Objective difference grade

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The Objective Difference Grade (ODG) is a measure for assessing sound quality .

It is a calculation-based pseudo-measure for evaluating methods that change audio data, e.g. B. Lossy audio data compression , as used in the MP3 format. The ODG was defined in ITU recommendation BS.1387 ( PEAQ ) and has values ​​between 0 and −4, where 0 represents the best value and means that there is no impairment of quality. A value of minus 4 is absolutely unreasonable.

literature

  • T. Thiede, WC Treurniet et al .: PEAQ - The ITU Standard for Objective Measurement of Perceived Audio Quality. Journal of the AES, Issue 48 No. 1/2 Pages 3–29, 2000

Individual evidence

  1. ↑ A novel objective method for evaluating the quality of streaming audio
  2. ↑ PEAQ - the future ITU standard for the objective measurement of the perceived audio quality (923.79 kB PDF )
  3. ↑ On the Quality Assessment of Sound Signals  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. (PDF; 207 kB)@1@ 2Template: Toter Link / www02.lps.ufrj.br