A real-time DSP blind signal separation experimental system based on a new simplified mixing model

P. He, P.C.W. Sommen, B. Yin

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

A real-time blind signal separation experimental system has been designed and implemented using TMS320C40 DSP and LabVIEW virtual instruments software. The system is based on a new simplified mixing model that we proposed recently. The simplified model uses the fact that the acoustic transfer functions from a single source to two closely spaced (approximately several 10 cm apart from each other) microphones are very similar. Only the difference between these two transfer functions is needed. The main function of this DSP system is using the measured difference between two impulse responses (DIR) from one source to two microphones to realize the real-time blind signal separation. The real-time experimental results have shown that the proposed simplified mixing model is feasible. In particular, the blind separation performance can be improved considerably by introducing a time delay to solve the inverse problem of a non-minimum phase transfer function.
Original languageEnglish
Title of host publicationProceedings Eurocon '2001, International Conference on Trends in Communications
PublisherInstitute of Electrical and Electronics Engineers
Pages467-470
Number of pages4
ISBN (Print)0-7803-6490-2
DOIs
Publication statusPublished - 2001
Eventconference; Eurocon '2001, International Conference on Trends in Communications, Bratislava, Slovakia; 2001-07-04; 2001-07-07 -
Duration: 4 Jul 20017 Jul 2001

Conference

Conferenceconference; Eurocon '2001, International Conference on Trends in Communications, Bratislava, Slovakia; 2001-07-04; 2001-07-07
Period4/07/017/07/01
OtherEurocon '2001, International Conference on Trends in Communications, Bratislava, Slovakia

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