That's very clever, is it an audio illusion, where your brain imagines that a constant series of the same note is actually going up in pitch?
Indeedy, the frequency of the notes kinda blur into each other at a point, and audibly it can sound like the notes are forever going up a scale. Really clever audiophiles aill notice the difference though - the Bass notes as tehy ascend blur the higher pitched notes so you don't notice that it's taking over the scale(that doesn't include me though! I know what's going on, but I too can only hear the scale going up forever!).
I programmed something on the Beeb, that sounded like "continually falling upwards" whilst at the same time descending noise, got it from a type in, and tinkered around with it.
It was like an audio version of one of those endless staircase images.
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Indeedy, the frequency of the notes kinda blur into each other at a point, and audibly it can sound like the notes are forever going up a scale. Really clever audiophiles aill notice the difference though - the Bass notes as tehy ascend blur the higher pitched notes so you don't notice that it's taking over the scale(that doesn't include me though! I know what's going on, but I too can only hear the scale going up forever!).
It was like an audio version of one of those endless staircase images.