Title: Scalable Audio Coding for Heterogeneous Communication Networks
Speaker: Bastiaan Kleijn
Abstract:
The increasing heterogeneity of communication networks requires audio coders that can adapt instantaneously to bit rate constraints and to packet loss. This talk introduces new methods that facilitate adaptation to the network environment and describes scalable coding architectures. We first discuss the basic optimization criteria used in coding design and their effect on the behavior of the coder. Then we discuss two new techniques that facilitate scalability: a method to optimize the distribution of rate between the coding model and the coding data and the design of continously scalable multiple description coding to combat time-varying packet loss. Finally we discuss new audio coding architectures and their practical performance.

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