Live media synchronization quality of a retransmission-based error recovery scheme

Author

Tasaka, Shuji ; Nunome, Toshiro ; Ishibashi, Yutaka

Author_Institution

Dept. of Electr. & Comput. Eng., Nagoya Inst. of Technol., Japan

Volume

3

fYear

2000

fDate

2000

Firstpage

1535

Abstract

This paper proposes a transport-layer error recovery scheme using retransmission for live audio-video streams transferred over QoS non-guaranteed networks. The scheme employs an enhanced version of the virtual-time rendering (VTR) media synchronization algorithm, which adjusts media rendering-time according to the network condition and is referred to as RVTR (retransmission with VTR). By an experiment, we assess the synchronization quality of both intra-stream and inter-stream in RVTR and four other schemes for audio-video transmission. A comparison of the experimental results indicates that joint application of retransmission control and the VTR synchronization control as in RVTR is effective in the improvement of media synchronization quality and that either control alone does not produce much improvement

Keywords

audio-visual systems; delays; error detection; quality of service; synchronisation; telecommunication control; transport protocols; visual communication; QoS nonguaranteed networks; RTP/UDP; VTR synchronization control; audio-video transmission; delay; experimental results; inter-stream synchronization quality; intra-stream synchronization quality; live audio-video streams; live media synchronization quality; media rendering-time; network condition; retransmission control; retransmission with VTR; retransmission-based error recovery; transport protocol; transport-layer error recovery; virtual-time rendering media synchronization algorithm; Automatic repeat request; Computer errors; Error correction; Forward error correction; Internet; Jitter; Protocols; Streaming media; Video recording; Videoconference;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2000. ICC 2000. 2000 IEEE International Conference on

Conference_Location

New Orleans, LA

Print_ISBN

0-7803-6283-7

Type

conf

DOI

10.1109/ICC.2000.853753

Filename

853753