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|Title:||Cross-tree adjustment for spatialized audio streaming over networked virtual environments|
|Keywords:||Application level multicast|
|Citation:||Liang, K.,Zimmermann, R. (2009). Cross-tree adjustment for spatialized audio streaming over networked virtual environments. Proceedings of the International Workshop on Network and Operating System Support for Digital Audio and Video : 73-78. ScholarBank@NUS Repository. https://doi.org/10.1145/1542245.1542262|
|Abstract:||In recent years, integrated spatialized voice services have become an appealing application for networked virtual environments (NVE), e.g., Second Life. With a spatialized voice service, people can identify who is talking if there are several participants in the vicinity. The key challenge in a spa-tialized audio streaming application is how to disseminate audio streams while observing bandwidth limits of end-user computers and tight latency constraints, and it can be modeled as NP-complete problem. In this paper, we propose a heuristic algorithm called CTA for spatialized audio streaming over NVEs in a peer-to-peer manner. The proposed algorithm was applied to real avatar mobility traces collected from Second Life, and the simulation results demonstrate that (a) CTA can achieve a high ratio of successful to candidate receivers and (b) CTA enables most of the successful receivers to enjoy minimum latency. Copyright 2009 ACM.|
|Source Title:||Proceedings of the International Workshop on Network and Operating System Support for Digital Audio and Video|
|Appears in Collections:||Staff Publications|
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