[chuck-users] fm?

[eun.sung at no-log.org]

hi
thank you very much for this support.
i'm sorry cause i'm not really...hm..."skilly" in audio synthesis nor in
dsp. i used to noise with commercials software but i'm really enthousiast
with chucking.

thanks

> Hi!
>
> Graham is right.  FM is an abstract base class for all the STK's
> FM-based instruments.  We will fix it to gracefully report error
> without crashing in the upcoming release.
>
> There are several ways to do FM synthesis in ChucK.  A straightforward
> approach is to move along in time, possibly every samp, and modulate the
> carrier in any way you like:
>
>    // carrier
>    sinosc c => dac;
>    // modulator
>    sinosc m => blackhole;
>
>    // carrier frequency
>    220 => float cf;
>    // modulator frequency
>    550 => float mf => m.freq;
>    // index of modulation
>    .5 => float index;
>
>    // time-loop
>    while( true )
>    {
>        // modulate
>        cf + (index * mf * m.last()) => c.freq;
>        // advance time by 1 samp
>        1::samp => now;
>    }
>
> Hope this helps!
>
> Best,
> Ge!
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