis vectors that represent spectra of sound components of a first sound source, and acquires an observation matrix that represents time series of a spectrum of a sound signal corresponding to a mixed sound of the first sound source and a second sound source different from the first sound source. The matrix factorization unit generates a first coefficient matrix, a second basis matrix and a second coefficient matrix from the observation matrix by non-negative matrix factorization using the first basis matrix. A sound generation unit generates either of a sound signal according to the first basis matrix and the first coefficient matrix or a sound signal according to the second basis matrix and the second coefficient matrix.

WO/2011/083610	ACOUSTIC CHARACTERISTIC ADJUSTER FOR VEHICLE
WO/2022/059825	CONTROLLER AND SYSTEM COMPRISING SAME
JP2001083999	SPEECH CODING DEVICE, SPEECH DECODING DEVICE AND SPEECH CODING AND DECODING SYSTEM

Kosuke Yagi
Hiroshi Saruwatari
Yu Takahashi

JP2011284075A

June 29, 2016

December 26, 2011

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Yamaha Corporation

G10L21/0208; G10L21/0232

JP2009128906A
JP2005258440A
JP2011133780A
JP2013546018A

US20100254539

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中鹿亘,外2名,基底の反復生成と教師ありNMFを用いた信号解析,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2010年12月13日,Vol.110, No.357,pp.195-200
堀田政二,外1名,Non-negative Matrix Factorizationの初期値の設定法とその応用,電子情報通信学会技術研究報告,日本,社団法人電子情報通信学会,2003年 2月14日,Vol.102, No.652,pp.19-24

Akira Obayashi
Taro Takahashi
Yashiro Hitoshi

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