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Objective difference grade : ウィキペディア英語版 | Objective difference grade
The objective difference grade (ODG) is calculated by perceptual evaluation of the audio quality algorithm specified in ITU BS.1387-1.(PEAQ)〔(ITU Recommendation BS.1387 )〕 It corresponds to the subjective difference grade used in human-based audio tests.〔''Introduction to Digital Audio Coding and Standards'', by Marina Bosi and Richard E. Goldberg, Kluwer Academic Publishers (2002) ISBN 1-40207-357-7.〕 The ODG ranges from 0 to −4 and is defined as follows: == References ==
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