Inter-channel coherence reduction for stereophonic and multichannel acoustic echo cancellation

TF Gaensler, EJ Diethorn - US Patent 9,445,196, 2016 - Google Patents
In an audio system having acoustic echo, incoming audio signals are decorrelated by
applying both phase modulation and amplitude modulation. The resulting decorrelated sig …

Enhancement of residual echo for robust acoustic echo cancellation

TS Wada, BH Juang - IEEE Transactions on Audio, Speech …, 2011 - ieeexplore.ieee.org
This paper examines the technique of using a noise-suppressing nonlinearity in the
adaptive filter error feedback-loop of an acoustic echo canceler (AEC) based on the least …

Decorrelation by resampling in frequency domain for multi-channel acoustic echo cancellation based on residual echo enhancement

TS Wada, J Wung, BH Juang - 2011 IEEE Workshop on …, 2011 - ieeexplore.ieee.org
An inter-channel decorrelation procedure via resampling in the frequency domain for multi-
channel acoustic echo cancellation (MCAEC) based on residual echo enhancement is …

[图书][B] Acoustic echo reduction for multiple loudspeakers and microphones: Complexity reduction and convergence enhancement

ML Valero - 2019 - search.proquest.com
Modern devices such as mobile phones, tablets or smart speakers are commonly equipped
with several loudspeakers and microphones. If, for instance, one employs such a device for …

Inter-channel decorrelation by sub-band resampling in frequency domain

J Wung, TS Wada, BH Juang - 2012 IEEE International …, 2012 - ieeexplore.ieee.org
This paper presents a novel decorrelation procedure by frequency-domain resampling in
sub-bands. The new procedure expands on the idea of resampling in the frequency domain …

Inter-channel decorrelation by sub-band resampling for multi-channel acoustic echo cancellation

J Wung, TS Wada, M Souden… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
An inter-channel decorrelation procedure is highly recommended for multi-channel acoustic
echo cancellation (AEC) to directly assist adaptive filtering algorithms in overcoming the so …

Wave-domain loudspeaker signal decorrelation for system identification in multichannel audio reproduction scenarios

M Schneider, C Huemmer… - 2013 IEEE International …, 2013 - ieeexplore.ieee.org
For applications like acoustic echo cancellation (AEC) or listening room equalization (LRE),
a loudspeaker-enclosure-microphone system (LEMS) must be identified. When using a …

A system approach to acoustic echo cancellation in robust hands-free teleconferencing

J Wung, TS Wada, BH Juang, B Lee… - … IEEE Workshop on …, 2011 - ieeexplore.ieee.org
This paper presents a system approach to the acoustic echo cancellation (AEC) problem in
a noisy acoustic environment. We propose a method that makes use of the estimated near …

Inter-channel decorrelation by resampling via time-domain interpolation filters derived from the time-shifting property

J Wung, TS Wada, F Juang - IWAENC 2012; International …, 2012 - ieeexplore.ieee.org
We have shown previously that decorrelation by resampling (DBR) effectively alleviates the
non-uniqueness problem caused by highly correlated reference signals during multi …

On the performance of the robust acoustic echo cancellation system with decorrelation by sub-band resampling

J Wung, TS Wada, BH Juang - 2013 IEEE International …, 2013 - ieeexplore.ieee.org
This paper examines the effect of inter-channel decorrelation by sub-band resampling (SBR)
on the performance of the robust acoustic echo cancellation (AEC) system based on the …