This paper reviews 1) variations of room acoustic transfer functions due to the change of room temperature and 2) the compensation method using a time axis scaling method. It is shown that a slight change of room temperature is a dominant factor for the variations of room impulse response. It is also shown that the compensation method applied to an inverse filtering-based dereverberation approach improves the intelligibility and speech recognition rates dramatically.

Authors: Kajita, Shoji; Takeda, Kazuyai; Itakura, Fumitada
Affiliation: Nagoya University, Chikusa-ku, Nagoya, Japan
AES Convention: 107 (September 1999) Paper Number: 5004
Publication Date: September 1, 1999
Subject: Room Acoustics

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