cliveb;497908 Wrote: > Proper blind tests require that neither the listener nor the tester > knows which is being played, and that levels are perfectly matched. > > In the case of FLAC v. WAV, level matching is a given, so the only > thing that remains is to ensure nobody involved knows what is being > listened to. If we can arrange for a computer to be the tester it makes > the logistics much simpler: > > 1. Select a file that exhibits the difference you hear. > 2. Make two copies: one WAV, the other FLAC. > 3. Listen to them both, as often as you like, in order to acclimatise > yourself to their differences. > 4. Get SqueezeCenter to build a random playlist from the two files. > 5. Listen to the playlist and note down what you think each one is. > Make sure the Squeezebox's display is set such that it does not reveal > the file type. To be statistically meaningful you'll need to audition > about 20 instances. > 6. Now compare your results with the actual playlist. > This test supposes that the listener can easily qualitatively classify the differences and attach each of such classification to a particular stream. If it fails, it will still not prove that there are no audible differences, sorry. ;)
-- Themis SB3 - North Star dac 192 - Cyrus 8xp - Sonus Faber Grand Piano Domus ------------------------------------------------------------------------ Themis's Profile: http://forums.slimdevices.com/member.php?userid=14700 View this thread: http://forums.slimdevices.com/showthread.php?t=71321 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
