DocumentCode :
3435472
Title :
Introducing song form intelligence into streaming audio
Author :
Curran, Kevin
Author_Institution :
Internet Technol. Res. Group, Ulster Univ., UK
fYear :
2003
fDate :
28-30 April 2003
Firstpage :
701
Lastpage :
705
Abstract :
When receiving streaming media over a low bandwidth wireless connection, users can experience not only packet losses but also extended service interruptions. During this time no packets are received and, if not addressed, these dropped packets cause unacceptable interruptions in the audio stream. A long dropout of this kind may be overcome by ensuring that the buffer at the client is large enough. However, when using fixed bit rate technologies this may only be done by buffering packets for an extended period before starting to play the track. During this period, many users are likely to lose interest or become frustrated. This paper presents a novel semantic audio error concealment algorithm which enables the audio to start playing within two or three seconds, while at the same time using a small proportion of the available bandwidth to fill the client device buffer with received packets but categorised into structures of the song. A pattern matching runtime algorithm works to identify portions of the audio stream and when a dropout does occur the relevant sections of the buffered audio are inserted so as to create a perfect match for the lost audio. Our algorithm can be shown to increase reliability on bursty wireless networks.
Keywords :
audio coding; buffer storage; error correction codes; mobile radio; multimedia communication; packet radio networks; pattern matching; bursty wireless networks; client device buffer; dropout; low bandwidth wireless connection; pattern matching runtime algorithm; reliability; semantic audio error concealment; song form intelligence; streaming audio; streaming media; Bandwidth; Bit rate; Communication industry; Delay; Pattern matching; Runtime; Streaming media; Telecommunication network reliability; Web and internet services; Wireless networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Technology: Coding and Computing [Computers and Communications], 2003. Proceedings. ITCC 2003. International Conference on
Print_ISBN :
0-7695-1916-4
Type :
conf
DOI :
10.1109/ITCC.2003.1197616
Filename :
1197616
Link To Document :
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