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ICASSP
2009
IEEE

Complex NMF: A new sparse representation for acoustic signals

10 years 4 months ago
Complex NMF: A new sparse representation for acoustic signals
This paper presents a new sparse representation for acoustic signals which is based on a mixing model defined in the complex-spectrum domain (where additivity holds), and allows us to extract recurrent patterns of magnitude spectra that underlie observed complex spectra and the phase estimates of constituent signals. An efficient iterative algorithm is derived, which reduces to the multiplicative update algorithm for non-negative matrix factorization developed by Lee under a particular condition.
Hirokazu Kameoka, Nobutaka Ono, Kunio Kashino, Shi
Added 21 May 2010
Updated 21 May 2010
Type Conference
Year 2009
Where ICASSP
Authors Hirokazu Kameoka, Nobutaka Ono, Kunio Kashino, Shigeki Sagayama
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