Title
A system approach to residual echo suppression in robust hands-free teleconferencing
Abstract
This paper presents a system approach to the residual echo suppression (RES) problem in a noisy acoustic environment. We propose a method that takes advantage of our existing robust acoustic echo cancellation system in order to obtain a residual echo estimate that closely resembles the true, noise-free residual echo. To achieve improved RES during strong near-end interference (e.g., double talk), a psychoacoustic postfilter is also used. The simulation results show that our RES based on the system approach outperforms a conventional estimation method. Comparing the postfiltered output to the unprocessed one indicates that our proposed RES approach can raise the PESQ score by more than half a point.
Year
DOI
Venue
2011
10.1109/ICASSP.2011.5946436
Acoustics, Speech and Signal Processing
Keywords
Field
DocType
acoustic signal processing,echo suppression,estimation theory,filtering theory,interference (signal),teleconferencing,PESQ score,RES problem,conventional estimation method,double talk,noise-free residual echo,noisy acoustic environment,postfiltered output,psychoacoustic postfilter,residual echo estimate,residual echo suppression,robust acoustic echo cancellation system,robust hands-free teleconferencing,strong near-end interference,acoustic echo cancellation,postfiltering,residual echo estimation,residual echo suppression,speech enhancement
Speech enhancement,Residual,Noise measurement,Computer science,Robustness (computer science),Speech recognition,Interference (wave propagation),Estimation theory,Double-talk,PESQ
Conference
ISSN
ISBN
Citations 
1520-6149 E-ISBN : 978-1-4577-0537-3
978-1-4577-0537-3
3
PageRank 
References 
Authors
0.44
5
6
Name
Order
Citations
PageRank
Jason Wung1164.45
Ted S. Wada2376.37
Biing-Hwang Juang33388699.72
Bowon Lee415420.99
Ton Kalker51203140.78
R. W. SCHAFER61506269.98