Golden Earring wrote: > > > P.S. My new friend is investigating the possibility of using readily > available & cheap USB-controlled internal relays in our switching box > design which might enable us to dispense with Wombat's services & move > between trials when the panel are ready using a computer program that > could generate a random assignment of "X" & keep track of the panel's > responses to each trial. This might make it possible for the listeners > to switch A/B as often as they wanted, together with switching to X for > comparison at will, & then record their decision regarding X & press > "next" to initiate the next trial. We could printout the %age correct > for each listener for the whole test & program in the statistical > analysis also. Be good if we could pull that off, switch box would be > completely re-usable for future testing with the same listeners or > different ones...
The cheapest , easiest way to do ABX tests is with one of the software ABX comparators. I strongly recommend getting some experience and listener training with one of those before trying ABX tests running on real hardware. Just about any kind of physical ABX can be transported to the realm of software ABX, but you have to have some faith in science to do so. You have to believe that: (1) You have to believe that it is possible for digital recordings to be sonically blameless. (2) ADCs exist which are sonically blameless. If that is true then you can record audio signals and the recordings will representative of reality. (3) DACs exist which are sonically blameless. If that is true then you can record audio signals and the recordings will representative of reality. These are all scientifically true, but I know that I am often dealing with people that doubt established science. ------------------------------------------------------------------------ arnyk's Profile: http://forums.slimdevices.com/member.php?userid=64365 View this thread: http://forums.slimdevices.com/showthread.php?t=106519 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
