On 5/19/14 10:01 PM, Sampo Syreeni wrote:
On 2014-05-08, Risto Holopainen wrote:
[...] I recall a composer collegue once complaining about repetition
in the noise generator of Csound. I think they used a random
generator with period 2^16 in those days, but it's been improved now.
That's precisely where I landed with this thing, originally. My PRNG
wasn't Csound's but Turbo Pascal's. Still, a linear conguential
generator with 16 bit state.
That's unusable because you can hear the repetition. But the real
question is, *why* *can* you hear it?
um, because it repeats? like nearly every second?
What's the neural mechanism which lets you such long term structure
even in fully randomized sound? What does it tell you about human
hearing, and its theory, and the limits of that theory, precisely?
given any short set of random numbers, if you look at a shorter subset
of it, you will see that some particular frequency components will stand
out more than others. you will hear those frequency components pop out
at you. likely you won't notice or make a mental note of it because the
next second, some other component at a different frequency will pop out.
but if the sequence repeats every 65535/44100 second these temporal
artifacts of the random signal will certainly be noticed.
--
r b-j r...@audioimagination.com
"Imagination is more important than knowledge."
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