Research Seminars

Scalable parametric audio coder for Internet audio streaming & multicasting

Juan Carlos Cuevas Martinez, Electronics Engineering and Telecommunication Department, University of Jaen, Spain

Wednesday 5 July 2006, 2:00pm, Room 105

Abstract

Our research group has been working on a low bit rate coder (PhD thesis of Pedro Vera-Candeas), which has been adapted for scalability, and optimized for real time coding and decoding. Therefore, one of the main features of this low bit rate audio coder is its availability for broadcast over media, mainly over the Internet and mobile networks. It is well known that it is not a trivial problem; there are many troubles that could appear in a multicasting system, mainly due to Internet lack of QoS. This kind of audio traffic has to exist with TCP connections, avoids congestion and should require as less changes in network equipments as possible. So, in this seminar are shown some features of the coder and how they suit into the audio streaming over the Internet, some of those characteristics are non-differential encoding, embedded capability, real time coding/decoding, real time quality tuning, etc.