[chuck-users] Glisson ChucK Program

[Joel Matthys]

Hi Mitch. Yeah, I couldn't get sync to work for frequency either. I 
guess we should file that as a bug.

The only refinements I would make is to put the code to update the 
envelope in a separate thread and spork it.

Envelope e => blackhole;
440 => e.value;
SinOsc s => dac;
0.1 => s.gain;
100::ms => e.duration;

spork ~gliss (100::samp);
while (1)
{
   Math.random2(220,880) => e.target;
   second => now;
}

fun void gliss(dur updateRate)
{
   while (1)
   {
     e.value() => s.freq;
     updateRate => now;
   }
}

//------------------------------------------------------------

On 09/03/2015 07:13 PM, Mitch Kaufman wrote:
> Hi list,
>
> I am a relatively new user and am enjoying exploring different areas 
> of ChucK.  I was trying to develop a program to create glissons or 
> short particles with a moving frequency range.  I came up with an 
> approach but I think there may be an easier way.  Here is the program:
>
> SinOsc sin => dac;
> Envelope env => blackhole;
> 500.0 => sin.freq => float x;  //starting frequency
> 100::ms => dur rampTime;  //ramp time period
> 0 => env.value;  //starting value
> rampTime => env.duration;
> 400.0 => env.target;  //ramp to target - in this case, 900 Hz
> now + rampTime => time t;
> while( now < t )
> {
>     // modulate frequency by envelope
>     x+env.value() => sin.freq;
>     // advance time by 100 samples
>     100::samp => now;
> }
>
> I think there may be an easier way of doing this using:
>
> Envelope env => SinOsc sin => dac;
>
> But I can't seem to get it working using a proper sin.sync value.  
> Does anyone have any ideas on improving the approach?
>
> Regards,
> Mitch
>
>
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