| Method | ACR | QoP | Method of limit |
| Presentation | Single stimulus, Independently | Single stimulus, Independently | Continuous, gradually decreasing or increasing the intensity of
the stimulus | Duration of stimuli | ≤10 s | App. 30 s | 210 s, quality changes every 30 s | Scales | 5/9/11-point scales,
MOS | Satisfaction (0–5) Enjoyment
Objective
quality
Information assimilation: ratio of right answers | Binary 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]
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