There is also ba.selectn() (in basics.lib):
// selectn(N,i)
// _,_,_,_ : selectn(4,2) : _ // selects the 3rd input among 4
On Mon, Jul 24, 2017 at 8:46 PM, Hermann Meyer <[email protected]> wrote:
> Hi
>
>
> We've a tremolo with waveform select in guitarix, using select3()
>
> here is the source file, Note that it is written for faust 0.9.73, so
> you've to port it to the new library structure in faust.
>
> As well we using our own GUI, so we could translate checkbox to our needs,
> you should replace it with a slider or a knob in order to use the generic
> faust UI.
>
> https://sourceforge.net/p/guitarix/git/ci/master/tree/trunk/
> src/faust/tremolo.dsp
>
>
> regards
> hermann
>
>
> Am 24.07.2017 um 19:28 schrieb Steve Duell:
>
>> Hello,
>>
>> Would someone be so kind as to give me some pointers?
>>
>> The application I'm developing is essentially a tremolo modified from the
>> example in Romain's workshop. I'm trying to replace the sine oscillator
>> with a choice of oscillators running various waveforms to give different
>> shapes to the amplitude modulation. This is where I'm stuck.
>>
>> Below is some pseudocode which hopefully illustrates what I'm trying to
>> achieve. What I'm missing is the user control that actually SELECTS the
>> source to use for the 'signal' variable:
>>
>> tremolo = *(1-depth*((signal) : si.smooth(smoother)))
>> with{
>> depth = vslider("Depth[style:knob]",1,0,1,0.01) : si.smoo;
>> duty = vslider("P/W[style:knob]",0.5,0,1,0.01) : si.smoo;
>> smoother =
>> vslider("De-click[style:knob]",0.95,0.5,0.999,0.001) : si.smoo;
>> signal = os.oscsin(freq) or;
>> os.triangle(freq) or;
>> os.sawtooth(freq) or;
>> os.lf_pulsetrainpos(freq,duty) or;
>> };
>>
>>
>> Thanks a ton for any tips you can give me.
>>
>> -Steve Duell
>>
>>
>>
>>
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>
>
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--
Julius O. Smith III <[email protected]>
Professor of Music and, by courtesy, Electrical Engineering
CCRMA, Stanford University
http://ccrma.stanford.edu/~jos/ <http://ccrma.stanford.edu/>
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