In a typical real-time voice application, voice packets are produced at deterministically-spaced time intervals. In the network they encounter a variable amount of delay that changes the deterministic time intervals. A receiving host can employ a buffer to delay the playout of the voice packets in order to reconstruct the original timing. Adaptive techniques can perform continuous estimations o...

Recently we have proposed a multicast media streaming framework that enhances the media synchronization by employing a server-client coordinated adaptive playout and error control. Focusing on the adaptive playout with time-scale modification, we adopt the adaptive playout to help both intra-client and inter-client synchronization in a multicast streaming environment. However, only the usabilit...

We develop a joint playout buffer and Forward Error Correction (FEC) adjustment scheme for Internet Telephony, which incorporates the impact of end-to-end delay on the perceived audio quality. We show that it provides better quality than the adjustment schemes for playout buffer and FEC that were previously published. This is important because of a threshold effect when the end-to-end delay of ...

Multicast streaming has been extensively investigated to tackle the network bandwidth challenge. However, the ubiquitous deployment of IP multicast on the Internet is expected only after several years to come due to the manageability and scalability problems. We study a pragmatic solution to enhance the feasibility of multicast media streaming by focusing on an one-to-many streaming over the so...

A new inter-client synchronization framework employing a server-client coordinated adaptive playout and error control toward one-to-many (i.e., multicast) media streaming is discussed in this paper. The proposed adaptive playout mechanism controls the playout speed of audio and video by adopting the time-scale modification of audio. Based on the overall synchronization status as well as the buf...

RTP/RTCP protocol suite provides the means for sending packetized voice by introducing time stamps and sequence numbers in packet headers. Playout buffering is needed to re-synchronize the received voice stream. In this paper, a new adaptive playout delay adjustment algorithm is introduced. A major problem, especially on low-bandwidth links, with Voice over IP (VoIP) packets is that they includ...

We propose a new scheme for streaming media systems that combines Adaptive Media Playout (AMP) with ratedistortion optimized packet transmission. AMP, the clientcontrolled, adaptive modification of the media playout rate, allows us to flexibly adjust the playout deadlines of individual packets, and can therefore reduce reconstruction distortion. This added flexibility incurs a subjective cost, ...

A new inter-client synchronization framework for one-to-many (i.e., multicast) media streaming is proposed employing a server-client coordinated adaptive playout control. The proposed adaptive player controls the playback speed of audio and video by adopting the time-scale modification of audio. Based on the overall synchronization status as well as the buffer occupancy level, the playout speed...

& h 6 £ x+ þ A F Ò q t] j# Q\ ¦ s 6 xô Ç 1 l xl o) a { 9 @ / p n # Q Û ¼à Ôo b ç Abstract A new inter-client synchronization framework for one-to-many (i.e., multicast) media streaming is proposed employing a server-client coordinated adaptive playout control. The proposed adaptive player controls the playback speed of audio and video by adopting the timescale modification of audio. Based on t...