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EURASIP Journal on Wireless Communications and Networking

Table 1 ITU-T 5-point scale - ACR

From: The impact of video-quality-level switching on user quality of experience in dynamic adaptive streaming over HTTP

Grading value

Estimated quality

Perceived impairment

5

Excellent

Imperceptible

4

Good

Perceptible but not annoying

3

Fair

Slightly annoying

2

Poor

Annoying

1

Bad

Very annoying

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