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Convention Paper

A Simple, Robust Measure of Reverberation Echo Density

Authors: Abel, Jonathan S.; Huang, Patty

AES Convention 121 · Paper 6985 · October 2006

Abstract

A simple, robust method for measuring echo density from a reverberation impulse response is presented. Based on the property that a reverberant field takes on a Gaussian distribution once an acoustic space is fully mixed, the measure counts samples lying outside a standard deviation in a given impulse response window and normalizes by that expected for Gaussian noise. The measure is insensitive to equalization and level, and is seen to perform well on simulated data, artificial reverberation, and measurements of room impulse responses. Listening tests indicate a correlation between echo density measured in this way and perceived temporal quality or texture of the reverberation.

Details

Published in
AES Convention 121
AES Convention
121
Paper number
6985
Publication date
October 6, 2006
Session subject
Signal Processing
Affiliation
CCRMA, Stanford University; Universal Audio, Inc. (See document for exact affiliation information.)
Type
Convention Paper