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Convention Paper

Multi-Channel Dereverberation System Using Modified Correlation-Based Blind Deconvolution and Multi-Microphone Spectral Subtraction

Authors: Jeong, Jae-woong; Lee, Seok-Pil; Park, Young-cheol; Youn, Dae-hee

AES Convention 124 · Paper 7402 · May 2008

Abstract

This paper presents a new multi-channel dereverberation system combining a modified correlation-based blind deconvolution with the multi-microphone spectral subtraction. In the proposed system, we make M combinations of observed signals and apply them to the correlation-based blind deconvolution. The deconvolved signals are then used as inputs to the multi-microphone spectral subtraction. The proposed system estimates the reverberant energy by using both a frame delay and a frequency-dependent weight. Due to accurate estimation of the reverberant energy, the combination of the correlation-based blind deconvolution with the multi-microphone spectral subtraction provides improved dereverberation performance. Performance improvement of the proposed system has been confirmed through experiments.

Details

Published in
AES Convention 124
AES Convention
124
Paper number
7402
Publication date
May 6, 2008
Session subject
Signal Processing, Sound Quality Design
Affiliation
Yonsei University; Korea Electronics Technology Institute (See document for exact affiliation information.)
Type
Convention Paper