BS.1387: Difference between revisions
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===Testing Using EAQUAL=== | ===Testing Using EAQUAL=== | ||
''note: I couldn't find any information about how the test is actually performed (no surprise). this section will be completed soon '' | ''note: I couldn't find any information about how the test is actually performed (no surprise) seeing that it's centrally use by codec developers. this section will be completed soon '' | ||
===External links:=== | ===External links:=== | ||
Revision as of 10:39, 8 July 2005
EAQUAL stands for Evaluation Of Audio Quality. It's an objective measurement technique used to measure the quality of encoded/decoded audio files (very similiar to PEAQ). It acts in contrast to more the common place subjective testing methodology deployed using ABX and ABC/HR reference testing (frequently preferred by hydrogenaudio). It's part of the ITU-R recommendation BS.1387. Several tests have been performed using EAQUAL most notably using numerous AAC encoders to determine via a Pearson Correlation the linear relationship between human ratings and EAQUAL ratings on a given set of test samples. The results however using objective testing methodologies are still inconclusive.
Testing Using EAQUAL
note: I couldn't find any information about how the test is actually performed (no surprise) seeing that it's centrally use by codec developers. this section will be completed soon
External links:
- EAQUAL Sourcecode linux archive of c code used to implement EAQUAL provided by Gabrial Bouvigne.
- EAQUAL Tools zip compression archive of the utility used to perform EAQUAL tests provided by Rarewares.