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Real-Time DSP Implementation of a Subband Beamforming Algorithm for Dual Microphone Speech Enhancement

Yermeche, Zohra; Sällberg, Benny; Grbic, Nedelko LU and Claesson, Ingvar LU (2007) 2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 In IEEE International Symposium on Circuits and Systems p.353-356
Abstract
A real-time digital signal processor (DSP) based implementation of a subband beamforming algorithm and its evaluation for dual microphone speech enhancement is presented. The algorithm, a calibrated constrained beamformer, is described theoretically and a real-time structure is proposed, including an efficient approach for multichannel data transformation. Measurements show that the battery driven DSP implementation supports 20 h operation-time, with an improved signal-to-noise ratio (SNR) of up to 14 dB in high-noise factory environment. Further, less than half the provided computational performance of the DSP is used by the proposed method, hence, processing of additional tasks may be included.
Please use this url to cite or link to this publication:
author
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
IEEE International Symposium on Circuits and Systems
pages
4 pages
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007
external identifiers
  • Scopus:34548841090
ISBN
1-4244-0920-9
DOI
10.1109/ISCAS.2007.378462
language
English
LU publication?
no
id
8c29ed19-084e-4d83-ab59-eec92693757e
date added to LUP
2016-06-23 16:42:59
date last changed
2016-10-13 05:10:50
@misc{8c29ed19-084e-4d83-ab59-eec92693757e,
  abstract     = {A real-time digital signal processor (DSP) based implementation of a subband beamforming algorithm and its evaluation for dual microphone speech enhancement is presented. The algorithm, a calibrated constrained beamformer, is described theoretically and a real-time structure is proposed, including an efficient approach for multichannel data transformation. Measurements show that the battery driven DSP implementation supports 20 h operation-time, with an improved signal-to-noise ratio (SNR) of up to 14 dB in high-noise factory environment. Further, less than half the provided computational performance of the DSP is used by the proposed method, hence, processing of additional tasks may be included.},
  author       = {Yermeche, Zohra and Sällberg, Benny and Grbic, Nedelko and Claesson, Ingvar},
  isbn         = {1-4244-0920-9},
  language     = {eng},
  pages        = {353--356},
  publisher    = {ARRAY(0x7df1260)},
  series       = {IEEE International Symposium on Circuits and Systems},
  title        = {Real-Time DSP Implementation of a Subband Beamforming Algorithm for Dual Microphone Speech Enhancement},
  url          = {http://dx.doi.org/10.1109/ISCAS.2007.378462 },
  year         = {2007},
}