Abstract
We propose a new multi-microphone noise reduction technique for binaural cue preservation of the desired source and the interferers. This method is based on the linearly constrained minimum variance (LCMV) framework, where the constraints are used for the binaural cue preservation of the desired source and of multiple interferers. In this framework there is a trade-off between noise reduction and binaural cue preservation. The more constraints the LCMV uses for preserving binaural cues, the less degrees of freedom can be used for noise suppression. The recently presented binaural LCMV (BLCMV) method and the optimal BLCMV (OBLCMV) method require two constraints per interferer and introduce an additional interference rejection parameter. This unnecessarily reduces the degrees of freedom, available for noise reduction, and negatively influences the trade-off between noise reduction and binaural cue preservation. With the proposed method, binaural cue preservation is obtained using just a single constraint per interferer without the need of an interference rejection parameter. The proposed method can simultaneously achieve noise reduction and perfect binaural cue preservation of more than twice as many interferers as the BLCMV, while the OBLCMV can preserve the binaural cues of only one interferer.
Original language | English |
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Title of host publication | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) |
Subtitle of host publication | Proceedings |
Editors | Min Dong, Thomas Fang Zheng |
Place of Publication | Danvers, MA |
Publisher | IEEE |
Pages | 460-464 |
Number of pages | 5 |
ISBN (Electronic) | 978-1-4799-9988-0 |
DOIs | |
Publication status | Published - 19 May 2016 |
Event | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Shanghai International Convention Center, Shanghai, China Duration: 20 Mar 2016 → 25 Mar 2016 |
Conference
Conference | 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 |
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Abbreviated title | ICASSP |
Country/Territory | China |
City | Shanghai |
Period | 20/03/16 → 25/03/16 |
Bibliographical note
Accepted Author ManuscriptKeywords
- noise reduction
- LCMV
- binaural cue preservation,
- auditory system
- microphones
- hearing aids
- Interference
- Nickel
- optimization