[PD] Clipping Detector

Alex from Idoia alex at idoia.com
Mon Feb 3 20:09:14 CET 2003


  Hello,
Any make file for zexy on OSX ?
Thanks

On Monday, February 3, 2003, at 05:35  pm, Mathieu Bouchard wrote:

>
> On Mon, 3 Feb 2003, matthew jones wrote:
>>> There's [>~] (in Zexy, I guess)
>> does this not output an audio signal type?  I need it to output a 
>> (data
>> type) 1 or bang when the input signal==1, else not send anything at 
>> all...
>> sorry, I know this is childsplay really, I just haven't learnt how to 
>> do
>> externals yet.
>
> I don't know signal objects very much, but if you can raise your 
> signal to
> a large enough even power, then all values very close to +1 or -1 will 
> be
> mapped very very close to +1, and all others will be mapped very close 
> to
> 0.
>
> e.g. if you do x**300, then:
>
> x = +1.000 and -1.000 stay   1.000
> x = +0.995 and -0.995 become 0.222
> x = +0.990 and -0.990 become 0.049
> x = +0.980 and -0.980 become 0.0023
>
> then if you detect the volume of the resulting signal (root-mean-square
> for example), it should be proportional to the percentage of clipping.
>
> ________________________________________________________________
> Mathieu Bouchard                       http://artengine.ca/matju
>
>
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