Multichannel signal enhancement using a remote wireless microphone

Brian Bloemendal, Jakob Van De Laar, Piet Sommen

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

1 Citation (Scopus)
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A novel approach to multichannel signal enhancement is presented that exploits data from a remote wireless microphone (RWM). This RWM is placed near an interfering source and transmits only autocorrelation data of its observations to a host, i.e., not the entire signal. The host has access to the autocorrelation data from the RWM and measurements from a local microphone array. A blind source extraction algorithm exploits this correlation data in order to identify the desired extraction filter. This novel approach has several advantages compared to transmitting the entire signal of the RWM. By transmitting only correlation data the required transmission power reduces significantly and synchronization at sample level is not required. Furthermore, leakage of the desired source into the RWM does not degrade performance; and finally, both the desired and interfering sources may be active simultaneously.

Original languageEnglish
Title of host publicationInternational Workshop on Acoustic Signal Enhancement, IWAENC 2012
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9783800734511
Publication statusPublished - 1 Jan 2012
Event2012 International Workshop on Acoustic Signal Enhancement (IWAENC 2012) - RWTH Aachen University, Aachen, Germany
Duration: 4 Sept 20126 Sept 2012


Conference2012 International Workshop on Acoustic Signal Enhancement (IWAENC 2012)
Abbreviated titleIWAENC 2012
OtherInternational Workshop on Acoustic Signal Enhancement 2012 (IWAENC)
Internet address

Bibliographical note

International Workshop on Acoustic Signal Enhancement (IWAENC), 4-6 September 2012, Aachen, Germany


  • Blind source extraction
  • Multichannel signal enhancement
  • Remote wireless microphone
  • Second order statistics


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