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128 kbps Listening Test (Testers Needed)
soltari1
post Feb 3 2004, 06:30
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My friend and I are doing a science fair project on lossy compression. (we are high schoolers if you care) The purpose of this project is to show people that 128kbps is not cd quality despite what the media tells them. This test is concieved as an update to rjamorim's extension test using newer versions of the nero aac and ogg encoders. (We'd like to thank rjamorim for providing a link to the test samples and for the inspiration biggrin.gif )

We are more interested in the abx results of your tests than on the 5 point rating that each format is given because it is less discretionary, (there either is a difference or isn't) but if someone more knowledgeable could provide a little bit more info about why most testers seem to prefer the 5 point scale we could change it.

We are running a parallel 64 kbps test among people at our school, but because they are not audiophiles and can barely notice a difference at this setting we do not feel they contribute meaningfull to the 128kbps test.

We have already prepared all of the files (encoded and then decoded to wav) and test files for use in ABC-HR. To take the test go to Music.Black2d.com. Once we have finished collating the data all results will be available on the site.

Thank you in advance for any contributions you can provide.
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