LinABX - Double blind (ABX) audio testing for Linux

Welcome at the LinABX site.

LinABX is a software tool to aid in determining audibility of audio artifacts. In order to do so, a technique called 'double blind testing' is used. The listener gives two audio samples. One 'original' and one modified by the device or algorithm under test. These samples are usually called 'A' and 'B'.
LinABX will then choose one out of these two. This unknown sample is usually called 'X'. The listener should now try to answer the question "Is X closer to 'A' or to 'B'?".
After a few trials and with the use of some math it's then possible to give some statements about the ability of the listener to hear the difference.
Because, when the listener has only 50% of the answers correct, then he/she was probably just guessing, so it's very doubtfull that he/she can hear the difference. While, if the listener had a great number of answer correct, than the listener is probably able to hear the difference.

LinABX can be used to e.g. determine whether different bitrates of mp3 encoding give audible different results. Of course, LinABX can also be a great tool to train your ears in an audiotechnical way.
Checkout pcabx.com to learn more about ABX testing and download samples to train your ears with.

How does LinABX work?

LinABX can be configured into two "modes":

Jack: The Jack mode takes 4 mono 'streams' from another application and treats these streams as the 'A' and 'B' sample.
Samples: The Samples mode takes two samples, the A and B samples and let's you compare them. This is the way most other ABX applications work.

Requirements

Screenshot

Download

Current version is 1.99.8

Added possibility to have non-repeating samples (thanks to Stephen Caraher).

Contact

If you have any questions or comments, please feel free to send them to: Remco Poelstra

Last updated: August 6th 2006