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<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac ;;;realtime audio
;-iadc ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o pindex-2.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>
sr = 44100
ksmps = 32
nchnls = 2
0dbfs = 1
; This UDO returns a pfield value but returns 0 if it does not exist.
opcode mypvalue, i, i
index xin
inum pcount
if (index > inum) then
iout = 0.0
else
iout pindex index
endif
xout iout
endop
; Envelope UDO that reads parameters from a flexible number of pfields
; Syntax: kenv flexlinseg ipstart
; ipstart is the first pfield of the envelope
; parameters. Reads remaining pfields (up to 21 of them).
; kenv is the output envelope.
opcode flexlinseg, k, i
ipstart xin
iep1 mypvalue ipstart
iep2 mypvalue ipstart + 1
iep3 mypvalue ipstart + 2
iep4 mypvalue ipstart + 3
iep5 mypvalue ipstart + 4
iep6 mypvalue ipstart + 5
iep7 mypvalue ipstart + 6
iep8 mypvalue ipstart + 7
iep9 mypvalue ipstart + 8
iepa mypvalue ipstart + 9
iepb mypvalue ipstart + 10
iepc mypvalue ipstart + 11
iepd mypvalue ipstart + 12
iepe mypvalue ipstart + 13
iepf mypvalue ipstart + 14
iepg mypvalue ipstart + 15
ieph mypvalue ipstart + 16
iepi mypvalue ipstart + 17
iepj mypvalue ipstart + 18
iepk mypvalue ipstart + 19
iepl mypvalue ipstart + 20
kenv linseg iep1, iep2, iep3, iep4, iep5, iep6, iep7, iep8, \
iep9, iepa, iepb, iepc, iepd, iepe, iepf, iepg, \
ieph, iepi, iepj, iepk, iepl
xout kenv
endop
instr 1
; This instrument only requires 3 pfields but can accept up to 24.
; (You will still get warnings about more than 3).
kenv flexlinseg 4 ; envelope params start at p4
aout oscili kenv*.5, 256, 1
outs aout, aout
endin
</CsInstruments>
<CsScore>
f1 0 8192 10 1
i1 0 2 0.0 1.0 1.0 1.0 0.0
i1 2 2 0.0 0.1 1.0 1.0 1.0 0.1 0.0
i1 4 2 0.0 0.5 0.0 ; one problem is that "missing" pfields carry
i1 6 2 0.0 0.5 0.0 ! ; now we can fix this problem with !
i1 8 10 0.0 3.0 1.0 0.3 0.1 0.3 1.0 0.3 0.1 0.3 1.0 0.3 0.1 0.8 0.9 5.0 0.0
e
</CsScore>
</CsoundSynthesizer>
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