Synchronization of acoustic sensors for distributed ad-hoc audio networks and its use for blind source separation

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Wehr S, Kellermann W, Lienhart R, Kozintsev I
Publication year: 2004
Pages range: 18-25
ISBN: 9780769522173


Abstract


Advanced computing devices equipped with various wired and wireless network capabilities, built-in micro-phones and audio capture devices are becoming increasingly popular. At the same time, sophisticated signal processing algorithms for hands-free acoustic human-machine interfaces are being developed. Those algorithms are currently restricted to dedicated audio hardware, in part because they require perfectly synchronized audio data. Naive attempts to use the available audio devices for microphone array processing in a distributed wireless setting fails due to the algorithms' sensitivity to deviations in the sampling rates of the distributed devices. We propose here a synchronization scheme, which combines the microphones of different spatially distributed computing devices to an acoustic ad-hoc network. The proposed scheme is capable to significantly compensate the sampling rate deviations of the different audio capture devices and we will show that, as an example, blind source separation performs well with the synchronized data of distributed acoustic sensors. © 2004 IEEE.



FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik


How to cite

APA:
Wehr, S., Kellermann, W., Lienhart, R., & Kozintsev, I. (2004). Synchronization of acoustic sensors for distributed ad-hoc audio networks and its use for blind source separation. (pp. 18-25). Miami, FL, US.

MLA:
Wehr, Stefan, et al. "Synchronization of acoustic sensors for distributed ad-hoc audio networks and its use for blind source separation." Proceedings of the Proceedings - IEEE Sixth International Symposium on Multimedia Software Engineering, MSE 2004, Miami, FL 2004. 18-25.

BibTeX: 

Last updated on 2018-24-12 at 20:50