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dc.contributor.authorTseng, KKen_US
dc.contributor.authorLin, YDen_US
dc.date.accessioned2014-12-08T15:26:19Z-
dc.date.available2014-12-08T15:26:19Z-
dc.date.issued2003en_US
dc.identifier.isbn7-5635-0686-1en_US
dc.identifier.urihttp://hdl.handle.net/11536/18701-
dc.description.abstractIn the network devices for real time streaming, e.g. VoIP phone, video phone and online game, the playout algorithm controls the playout delay to eliminate the jitter and to minimize the overflow packet loss. Conventional algorithms did this based on network delay only; they did not consider the user perceived quality, and aware the codec and communication duplex mode. Therefore, we present two novel approaches: codec aware adaptive playout (CAAP) and duplex aware adaptive playout (DAAP), they intent to optimize the user perceived quality based on codec and communication duplex mode respectively. Because of their different characteristics, CAAP and DAAP can work either alone or together; and their improvements are accumulative. The out-performance of CAAP and DAAP are superior the prior algorithms in our substantial but conservative evaluation. Since no objective mechanisms for measuring the speech quality of two-way communication exist; a new LMOS-DMOS measurement mechanism is also proposed. Although VoIP is an exemplary embodiment in this paper, we formally model our algorithms into a generalized user perceived QoS control as well.en_US
dc.language.isoen_USen_US
dc.subjectplayout algorithmen_US
dc.subjectnetwork jitteren_US
dc.subjectreal time streamingen_US
dc.subjectspeech quality measurementen_US
dc.subjectuser perceived qualityen_US
dc.titleUser perceived codec and duplex aware playout algorithms and LMOS-DMOS measurement for real time streamsen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2003 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOL 1 AND 2, PROCEEDINGSen_US
dc.citation.spage1666en_US
dc.citation.epage1669en_US
dc.contributor.department交大名義發表zh_TW
dc.contributor.departmentNational Chiao Tung Universityen_US
dc.identifier.wosnumberWOS:000185077800369-
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