How high can you hear (with music & lowpass)
Reply #57 – 2003-03-11 13:23:36
Hi! Thanx to Kikeg for those 19.5 and 20.5 samples! They are sitting in the above mentioned ftp-server ... (pub/wav/kikeg only, for now) I tested again: 19.5: like a breeze 10/10 20: this time, nearly as easy!!!! (last time my ears were already deaf, i think) 20.5: much harder due to mistakes and then increasing hearing fatigue - i needed to stop before beeing able to get below minimal procentage: ### ABC/HR Version 0.9b, 30 August 2002 Testname: kikeg2 1R = M:\Audio\TEST\wav\kikeg\Chenoa_20_5KHz_lowpass.wav --------------------------------------- General Comments: --------------------------------------- ABX Results: Original vs M:\Audio\TEST\wav\kikeg\Chenoa_20_5KHz_lowpass.wav 23 out of 32, pval = 0.010 ### BUT, i can here the differences quite well! At least till i hear them 10 times ... after that, it gets harder and harder to differentiate! Also, for 20 kHz and 20.5 kHz it was much harder then 19.5 kHz and below! I needed to hear "X", "X", then "A", then "X", then "B" then "X" for each trial ... At 19.5 and below, i could just click "X", only sometime "A" and "X" to verify and then "next trial" Is there a program that supports some checksum? I mean right now that is not a prove, as i could have made that up. Maybe a program that calculates some checksum to verify the correct result?!?! I did not test 21 kHz again - but even with fresh ears, i don´t think i can get that ... Btw. i am 37!!! B)