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Abstract
In the vast amount of time-domain filtering methods for speech enhancement, the filters are designed to be causal. Recently, however, it was shown that the noise reduction and signal distortion capabilities of such single-channel filters can be improved by allowing the filters to be non-causal. While non-causal filters require knowledge of the future, they can be implemented in practice by introducing a short delay. In this paper, we generalize the idea of exploiting non-causality in optimal filter designs to the multichannel scenario. More specifically, a set of optimal, non-causal, multichannel filters for enhancement based on an orthogonal decomposition is proposed. The evaluation shows that there is a potential gain in noise reduction and signal distortion by introducing non-causality. Moreover, experiments on real-life speech show that we can improve the perceptual quality.
Originalsprog | Engelsk |
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Titel | 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing |
Antal sider | 5 |
Forlag | IEEE Signal Processing Society |
Publikationsdato | 2013 |
Sider | 7274-7278 |
ISBN (Trykt) | 978-1-4799-0356-6 |
DOI | |
Status | Udgivet - 2013 |
Begivenhed | 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing - Vancouver, Canada Varighed: 26 maj 2013 → 31 maj 2013 Konferencens nummer: 38 |
Konference
Konference | 2013 IEEE International Conference on Acoustics, Speech, and Signal Processing |
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Nummer | 38 |
Land/Område | Canada |
By | Vancouver |
Periode | 26/05/2013 → 31/05/2013 |
Navn | I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings |
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ISSN | 1520-6149 |
Emneord
- signal enhancement
- time-domain filtering
- multichannel
- non-causal
Fingeraftryk
Dyk ned i forskningsemnerne om 'Multichannel Signal Enhancement using Non-Causal, Time-Domain Filters'. Sammen danner de et unikt fingeraftryk.Projekter
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Spatio-Temporal Filtering Methods for Enhancement and Separation of Speech Signals
Christensen, M. G., Nørholm, S. M., Karimian-Azari, S. & Jensen, J. R.
01/08/2012 → 30/06/2015
Projekter: Projekt › Forskning