Two-input two-output speech enhancement with binaural spatial information using a soft decision mask filter

S. Hongo, A. Sasaki, S. Sakamoto, J. Li, Y. Suzuki

Research output: Contribution to journalConference article

Abstract

A two-input two-output speech enhancement method that preserves binaural spatial information in the output is preferred for realizing a comfortable auditory communication system. Such a system benefits from the noise reduction capability provided by signal processing technology, in addition to the binaural processing of the human auditory system. We investigated a two-input two-output speech enhancement method that calculates soft decision mask filters to attenuate a noisy time-frequency bin. The soft decision mask filter is estimated for each direction of arrival (DOA) based on a noise-target ratio calculated using an adaptive filter that cancels the target signal. Results of computer simulations show that the proposed method has superior capabilities for maintaining spatial information in the two-output signals and for segregating the target signal in arbitrary azimuth and elevation DOA.

Original languageEnglish
Pages (from-to)2263-2268
Number of pages6
JournalProceedings - European Conference on Noise Control
Publication statusPublished - 2008 Dec 1
Event7th European Conference on Noise Control 2008, EURONOISE 2008 - Paris, France
Duration: 2008 Jun 292008 Jul 4

ASJC Scopus subject areas

  • Acoustics and Ultrasonics
  • Public Health, Environmental and Occupational Health
  • Building and Construction
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Automotive Engineering
  • Aerospace Engineering

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