Welcome to the InfoSci Platform
Towards Layer Adaptation for Audio Transmission

Towards Layer Adaptation for Audio Transmission

Jan Holub, Oldřich Slavata, Pavel Souček, Odysseas Zisimopoulos, Dimitris Toumpakaris, Stavros Kotsopoulos
Copyright: © 2014 |Volume: 6 |Issue: 4 |Pages: 7
ISSN: 1941-8663|EISSN: 1941-8671|EISBN13: 9781466655201|DOI: 10.4018/IJITN.2014100104
Cite Article Cite Article

MLA

Holub, Jan, et al. "Towards Layer Adaptation for Audio Transmission." IJITN vol.6, no.4 2014: pp.35-41. http://doi.org/10.4018/IJITN.2014100104

APA

Holub, J., Slavata, O., Souček, P., Zisimopoulos, O., Toumpakaris, D., & Kotsopoulos, S. (2014). Towards Layer Adaptation for Audio Transmission. International Journal of Interdisciplinary Telecommunications and Networking (IJITN), 6(4), 35-41. http://doi.org/10.4018/IJITN.2014100104

Chicago

Holub, Jan, et al. "Towards Layer Adaptation for Audio Transmission," International Journal of Interdisciplinary Telecommunications and Networking (IJITN) 6, no.4: 35-41. http://doi.org/10.4018/IJITN.2014100104

Export Reference

Mendeley
Favorite Full-Issue Download

Abstract

When audio is transmitted over the wireless channel, the quality of the audio depends on the signal-to-noise ratio (SNR). The purpose of this paper is to investigate if rate adaptation can be avoided, and a system can rely instead on the audio encoder and decoder to alleviate the effect of channel errors. To this end, the paper reports on a set of experiments on various combinations of channel conditions, constellation sizes and audio encoding used and on the final audio quality achieved. The Mean Opinion Score (MOS) is used for performance evaluation. The MOS values are generated using the ITU-T P.862 (PESQ) and P.863 (POLQA) algorithms, and also using tests by experts. The results support the common practice of adapting the physical layer parameters to changing channel conditions. However, in some cases, it is possible to maintain a constant rate without impacting significantly the quality of the audio. This means that the complexity associated with physical layer and audio rate adaptation can be avoided leading to simpler and more robust designs.

Request Access

You do not own this content. Please login to recommend this title to your institution's librarian or purchase it from the IGI Global bookstore.