Underdetermined BSS with multichannel complex NMF assuming W-disjoint orthogonality of source

Kazuma Takeda, Hirokazu Kameoka, Hiroshi Sawada, Shoko Araki, Shigeki Miyabe, Takeshi Yamada, Shoji Makino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Abstract

This paper presents a new method for underdetermined Blind Source Separation (BSS), based on a concept called multichannel complex non-negative matrix factorization (NMF). The method assumes (1) that the time-frequency representations of sources have disjoint support (W-disjoint orthogonality of sources), and (2) that each source is modeled as a superposition of components whose amplitudes vary over time coherently across all frequencies (amplitude coherence of frequency components) in order to jointly solve the indeterminacy involved in the frequency domain underdetermined BSS problem. We confirmed experimentally that the present method performed reasonably well in terms of the signal-to-interference ratio when the mixing process was known.

Original languageEnglish
Title of host publicationTENCON 2011 - 2011 IEEE Region 10 Conference
Subtitle of host publicationTrends and Development in Converging Technology Towards 2020
Pages413-416
Number of pages4
DOIs
Publication statusPublished - 2011
Externally publishedYes
Event2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020, TENCON 2011 - Bali, Indonesia
Duration: 2011 Nov 212011 Nov 24

Publication series

NameIEEE Region 10 Annual International Conference, Proceedings/TENCON

Conference

Conference2011 IEEE Region 10 Conference: Trends and Development in Converging Technology Towards 2020, TENCON 2011
Country/TerritoryIndonesia
CityBali
Period11/11/2111/11/24

Keywords

  • Expectation-maximization (EM) algorithm
  • multichannel audio
  • non-negative matrix factorization(NMF)
  • Underdetermined blind source separation(BSS)
  • W-disjoint orthogonality(W-DO)

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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