Adaptive Microphone Array Employing Calibration Signals. An Analytical Evaluation
| Document type: | Researchreports |
|---|---|
| Full text: | |
| Author(s): | Sven Nordholm |
| Title: | Adaptive Microphone Array Employing Calibration Signals. An Analytical Evaluation |
| Series: | Research Report |
| Year: | 1995 |
| Issue: | 7 |
| ISSN: | 1103-1581 |
| 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: | sven.nordholm@isb.hk-r.se |
| Language: | English |
| Abstract: | This report evaluates an adaptive microphone array which facilitates a simple built-in calibration to the environment and instrumentation. The method has been suggested for use in hands-free mobile telephones for both speech enhancement and acoustic echo-cancellation as well as speech recognition. The scheme has several advantages such as a simple calibration procedure, directed jammer suppression, versatile robust beamforming and reduced target signal distortion. The analysis employs noncausal Wiener filters yielding compact and effective theoretical suppression limits. |
| Subject: | Signal Processing\Speech Enhancement |
| Keywords: | Speech Enhancement, Adaptive Beamforming, Microphone Array |
| URN: | urn:nbn:se:bth-00022 |
