A simple setup:

VCO1 ->VCF1 -> VCA
             ^
             |
LFO1-------
env1 ------

and a separate ADSR and LFO that control the VCF for example

When I use a midi trigger instrument like this:

instr miditrig
inote   = p4
;ivel    = p5   ; not used now
icps    = cpsmidinn(inote)
		event "i", "vco1", 0, -1, inote
		event "i", "env1", 0, -1
		event "i", "lfo1", 0, -1
endin

it sounds rather messy.
When I comment this miditrig out and move the cpsmidinn to the VCO, it
sounds ok
Any clues?

Richard



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Untested, but I notice you're not using icps for anything. Is it possible you
meant to write:

event "i", "vco1", 0, -1, icps

?



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Event is k-rate. Try event_i?

Thanks Jim, I was not using icps and Rory, I did not know about event_i...



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It's your friend if you are triggering events from a midi instr :)

Some questions though..

instr   vco1
ioct        chnget      "vco1.oct"
kmodd       chnget      "vco1.modd"
kcpsmod	    inletk		"vco1.modin"
;       ADSR envelope
iattack     chnget      "env1.A"
idecay      chnget      "env1.D"
isustain    chnget      "env1.S"
irelease    chnget      "env1.R"
kenv 	    madsr       iattack, idecay, isustain, irelease

kcps        = p4 + ioct*12 + kmodd*kcpsmod*10
a1          vco2 .9, kcps                ; (sawtooth wave with default
parameters)
			outleta     "vco1out", a1*kenv
endin

this is the instrument that is triggered (I moved the env inside the instr)
but: 
it is monophonic now when triggered with event_i
and the sound does not stop, despite the envelope - it only gets softer

the triggering inst is now:

instr miditrig

inote   = p4
iamp    = ampdbfs(((p5 / 127) * 96) - 96)
icps    = cpsmidinn(inote)
		event_i "i", "vco1", 0, -1, icps, iamp
;		event_i "i", "env1", 0, -1
		event_i "i", "lfo1", 0, -1
endin

so i am still puzzled....
 




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Hi,

you start the note for infinite time but you need to also stop them. Something 
like

instr miditrig
....

kend release

if (kend==1) then
	turnoff2 "vco1",0,1
	turnoff2 "env1",0,1
	turnoff2 "lfo1",0,1
endif

endin


(untested code)

best!
tarmo


On Monday 14 April 2014 13:02:00 zappfinger wrote:
> nstr miditrig
> 
> inote   = p4
> iamp    = ampdbfs(((p5 / 127) * 96) - 96)
> icps    = cpsmidinn(inote)
>                 event_i "i", "vco1", 0, -1, icps, iamp
> ;               event_i "i", "env1", 0, -1
>                 event_i "i", "lfo1", 0, -1
> endin

Thanks Tarmo, that seems to do it.
The only thing now is that I have no clue why the instrument has turned
monophonic - only one note at a time...  since the use of event_i.



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You could also try using subinstr? You wouldn't have to worry about
durations then as it would match the duration of your MIDI note/.

On 15 April 2014 11:09, zappfinger  wrote:
> Thanks Tarmo, that seems to do it.
> The only thing now is that I have no clue why the instrument has turned
> monophonic - only one note at a time...  since the use of event_i.
>
>
>
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>
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yes,
subinstr would.sole also the problem of monophony.
tarmo

I could not find any good examples of using subinstr like this, so I moved
the cpsmidinn to the vco and this works fine for me.
BTW there is a section in the Floss manual that talks about using subinstr,
but it is not using this opcode at all..

http://en.flossmanuals.net/csound/ch023_a-additive-synthesis/



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