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white, ... noise generating components

white, ... noise generating components

2001-03-10 by Jeffrey Pontius

In reading about the white, ... noise generation of the MOTM 101 and the
Oakley noise module, I noticed that the audio noise generation is
implemented in different ways: the MOTM 101 uses zener diodes and the
Oakley uses an npn transistor.

Are there any differences in the audio (or other aspects) of these  2
implementations? 

[Note: I'm not interested in comparisons of these 2 *modules*, just that
they have implemented noise in apparently different ways]
Thanks, Jeff

Re: [motm] white, ... noise generating components

2001-03-10 by Paul Schreiber

> In reading about the white, ... noise generation of the MOTM 101 and the
> Oakley noise module, I noticed that the audio noise generation is
> implemented in different ways: the MOTM 101 uses zener diodes and the
> Oakley uses an npn transistor.
>
> Are there any differences in the audio (or other aspects) of these  2
> implementations?
>

Well, I'm just being fancy. Using 2 un-correlated noise sources just makes
the noise "whiter",
Gaussian-wise.

Paul S.

Re: [motm] white, ... noise generating components

2001-03-11 by Jeffrey Pontius

On Sat, 10 Mar 2001, Paul Schreiber wrote:

> 
> 
> > In reading about the white, ... noise generation of the MOTM 101 and the
> > Oakley noise module, I noticed that the audio noise generation is
> > implemented in different ways: the MOTM 101 uses zener diodes and the
> > Oakley uses an npn transistor.
> >
> > Are there any differences in the audio (or other aspects) of these  2
> > implementations?
> >
> 
> Well, I'm just being fancy. Using 2 un-correlated noise sources just makes
> the noise "whiter",
> Gaussian-wise.
Are you saying that the white noise is generated according to a Gaussian
(normal) distribution?  I had thought (without knowing the electronics
behind it) that it would conform to a continuous uniform distribution.
Jeff [going back to making 'noise' with his motm]

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