Dear community,

this (simplified) patch runs without problem with standard numerical score.

But unfortunately there's no sound when I want to try it with midi instead.

I get the error message

I don't know why.

It's an additive synthesizer wich uses event_i.

It would be great, if someone of You could give me a hint.

Thanks,

Stefan

<CsoundSynthesizer>
<CsOptions>
-Ma -odac -m0d
</CsOptions>
; ==============================================
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2
0dbfs = 1
giratios ftgen 0,0,16,-2,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16
massign 0,1
; OPCODE, simple additive synthesis
opcode StefansAdsyn, iiiii,iiiiiiii ; 5 xouts, 8 xins
insnum,inumparts,imaxdur,iratios,icps,iglobamp,iatt,irelease xin ;8 xins
ittnr = 1
irandNum random 1, 20000
isubinstr = insnum+icps/(sr+irandNum)
inyquist = sr/2
loop:
;; FREQS
ipartfreq table ittnr-1, iratios
ipartfreq = icps*ipartfreq
        if (ipartfreq >= inyquist) then
                        ittnr = inumparts ; ends loop
endif
;; DURS
ipartdur = imaxdur/ittnr
ipartdur = ipartdur*imaxdur
; AMPS
ipartamp = iglobamp/ittnr
; attack !!
ipartatt = iatt/ittnr
; Release
ipartrel = irelease/ittnr
; send all to subinstr
event_i    "i", isubinstr, 0, ipartdur,ipartfreq,ipartamp,iatt,ipartrel
 ; define end of the loop:
      loop_le    ittnr, 1, inumparts, loop
krelease    release
  if krelease == 1 then ; note off event
        turnoff2    isubinstr, 4, 1
endif
xout ipartdur,ipartfreq,ipartamp,iatt,ipartrel
endop
instr Addsyn
insnum = 101
inumparts = 16
imaxdur = 10
icps cpsmidi
iglobamp ampmidi 0,1
iatt = 0.03
irelease = 0.1
ipartdur,ipartfreq,ipartamp,iatt,ipartrel StefansAdsyn insnum,inumparts,imaxdur,giratios,icps,iglobamp,iatt,irelease
endin
instr 101
idur = p3
icps = p4
iamp = p5
iatt = p6
irelease = p7
aenv expsegr 0.001,iatt,1,idur,0.0001,irelease,0.0001
apart poscil aenv*iamp,icps
outs apart,apart
endin
</CsInstruments>
; ==============================================
<CsScore>
i"Addsyn" 0 60
</CsScore>
</CsoundSynthesizer>