Re: [Faudiostream-users] how to get elapsed time or samples between triggers

[daniele.pagli...@gmail.com]

Hi Dario,

thanks a lot! It is exactly what I needed.
To go further with the looper, here is the code so far:
import("stdfaust.lib");

sampleRate = 48000;
maxTime = 4;
maxSamples = sampleRate * maxTime;

btn = button("[4]trigger");
readSpeed = hslider("[3]read_speed", 1, -3, 3, 0.1) : si.smoo;

loopSize = ba.sAndH(btn, fi.pole(btn, btn)) : hbargraph("[0]loop_size", 
0, maxSamples);
readIndex = readSpeed/float(sampleRate) : (+ : ma.decimal) ~ _ : 
*(float(loopSize)) : int : hbargraph("[1]read_index", 0, maxSamples);
recIndex = (+(1) : %(maxSamples)) ~ *(btn) : hbargraph("[2]rec_index", 
0, maxSamples);

// doesn't compile
// looper = rwtable(maxSamples,0.0,recIndex,_,readIndex);
// compiles
looper = rwtable(maxSamples,0.0,0,_,readIndex);

process = looper;

the read and write indexes are from the example I found on the 
documentation:
https://faustdoc.grame.fr/manual/syntax/#rwtable-primitive

I get this error for the recIndex and I can't understand its meaning:
ERROR inferring write table type, wrong write index type : RSESN interval()

Can you please point me anywhere I can figuring out what does it mean?

Sorry, my knowledge of the platform is quite small and also functional 
programming syntax is not always clear to me...

Thanks,
Daniele


Il 21/12/20 15:34, Dario Sanfilippo ha scritto:
Hi, Daniele.

Perhaps something like this?

import("stdfaust.lib");
btn = button("trigger");
down_samples = ba.sAndH(btn, fi.pole(btn, btn));
process = down_samples;

Ciao,
Dario

On Mon, 21 Dec 2020 at 14:56, Daniele Pagliero 
<daniele.pagli...@gmail.com <mailto:daniele.pagli...@gmail.com>> wrote:

    Hello,

    I need help understanding how to get the elapsed time or samples
    between
    2 clicks on a button.

    Let's say I have a button like:

    btn = button("trigger");

    I need to know for how long the button was pressed.
    Then use the value to control a rwtable to create a variable
    length looper.

    I've searched in the docs but I didn't find any clue...

    Thanks,
    Daniele





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Dr Dario Sanfilippo
http://dariosanfilippo.com
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