[PD] phasor~ and osc~ right inlet: exact timing (was: phasor~ and osc~ right inlet: signal?)

[Roman Haefeli]

Thanks, Frank, for mentioning it again and confirming that it works.
I'll definitely check this one out.

Also many thanks to Mike who provided the patch.

Roman

On Fri, 2010-04-16 at 20:19 +0200, Frank Barknecht wrote:
> On Fri, Apr 16, 2010 at 01:37:37PM +0200, Roman Haefeli wrote:
> > To sum it up, in most cases exact timing can be achieved, but the exact
> > timing for the phase reset is _really_ missing (and is actually
> > essential).
> 
> Well, Mike's version for a clock-accurate phasor~ clone actually is
> pretty good and indeed working. And it's very simple and elegant as well.
> 
> You start with making a phaseshifted phasor~ by sending the phasor~ through a
> [wrap~] as is used a lot in Miller's book and the docs when building synced
> phasor signals for granular synthesis or windowed sample playing. 
> 
> If you add some value to the phasor~ signal, the wrap~-phasor will just
> be phaseshifted by that value. So adding 0.5 to the phasor~ will give
> you a phasor~ in the end that is 0.5 out of phase from the original.
> 
> Mike's trick then is to take a snapshot~ of the original phasor at the
> moment of the desired phase resetting.  If you substract that value from
> the original phasor, you get a phasor~ shifted up or down just by the
> value it had when the phase was last reset.
> 
> Now you can add in the desired phase value again to get a wrap-phasor that is
> out of sync to the original phasor in exactly the desired fashion.
> 
> Ciao