Acoustic scene analysis using estimated impulse responses

Author

Larsen, Erik ; Schmitz, Chris D. ; Lansing, Charissa R. ; O´Brien, William D., Jr. ; Wheeler, Bruce C. ; Feng, Albert S.

Author_Institution

Beckman Inst. for Adv. Sci. & Techn., Illinois Univ., Urbana, IL, USA

Volume

1

fYear

2003

fDate

9-12 Nov. 2003

Firstpage

725

Abstract

Pre-processing for hearing aids, such as adaptive beamforming, is sensitive to characteristics of the acoustic environment, in particular, reverberation. We conjecture that knowledge of the acoustic environment can aid selection of an optimal signal processing strategy. In this paper we present a method for estimation of direct-to-reverberant energy ratio from partial room responses to an impulsive sound at one receiver location, and of source distance, average absorption, reverberation time, and room volume as intermediate results.

Keywords

acoustic signal processing; array signal processing; hearing aids; medical signal processing; reverberation; speech intelligibility; acoustic scene analysis; adaptive beamforming; estimated impulse responses; hearing aids; optimal signal processing strategy; reverberation; speech intelligibility; Absorption; Acoustic noise; Acoustic reflection; Auditory system; Delay; Image analysis; Microphones; Reverberation; Signal processing; Speech enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on

Print_ISBN

0-7803-8104-1

Type

conf

DOI

10.1109/ACSSC.2003.1292009

Filename

1292009