The objective difference grade (ODG) is calculated by perceptual evaluation of the audio quality algorithm specified in ITU BS.1387-1.(PEAQ) It corresponds to the subjective difference grade used in human-based audio tests. The ODG ranges from 0 to −4 and is defined as follows:
Impairment description | ITU-R Grade | ODG |
---|---|---|
Imperceptible | 5.0 | 0.0 |
Perceptible, but not annoying | 4.0 | −1.0 |
Slightly annoying | 3.0 | −2.0 |
Annoying | 2.0 | −3.0 |
Very annoying | 1.0 | −4.0 |
Famous quotes containing the words objective, difference and/or grade:
“So much for Mrs. Hollis nine months of pain and 20 years of hope.”
—Alvah Bessie, Ranald MacDougall, and Lester Cole. Raoul Walsh. Nameless GI, Objective Burma, cutting dog tags off a dead GI (1945)
“The difference between poetry and rhetoric
is being
ready to kill
yourself
instead of your children.”
—Audre Lorde (19341992)
“Ideas are like pizza dough, made to be tossed around, and nearly every book represents what my sons third grade teacher refers to as a teachable moment.”
—Anna Quindlen (b. 1952)