TranceAddict Forums Archive > Main Forums > Music Discussion Odd phenomenon in acoustics: Constant but Rising Tone?? View this Thread in Original format djillicit So the other day I heard on the radio about a certain type of tone that can be generated that is constant, but sounds like it's rising. At a point, you realize that it's the same tone, but you are getting the illusion that it is rising as you listen. Any idea what that's called, or how it even works?? b i n k u n shepard's scale: http://asa.aip.org/sound/cd/demo27a.au or http://www.sandlotscience.com/Impossible/Impossible_Music.htm also check out risset's scale: http://asa.aip.org/sound/cd/demo27b.au needs quicktime....google them if you want to find out why and how. djillicit hah thanks! CLICK TO RETURN TO TOP OF PAGE

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