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Envelope chnset widget

#1

Can I use the chnset opcode to implement an envelope on a widget
So far I have a moogladder with a widget control on the cutoff frequency can I use the chnset opcode to apply an envelope to that widget to control the amount of time that widget is set so with a high decay on the envelope the widget will bounce from 0 to 2000 for example

#2

I’m a little confused, are you asking if you can control a widget from data in Csound, like say an envelop? If so the answer is yes. Check out the following code:

<Cabbage>
form caption("Untitled") size(400, 300), colour(58, 110, 182), pluginid("def1")
keyboard bounds(8, 158, 381, 95)
rslider bounds(20, 14, 104, 108) channel("slider"), range(0, 1, 0, 1, 0.001)
</Cabbage>
<CsoundSynthesizer>
<CsOptions>
-n -d -+rtmidi=NULL -M0 -m0d --midi-key-cps=4 --midi-velocity-amp=5
</CsOptions>
<CsInstruments>
; Initialize the global variables. 
ksmps = 32
nchnls = 2
0dbfs = 1

;instrument will be triggered by keyboard widget
instr 1
kEnv madsr .1, .2, .6, .4
chnset kEnv, "slider"
aOut vco2 p5, p4
outs aOut*kEnv, aOut*kEnv
endin

</CsInstruments>
<CsScore>
;causes Csound to run for about 7000 years...
f0 z
</CsScore>
</CsoundSynthesizer>

envControl.csd (703 Bytes)

#3

I was more interested if the chnset opcode could be used to modulate the widget if so how would you go about doing this

#4

Continuously? Just use an oscillator? I’m still not following exactly what you are trying to do.

ModWidget
ModWidget1452×776 179 KB

#5

Sorry for my explanation very much like in the explanation above but only once with varying levels of in intensity so aswell as having a filter cutoff slider you can control in the GUI you could set the cutoff slider to move independent of the GUI control or could leave it at 0 and have no independent movement

#6

I suppose with an oscillator that only has one cycle might be what I need or maybe another solution :thinking:

#7

I suppose one way to describe what I mean is an envelope on top of a filter so on the GUI there’s a slider controlling the filter cutoff but then also something maybe a adsr envelope modulating the filter cutoff also

#8

My first example showed a slider being controller by an ADSR, that could easily be connected to a filter, and any other control signal can easily be connected to a widget. There is two way communication.