Acoustic Noise and Echo Canceling with Microphone Array
| Document type: | Journal Articles |
|---|---|
| Article type: | Original article |
| Peer reviewed: | Yes |
| Author(s): | Mattias Dahl, Ingvar Claesson |
| Title: | Acoustic Noise and Echo Canceling with Microphone Array |
| Journal: | IEEE Transactions on Vehicular Technology |
| Year: | 1999 |
| Volume: | 48 |
| Issue: | 5 |
| Pagination: | 1518-1526 |
| ISSN: | 0018-9545 |
| Publisher: | Institute of electrical and electronics engineers |
| City: | New York |
| ISI number: | 000082645700022 |
| Organization: | Blekinge Institute of Technology |
| Department: | Dept. of Signal Processing (Institutionen för signalbehandling) Dept. of Signal Processing S-372 25 Ronneby +46 455 780 00 http://www.hk-r.se/isb/isb_en.html |
| Authors e-mail: | Mattias.Dahl@isb.hk-r.se |
| Language: | English |
| Abstract: | A novel method of performing acoustic echo canceling using microphone arrays is presented. The method employs a digital self-calibrating microphone system. The calibration process is a simple indirect on-site calibration that adapts to the particulars of the acoustic environment and the electronic equipment in use. Primarily intended for handsfree telephones in automobiles, the method simultaneously suppresses the handsfree loudspeaker and car noise. The system also continuously takes into account disturbances such as fan noise. Examples from an extensive evaluation in a car are also included. Typical performance results demonstrate 20-dB echo cancellation and 10-dB noise reduction simultaneously. |
| Subject: | Signal Processing\Speech Enhancement |
| Note: | Submitted for publication to IEEE Transactions On Vehicular Technology, December 1996 |
