Title :
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
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;
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Seventh Asilomar Conference on
Print_ISBN :
0-7803-8104-1
DOI :
10.1109/ACSSC.2003.1292009