- Title
- Low delay moving-horizon multiple-description audio coding for wireless hearing aids
- Creator
- Østergaard, Jan; Quevedo, Daniel E.; Jensen, Jesper
- Relation
- IEEE International Conference on Acoustics, Speech and Signal Processing, 2009 (ICASSP 2009). 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing: Proceedings (Taipei, Taiwan 19-24 April, 2009) p. 21-24
- Publisher Link
- http://dx.doi.org/10.1109/ICASSP.2009.4959510
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2009
- Description
- In this work, we construct a novel scheme for efficient perceptual coding of audio for robust communication between encoders and wireless hearing aids. To limit the physical size of the hearing aids and to reduce power consumption and thereby increase the lifetime expectancy of the batteries, the hearing aids are constrained to be of low complexity. We therefore provide an asymmetric strategy where most of the computational load is placed at the encoding side. We make use of multiple-description coding. This combats possible erasures on the wireless link between the encoder and the hearing aids without introducing significant delay. Furthermore, we employ psychoacoustically optimized noise-shaping quantizers based on the moving-horizon principle, which exploits a finite prediction horizon.
- Subject
- multiple-description coding; low delay source coding; noise shaping; perceptual audio coding
- Identifier
- uon:8715
- Identifier
- http://hdl.handle.net/1959.13/918819
- Identifier
- ISBN:9781424423545
- Identifier
- ISSN:1520-6149
- Rights
- Copyright © 2009 IEEE. Reprinted from the 2009 IEEE International Conference on Acoustics, Speech, and Signal Processing: Proceedings. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
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