Abstract
Speech enhancement with distributed arrays has been met with various methods. On the one hand, data independent methods require information about the position of sensors, so they are not suitable for dynamic geometries. On the other hand, Wiener-based methods cannot assure a distortionless output. This paper proposes minimum variance distortionless response filtering based on multichannel pseudo-coherence for speech enhancement with ad hoc microphone arrays. This method requires neither position information nor control of the trade-off used in the distortion weighted methods. Furthermore, certain performance criteria are derived in terms of the pseudo-coherence vector, and the method is compared with the multichannel Wiener filter. Evaluation shows the suitability of the proposed method in terms of noise reduction with minimum distortion in ad hoc scenarios.
Original language | English |
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Article number | 07178453 |
Journal | I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings |
Pages (from-to) | 2659-2663 |
Number of pages | 5 |
ISSN | 1520-6149 |
DOIs | |
Publication status | Published - 19 Apr 2015 |
Event | 40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015 - Brisbane, Australia Duration: 19 Apr 2015 → 24 Apr 2015 Conference number: 2015 |
Conference
Conference | 40th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) 2015 |
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Number | 2015 |
Country/Territory | Australia |
City | Brisbane |
Period | 19/04/2015 → 24/04/2015 |
Keywords
- noise reduction
- speech enhancement
- distributed microphone arrays
- short-time Fourier transform
- MVDR filter