Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Perceptual Distortion Maps for Room Reverberation

Authors: Mourjopoulos, John; Zarouchas, Thomas

AES Convention 122 · Paper 7093 · May 2007

Abstract

From reverberated audio signals and using as reference the input (anechoic) audio, a number of distortion maps are extracted indicating how room reverberation distorts in time-frequency scales, perceived features in the received signal. These maps are simplified to describe the monaural time-frequency / level distortions and the distortion of the spatial cues (i.e., inter-channel cues and coherence) which are very important for sound localization in a reverberant environment. Such maps here are studied as functions of room parameters (size, acoustics, distance, etc), as well as due to input signal properties. Overall perceptual distortion ratings are produced and reverberation-resilient signal features are extracted. These tests are also compared to results of subjective evaluation for the relevant features in the reverberant signals.

Details

Published in
AES Convention 122
AES Convention
122
Paper number
7093
Publication date
May 6, 2007
Session subject
Spatial Audio Perception and Processing
Affiliation
University of Patras (See document for exact affiliation information.)
Type
Convention Paper