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Please use this identifier to cite or link to this item: https://hdl.handle.net/10119/7752

Title: A Study on the Blind Estimation of Reverberation Time in Room Acoustics
Authors: Hiramatsu, Sota
Unoki, Masashi
Issue Date: 2008-07
Publisher: 信号処理学会
Magazine name: Journal of Signal Processing
Volume: 12
Number: 4
Start page: 323
End page: 326
Abstract: This paper proposes a method for blindly estimating the reverberation time based on the concept of the modulation transfer function (MTF). This method estimates the reverberation time (RT) from the reverberant signal without measuring room impulse response (IR). In the MTF-based speech dereverberation method, proposed by the authors, a process for estimating a parameter related to the RT was incorporated. In this paper, we investigate whether the estimation process, previously presented by authors, works as a blind estimation method and point out a problem with their method. We then propose a new method for blindly estimating the RT to resolve the problem. In the proposed method, the RT is correctly estimated by inverse-MTF filtering in the modulation frequency domain. We evaluated the proposed method with their method using both artificial MTF-based signals and speech signals to show how well the proposed method correctly estimates the RT in artificial reverberant environments. Results suggested that the proposed method correctly estimates RTs from the observed reverberant signals.
Rights: Copyright (C) 2008 信号処理学会. Sota Hiramatsu and Masashi Unoki, Journal of Signal Processing, 12(4), 2008, 323-326.
URI: https://hdl.handle.net/10119/7752
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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