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[maxmsp] Re: Re: changing phasor~ frequency in sync with itself

jvkr alljvkr at jvkr.nl
Sun Jul 1 01:37:03 MDT 2007


>Out of 
> curiosity, what is the  particular need for 1 sample accuracy?  (also 
> note that you can get the existing vanilla-max solution to within 2 
> sample accuracy using poly~)
> 
> The reason I ask is that this thread keeps coming up, and it seems like 
> we should either have a dedicated object for this in the Max distro if 
> there is a need for it.


A good reason would be to apply algorithmic (I don't mean FM) processes on the level of sound generation using oscillators and the like (think of Gendy or Vosim).

I have a ppc only external, programmed by a friend, that takes a frequency input like a phasor, determining the slope, but samples upon wrap on the right input a value that it use as the next wrap point. In short, where phasor always wraps at zero, this object will refresh its wrap point every cycle. There are two outlets, one giving the incrementing signal, the second the wrap point as a signal. Dividing the first by the second will result in a ramp from zero to one, of which the speed can be change sample accurate. Mattijs, I think you use windows, right? I might have the code somewhere, it is of any use, let me know.

_
johan


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