Symbiotic Streaming of Perceptually Adaptive Audio

Audio perception is highly susceptible to disturbance in temporal quality. In the event of congestion, audio datagrams suffer packet loss, delay, and jitter. Compressed audio appears as one of the most delicate traffic-type to handle on the Internet.


The recent advances in auditory perception promise opportunities where a perceptually clever adaptive audio system can respond to impending breakdown and support near flawless sound. The major problem until now is however receiving fast feedback from the current Internet.


The iTCP developed at Medianet lab offers a mechanism for applications to receive event feedback from network.



ADVANCED NETWORKING: Javed I. Khan and Olufunke I. Olaleye, Symbiotic Audio Communication on Interactive Transport, Proceedings of the IEEE 21st International Conference on Advanced Information Networking and Applications (AINA-07), Niagara Falls, Canada, May 21-23, 2007, pp.687-694. [IEEECS] [KhOl07]



NETWORK ARCHITECTURE: Javed I. Khan and Raid Y. Zaghal, Interactive Transparent Networking: Protocol Meta-modeling based on EFSM, Journal of Computer Communications, Elsevier Science, Volume 29, Issue 17, 8 November 2006, Pages 3536-3552[ DOI] [KhZa06a]

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The Lab has implemented a novel symbiotic audio streaming mechanism (symbiotic mp3 steam) which receives fast feedback from iTCP about congestion and responds with perceptual audio adaptation scheme. We have experimented live over the Internet and observed dramatic improvements in time-bounded audio streaming.


The symbiotic congestion control is applicable for traffic where it is possible to dynamically adjust the data generation rate. We call it time elastic traffic. Most perceptual data, such as audio and video streams generally belongs to this traffic class- control data does not.





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Page last updated February, 2008, Medianet Laboratories.

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