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This paper studies subjective tradeoff between fidelity and latency in an interactive audio--visual application over the Internet. In audio--video transmission, its temporal structure is disturbed by delay jitter of packets. The fidelity means how exactly the temporal structure is preserved. The degradation in the fidelity can be improved by playout buffer.(More)
— This paper quantitatively evaluates the mutually compensatory property in audio–video transmission over the In-ternet by the psychometric method. In our previous study, we used MOS (Mean Opinion Score) as the user–level QoS parameter ; however, MOS is an ordinal scale, and therefore, its value does not necessarily represent exact difference between the(More)