Table 1: Overview to overall quality evaluation methods.

Method ACR QoP Method of limit

Presentation Single stimulus, IndependentlySingle stimulus, IndependentlyContinuous, gradually decreasing or increasing the intensity of the stimulus
Duration of stimuli ≤10 sApp. 30 s210 s, quality changes every 30 s
Scales 5/9/11-point scales, MOSSatisfaction (0–5) Enjoyment Objective quality Information assimilation: ratio of right answersBinary acceptable/unacceptable
Applied Audio-video bitrates, codecs, resolution, packet loss [8, 19, 20, 22, 23, 47] Framerate, delay, jitter, devices, [12, 13, 17] Framerate, quantization, audio-video bitrate, resolution, text quality, [9, 10, 14, 25, 48]