Objective difference grade
- 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)[1] It corresponds to the subjective difference grade used in human-based audio tests.[2]. The ODG ranges from 0 to −4 and is defined as follows:
| Impairment description |
ITU-R Grade[3] |
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 |
References
Further reading
- Andreas Spanias, Ted Painter, Venkatraman Atti (2007). "Quality Measures for Perceptual Audio Coding". Audio Signal Processing and Coding. Wiley-Interscience. pp. 401. ISBN 0471791474.
- By Nedeljko Cvejic, Tapio Tapio Seppänen (2007). "Subjective and Objective Quality Evaluation of Watremarked Audio". Digital Audio Watermarking Techniques and Technologies. Idea Group Inc. pp. 270. ISBN 159904515X.
Wikimedia Foundation.
2010.
Look at other dictionaries:
Objective Difference Grade — Der Objective Difference Grade (ODG) ist ein Maß zur Beurteilung von Klangqualität. Es handelt sich um ein berechnungsbasiertes Pseudomaß zur Bewertung von Verfahren, die Audiodaten verändern, z. B. verlustbehafteter Audiodatenkompression,… … Deutsch Wikipedia
Grade (climbing) — Rock climbing History Styles Technique Equipment and protection Grades (difficulty of climb) Terminology Belaying Abseiling … Wikipedia
ODG — ist: eine Dateiendung im Bereich von OpenDocument Abkürzung von Objective Difference Grade, berechnungsbasiertes Pseudomaß zur Bewertung audioverändernder Verfahren, z. B. verlustbehaftete Audiodatenkompressionsalgorithmen. Dies … Deutsch Wikipedia
Odg — ist eine Dateiendung im Bereich von OpenDocument Abkürzung von Objective Difference Grade, berechnungsbasiertes Pseudomaß zur Bewertung audioverändernder Verfahren, z. B. verlustbehaftete Audiodatenkompressionsalgorithmen … Deutsch Wikipedia
ODG — can refer to: The file extension for an OpenDocument drawing file. ODG (Company) specializing in amphibious vehicles Old Dungeon Ghyll Objective Difference Grade Overseas Development Group, a fictional UK espionage agency that James Bond works… … Wikipedia
PEAQ — (Perceptual Evaluation of Audio Quality) is a standardized algorithm for objectively measuring perceived audio quality, developed in 1994 1998 by a joint venture of experts within Task Group 6Q of the International Telecommunication Union (ITU R) … Wikipedia
Economic Affairs — ▪ 2006 Introduction In 2005 rising U.S. deficits, tight monetary policies, and higher oil prices triggered by hurricane damage in the Gulf of Mexico were moderating influences on the world economy and on U.S. stock markets, but some other… … Universalium
education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… … Universalium
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … Universalium
Telescopic sight — Scope redirects here. For other uses, see Scope (disambiguation). View through a 4x rifle scope. A telescopic sight, commonly called a scope, is a sighting device that is based on an optical refracting telescope. They are equipped with some form… … Wikipedia
