Target speech extraction in cocktail party by combining beamforming and blind source separation

Download
  1. Get@NRC: Target speech extraction in cocktail party by combining beamforming and blind source separation (Opens in a new window)
AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Journal titleAcoustics Australia
ISSN0814-6039
Volume39
Issue2
Pages6468; # of pages: 5
SubjectAmbient noise; Cocktail party; Fixed beamforming; Human auditory system; Microphone arrays; Source position; Target signals; Target speaker; Target speech; Time-varying environments; Two stage; Beamforming; Separation; Speech communication; Blind source separation
AbstractDue to the ambient noise, interferences, reverberation, and the speakers moving and talking concurrently, it is a challenge to extract a target speech in a real cocktail-party environment. Emulating human auditory systems, this paper proposes a two-stage target speech extraction method which combines fixed beamforming and blind source separation. With the target speaker remaining in the vicinity of a fixed location, several beams from a microphone array point at an area containing the target, then the beamformed output is fed to a blind source separation scheme to get the target signal. The fixed beamforming preprocessing enhances the robustness to time-varying environments and makes the target signal dominant in the beamformed output and hence easier to extract. In addition, the proposed method does not need to know the knowledge of source positions. Simulations have verified the the effectiveness of the proposed method.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences (IMS-ISM)
Peer reviewedYes
NPARC number21271570
Export citationExport as RIS
Report a correctionReport a correction
Record identifier0aa45829-1210-4340-aeed-9ebd72042c39
Record created2014-03-24
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)