Towards a generalization of relative transfer functions to more than one source
Deleforge A, Gannot S, Kellermann W (2015)
Publication Language: English
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2015
Publisher: Institute of Electrical and Electronics Engineers Inc.
Pages Range: 419-423
Article Number: 7362417
Event location: Nice
ISBN: 978-0-9928-6263-3
DOI: 10.1109/EUSIPCO.2015.7362417
Abstract
We propose a natural way to generalize relative transfer functions (RTFs) to more than one source. We first prove that such a generalization is not possible using a single multichannel spectro-temporal observation, regardless of the number of microphones. We then introduce a new transform for multichannel multi-frame spectrograms, i.e., containing several channels and time frames in each time-frequency bin. This transform allows a natural generalization which satisfies the three key properties of RTFs, namely, they can be directly estimated from observed signals, they capture spatial properties of the sources and they do not depend on emitted signals. Through simulated experiments, we show how this new method can localize multiple simultaneously active sound sources using short spectro-temporal windows, without relying on source separation.
Authors with CRIS profile
Antoine Deleforge
Professur für Signalverarbeitung
Walter Kellermann
Professur für Signalverarbeitung
Involved external institutions
Israel (IL)How to cite
APA:
Deleforge, A., Gannot, S., & Kellermann, W. (2015). Towards a generalization of relative transfer functions to more than one source. In Proceedings of the 23rd European Signal Processing Conference (EUSIPCO) (pp. 419-423). Nice, FR: Institute of Electrical and Electronics Engineers Inc..
MLA:
Deleforge, Antoine, Sharon Gannot, and Walter Kellermann. "Towards a generalization of relative transfer functions to more than one source." Proceedings of the 23rd European Signal Processing Conference (EUSIPCO), Nice Institute of Electrical and Electronics Engineers Inc., 2015. 419-423.
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