Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Acoustic Echo Cancelling and Noise Suppression with Microphone Arrays
Responsible organisation
1999 (English)Report (Other academic)Alternative title
Akustisk Eko- och Brus-undertryckning med Mikrofon Arrayer (Swedish)
Abstract [en]

This report presents a method to achieve acoustic echo canceling and noise suppression using microphone arrays. The method employs a digital self-calibrating microphone system. The on-site calibration process is a simple indirect calibration which adapts in each specific case to the environment and the electronic equipment used. The method also continuously reduces environmental disturbances such as car engine noise and fan noise. The method is primarily aimed at hands free mobile telephones by suppressing the hands free loudspeaker and car cabin noise simultaneously. The report also contains an evaluation of the impact of echo and noise suppression on a real conversation, accomplished in a car using a microphone array.

Abstract [sv]

Genom att använda mikrofon arrayer kan talförbättring erhållas i handsfree telefon utrustning. Vi presenterar en metod att utföra detta för ett mobiltelefon system som monteras i en bil. Vi använder oss av sex mikrofonelement vars signaler behandlas under pågående samtal så att talkvaliten förbättras. Resultat från en verklig situation presenteras. Denna visar en väsentlig talförbättring.

Place, publisher, year, edition, pages
1999.
Series
Blekinge Tekniska Högskola Forskningsrapport, ISSN 1103-1581 ; 4
Keyword [en]
Microphone Arrays, Neural Networks, Echo Canceling, Noise Suppression
National Category
Signal Processing
Identifiers
URN: urn:nbn:se:bth-00126Local ID: oai:bth.se:forskinfo436ED8C3C7C0BA4BC12568A3002CABF3OAI: oai:DiVA.org:bth-00126DiVA: diva2:838121
Available from: 2012-09-18 Created: 2000-03-15 Last updated: 2015-06-30Bibliographically approved

Open Access in DiVA

fulltext(1342 kB)503 downloads
File information
File name FULLTEXT01.pdfFile size 1342 kBChecksum SHA-512
87ee566ea85e01d077fff2316d7ed7cd1de692d881ba75c979649cbaeba8827c434a33f0a79e8dff86c990133c74dd6bba656865ad8ded98a28952391e97fbe8
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Dahl, MattiasClaesson, Ingvar
Signal Processing

Search outside of DiVA

GoogleGoogle Scholar
Total: 503 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 125 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf