[PD] Sample accurate (audio) triggering of vline~

[Christof Ressi]

If you can accept a delay of 1 block for the whole thing, then you could examine each signal vector for the occurance of the pulse, calculate the time position and send a properly delayed bang to [vline~]. 

If you want it without delay, you could rewrite the whole [vline~] thing with a [phasor~] + [noise~] + conditional audio math. Then you could use your pulse in conjuction with some [samphold~] objects to reset the phase of the envelope and sample new random numbers.

Just some ideas.
 
 

Gesendet: Montag, 25. April 2016 um 13:13 Uhr
Von: "Wilfred de Zoete" <puredata at klankontwerp.nl>
An: pd-list at iem.at
Betreff: [PD] Sample accurate (audio) triggering of vline~

In a complex waveshaping environment I'm using arrays as wave tables. There is one [phasor~] that runs the patch and I use [+~] to change phase of reading out the arrays.

Now one of those arrays consists of only one pulse. I want to use that to trigger a [vline~] in sample-accurate time. But how can I use the pulse in the array as a trigger for [vline~]?
I would prefer not to use [snapshot~] as it's not very accurate since that needs to be triggered itself by a metro and it isn't precize enough.

The [phasor~] I'm using is constantly pitch changed, ranging from almost zero to 250 Hz max. The [vline~] has random ramp up, delay and ramp down, that's why I don't use an array to make an envelope.

Cheers, Wilf
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