Timbo;228057 Wrote: > I managed to identify this format 4 out of 5 times using random setting > and identically named files (on deciding I could hear a difference I > would open my eyes and right arrow to the file format for confirmation, > then flick on several files to avoid 'knowing' where in the 'random' > playlist I might be and have another go!). FLAC was harder to > differentiate, but 3 out of 5 got me a hit. What this means who knows > (just the extra digital activity on the SB player interfering with my > poor sensitive preamp analogue circuits!?)
It's great that you did a blind test - as opaqueice likes to say, it's fun. Remember though that probability isn't intuitive. Consider that if there is no difference between formats, your wouldn't score 0 in your test. Instead you'll score random successes that make the most likely outcome either 2/5 or 3/5. (You'll score a 2/5 31.25% of the time and 3/5 31.25% of the time - combined chance 62.5%). 3/5 (as far as it can) *supports* the conclusion that FLAC is the same! But more samples are needed to draw a conclusion. I know blind tests take AGES...I did a blind test (on other subject) with only 4 samples and then I ran out of time sadly. But I got 4/4 :-) Darren PS: See http://onlinestatbook.com/chapter5/binomial.html -- darrenyeats SB3 / Inguz -> Sony DAS-703ES DAC -> Krell KAV-300i -> PMC AB-1 Dell laptop -> JVC UX-C30 mini system (old, cheap, loved) ------------------------------------------------------------------------ darrenyeats's Profile: http://forums.slimdevices.com/member.php?userid=10799 View this thread: http://forums.slimdevices.com/showthread.php?t=38258 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
