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Real time Implementation of a Blind Beamformer for Subband Speech Enhancement using Kurtosis Maximization

Sällberg, Benny; Swartling, Mikael LU ; Grbic, Nedelko LU and Claesson, Ingvar LU (2006) International Workshop on Acoustic Echo and Noise Control (IWAENC 2003) In International Workshop on Acoustic Echo and Noise Control p.1-4
Abstract
This paper presents a real time implementation of a blind beamformer for subband speech enhancement. The beamformer adaptively
maximizes the statistical kurtosis measure of the beamformer’s
output signal. Speech carries high kurtosis and noise
often exhibit lower kurtosis. Hence, maximization of the output
signal’s kurtosis enhances speech, in general. The implementation
is carried out on a novel framework for real time audio processing
in MATLAB and uses low latency ASIO sound cards.
The implementation is evaluated using recorded signals and the
speech is enhanced approximately 10 dB by the proposed approach
with perceptually low speech distortion.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
International Workshop on Acoustic Echo and Noise Control
pages
4 pages
conference name
International Workshop on Acoustic Echo and Noise Control (IWAENC 2003)
language
English
LU publication?
yes
id
f0d90c55-f156-4259-ab8e-ae864601f43b
alternative location
http://www.iwaenc.org/proceedings/2006/pdf/A31.pdf
date added to LUP
2016-06-23 16:32:14
date last changed
2016-07-18 15:37:13
@misc{f0d90c55-f156-4259-ab8e-ae864601f43b,
  abstract     = {This paper presents a real time implementation of a blind beamformer for subband speech enhancement. The beamformer adaptively<br/>maximizes the statistical kurtosis measure of the beamformer’s<br/>output signal. Speech carries high kurtosis and noise<br/>often exhibit lower kurtosis. Hence, maximization of the output<br/>signal’s kurtosis enhances speech, in general. The implementation<br/>is carried out on a novel framework for real time audio processing<br/>in MATLAB and uses low latency ASIO sound cards.<br/>The implementation is evaluated using recorded signals and the<br/>speech is enhanced approximately 10 dB by the proposed approach<br/>with perceptually low speech distortion.},
  author       = {Sällberg, Benny and Swartling, Mikael and Grbic, Nedelko and Claesson, Ingvar},
  language     = {eng},
  pages        = {1--4},
  series       = {International Workshop on Acoustic Echo and Noise Control},
  title        = {Real time Implementation of a Blind Beamformer for Subband Speech Enhancement using Kurtosis Maximization},
  year         = {2006},
}