OK I've updated the testing method. Hydrogenaudio testing involves this method: http://wiki.hydrogenaudio.org/index.php?title=ABX
This is each trial has 3 tracks. 2 of the tracks are known to be pcm and flac (A & B). Track X is unknown and one needs to decide whether X is the same as A or B. I suppose this method give the person who believe they can hear the difference the benefit of the doubt as they would in each trial have sample of both known cases available to them. So in the interest of whoever wants to do these tests I've updated the spreadsheet to reflect this method for now. They reccomend 16 as an optimal numebr to avoid listener fatigue, but have enough data. I've left it at 30 for now. Just delete rows as required. Otherwise comments as above applies. Note that in their method they most frequently also use the same track throughout. Independence is provided by the fact that X is randomly assigned in each case. Note that this does not mean X should be 50:50 split between A & B. +-------------------------------------------------------------------+ |Filename: ABX Testing.zip | |Download: http://forums.slimdevices.com/attachment.php?attachmentid=10553| +-------------------------------------------------------------------+ -- lrossouw Louis 'Last.fm' (http://www.last.fm/user/lrossouw) ------------------------------------------------------------------------ lrossouw's Profile: http://forums.slimdevices.com/member.php?userid=3416 View this thread: http://forums.slimdevices.com/showthread.php?t=71321 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
