The acoustic information extraction of the indoor impulse response by multiresolution analysis
Wakako Tanaka, Yong Tang, Toru Itakura, Hideo Shibayama · The Journal of the Acoustical Society of America · 2006
The impulse response is divided into approximation and detail components by the multiresolution analysis. The correlations between the early sound and reflected sounds are estimated respectively for the impulse response and the approximate signal. The approximate signal was calculated as a function of level of the multiresolution analysis. The correlation coefficient of these correlations is over 0.7 under level three. We evaluate the differences of these correlations from the listening test.