SynthMaker

Sample and Hold in code?

Archive · 2008 2 old posts

From the original SynthMaker forum (2004–2014), with its members’ names and dates.

oddson ·

I know I've seen this before but can't remember how to achieve it.

The idea is to have a boolean mask that acts as a trigger to sample the current input value when it transitions to true and hold it as output until the next triggering.

I thought it looked something like this:

streamin in; streamboolin sample; streamout hold; float notSampleOld;

hold = (sample & notSampleOld) ... in; //missing something at this point???

notSampleOld = (sample & 1) == 0; true when false (not).

Dozius ·

Try this one.

streamin in; streamboolin control; streamout out; float current; float lastControl = 0;

current = current + (((lastControl == 0) & (control == 1)) & (in - current)); out = current; lastControl = control;

Haven't tested but I think it should work.

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