Korg Poly800/EX800 Users

Alex,

I used a random number look up table of 256 numbers.

Not very random but very fast and very cheap.

Mike




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From: Alex Drinkwater <the_voder@...>
To: korgpolyex@...m
Sent: Mon, January 4, 2010 10:52:38 AM
Subject: Re: [korgpolyex] Re: Random sample and hold - please explain

  
So do you use/did Korg use this method to generate pseudo-random noise?

a|x




On 4 Jan 2010, at 15:27, Michael Hawkins wrote:


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>A high frequency sine wave sampled at low frequency will resemble a random number generator.
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>An infinitely high frequency sine wave sampled at infinitely low frequency would be a true random number generator. Except that since the sample rate is infinitely low, it would take an infinite amount of time to prove it.
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>;-)
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>Mike
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From: gordonjcp <gordon@gjcp. net>
>To: korgpolyex@yahoogro ups.com
>Sent: Mon, January 4, 2010 9:58:23 AM
>Subject: [korgpolyex] Re: Random sample and hold - please explain
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>--- In korgpolyex@yahoogro ups.com, Electrohead <electrohead2000@ ...> wrote:
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>> So it's sampling from white noise? That's a great idea. Very random. 
>> Most synths sample a sine wave for S&H. 
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>Mmm, none that I've seen do ;-)
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>What you'd get is a very aliased sinewave depending on the frequency of te sine and the LFO rate. It's a useful if strange effect, good for cyclic patterns. Feeding a squarewave in will give you a variable pulse width pulse output, and a sawtooth wave will give you a "staircase" wave. A mixture of sinewaves (think Hammond organ waves) would give you very complex patterns.
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>Right, must go and build an outboard S&H now...
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>Gordon MM0YEQ
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