NDLI: Flexible playout adaptation for low delay AAC RTP communication

Content Provider	IEEE Xplore Digital Library
Author	Issing, J. Reuschl, S. Dressler, F. Färber, N.
Copyright Year	2011
Description	Author affiliation: Multimedia Transport Group, Fraunhofer Institute for Integrated Circuits, Erlangen, Germany (Reuschl, S.; Färber, N.) \|\| Dept. Computer Science 7, Computer Networks and Communication Systems, Friedrich-Alexander-University, Erlangen, Germany (Issing, J.; Dressler, F.)
Abstract	We present an integrated approach for flexible playout adaptation for high quality audio transmission over impaired network connections. The key concept of our framework is a continuous measurement of the transmission delay, the delay variation, and packet loss. Based on these measurements, the adaptive playout control employs audio time stretching using audio concealment and frame dropping techniques to keep the low delay requirements. In the literature, playout adaptation techniques have mainly been considered for voice over IP, using silence periods between talkspurts, or for high quality audio transmission over dedicated network links. To the best of our knowledge, our playout algorithm is the first achieving low delay high quality audio streaming over impaired network connections for both music and speech. We used a significant number of network traces to estimate the variation of the network quality in DSL, WLAN, UMTS and GPRS links and to update the parameters of our playout adaptation technique. Experimental results clearly indicate that our system provides very high accuracy for the desired accepted late loss rate and achieves a fast playout adaptation, even for rapidly changing network conditions.
Starting Page	1
Ending Page	9
File Size	908192
Page Count	9
File Format	PDF
ISBN	9781424489527
e-ISBN	9781424489534
e-ISBN	9781424489510
DOI	10.1109/COMSNETS.2011.5716414
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-01-04
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Playout Adaptation Codecs Audio Communication Engine Estimation Low Delay Advanced Audio Coding Receivers Jitter Indexes Delay Clocks RTP
Content Type	Text
Resource Type	Article

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