Robust decomposition of inverse filter of channel and prediction error filter of speech signal for dereverberation

Takuya Yoshioka, Takafumi Hikichi, Masato Miyoshi, Hiroshi G. Okuno

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

1 Citation (Scopus)

Abstract

This paper estimates the inverse filter of a signal transmission channel of a room driven by a speech signal. Speech signals are often modeled as piecewise stationary autoregressive (AR) processes. The most fundamental issue is how to estimate a channel's inverse filter separately from the inverse filter of the speech generating AR system, or the prediction error filter (PEF). We first point out that by jointly estimating the channel's inverse filter and the PEF, the channel's inverse is identifiable due to the time varying nature of the PEF. Then, we develop an algorithm that achieves this joint estimation. The notable property of the proposed method is its robustness against deviation from the linear convolutive model of an observed signal caused by, for example, observation noise. Experimental results with simulated and real recorded reverberant signals showed the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationEuropean Signal Processing Conference
Publication statusPublished - 2006
Externally publishedYes
Event14th European Signal Processing Conference, EUSIPCO 2006 - Florence, Italy
Duration: 2006 Sep 42006 Sep 8

Other

Other14th European Signal Processing Conference, EUSIPCO 2006
CountryItaly
CityFlorence
Period06/9/406/9/8

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ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Yoshioka, T., Hikichi, T., Miyoshi, M., & Okuno, H. G. (2006). Robust decomposition of inverse filter of channel and prediction error filter of speech signal for dereverberation. In European Signal Processing Conference

Robust decomposition of inverse filter of channel and prediction error filter of speech signal for dereverberation. / Yoshioka, Takuya; Hikichi, Takafumi; Miyoshi, Masato; Okuno, Hiroshi G.

European Signal Processing Conference. 2006.

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

Yoshioka, T, Hikichi, T, Miyoshi, M & Okuno, HG 2006, Robust decomposition of inverse filter of channel and prediction error filter of speech signal for dereverberation. in European Signal Processing Conference. 14th European Signal Processing Conference, EUSIPCO 2006, Florence, Italy, 06/9/4.
Yoshioka, Takuya ; Hikichi, Takafumi ; Miyoshi, Masato ; Okuno, Hiroshi G. / Robust decomposition of inverse filter of channel and prediction error filter of speech signal for dereverberation. European Signal Processing Conference. 2006.
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