TSync: a new synchronization framework for multi-site 3D tele-immersion
Proceedings of the 20th international workshop on Network and operating systems support for digital audio and video
QoS and resource management in distributed interactive multimedia environments
Multimedia Tools and Applications
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This paper describes a technique to obtain a time dilation or contraction of an audio signal. Different Computer Graphics applications can take advantage of this technique. In real-time networked VR applications, such as teleconference or games, audio might be transmited independently from the rest of the data, These different signals arrive asynchronously and need to be somehow resynchronized on the fly. In animation, it can help to automatically fit and merge pre-recorded sound samples to special timed events. It also makes it easier to accomplish special effects like lipsync for dubbing or changing the voice of an animated character. Our technique tries to eliminate distortions by the replication of the original signal frequencies. Malvar wavelets are used to avoid clicking between segment transitions.