Acoustic scene analysis using estimated impulse responses
Erik Larsen, Christopher Schmitz, Charissa R. Lansing, William D. O’Brien, Bruce C. Wheeler, A. S. Feng · 2004
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.