[PD] question about csound and pd

[ronni montoya]

Hello , i been using csound inside pd lately , I use csoundapi only
for synthesis inside pd and then i control everything with pd.
For doing this i edit the csound code and add this line: gk1 invalue
"variable_name", then i replace gk1 in the csound code wherever i want
to use that values, then i can send values to that variable from pd.
This works fine in most all cases, but not always.

My question is why in this specific case it does not work?
I using the example code of the Partikkel opcode, and i would like to
control this parameters from pd: Osc2Dev and MaxSync

Do anybody have an idea why this is not working?


; Select audio/midi flags here according to platform
; Audio out
-odac ;;;RT audio
; For Non-realtime ouput leave only the line below:
; -o partikkel_softsync.wav -W ;;; for file output any platform

sr = 44100
ksmps = 20
nchnls = 2

; Example by Oeyvind Brandtsegg 2007, revised 2008

giSine ftgen 0, 0, 65537, 10, 1
giCosine ftgen 0, 0, 8193, 9, 1, 1, 90
giSigmoRise ftgen 0, 0, 8193, 19, 0.5, 1, 270, 1 ; rising sigmoid
giSigmoFall ftgen 0, 0, 8193, 19, 0.5, 1, 90, 1 ; falling sigmoid

; *************************************************
; example of soft synchronization of two partikkel instances
; *************************************************
instr 1

gk1 invalue "igrainrate"
gk2 invalue "igrainsize"

gk3 invalue "igrainFreq"

gk4 invalue "iosc2Dev"
gk5 invalue "iMaxSync"
gk6 invalue "mask"
gk7 invalue "fm"

/*score parameters*/
igrainrate = p4 ; grain rate
igrainsize = p5 ; grain size in ms
igrainFreq = p6 ; fundamental frequency of source waveform
iosc2Dev = p7 ; partikkel instance 2 grain rate deviation factor
iMaxSync = p8 ; max soft sync amount (increasing to this value during
length of note)
awavfm = p9

/*overall envelope*/
iattack = 0.001
idecay = 0.2
isustain = 0.7
irelease = 0.2
amp linsegr 0, iattack, 1, idecay, isustain, 1, isustain, irelease, 0

kgrainfreq = gk1 ; grains per second
kdistribution = 0 ; periodic grain distribution
idisttab = -1 ; (default) flat distribution used
; for grain distribution
async = 0 ; no sync input
kenv2amt = 1 ; no secondary enveloping
ienv2tab = -1 ; default secondary envelope (flat)
ienv_attack = giSigmoRise ; default attack envelope (flat)
ienv_decay = giSigmoFall ; default decay envelope (flat)
ksustain_amount = 0.3 ; time (in fraction of grain dur) at
; sustain level for each grain
ka_d_ratio = 0.2 ; balance between attack and decay time
kduration = igrainsize ; set grain duration in ms
kamp = 0.2*0dbfs ; amp
igainmasks = -1 ; (default) no gain masking
kwavfreq = gk3 ; fundamental frequency of source waveform
ksweepshape = 1 ; shape of frequency sweep (0=no sweep)
iwavfreqstarttab = -1 ; default frequency sweep start
; (value in table = 1, which give
; no frequency modification)
iwavfreqendtab = -1 ; default frequency sweep end
; (value in table = 1, which give
; no frequency modification)
awavfm = 7 ; no FM input
ifmamptab = -1 ; default FM scaling (=1)
kfmenv = -1 ; default FM envelope (flat)
icosine = giCosine ; cosine ftable
kTrainCps = kgrainfreq ; set trainlet cps equal to grain
; rate for single-cycle trainlet in
; each grain
knumpartials = 3 ; number of partials in trainlet
kchroma = 1 ; balance of partials in trainlet
ichannelmasks = -1 ; (default) no channel masking,
; all grains to output 1
krandommask = 0 ; no random grain masking
kwaveform1 = giSine ; source waveforms
kwaveform2 = giSine ;
kwaveform3 = giSine ;
kwaveform4 = giSine ;
iwaveamptab = -1 ; mix of 4 source waveforms and
; trainlets (set to default)
asamplepos1 = 0 ; phase offset for reading source waveform
asamplepos2 = 0 ;
asamplepos3 = 0 ;
asamplepos4 = 0 ;
kwavekey1 = 1 ; original key for source waveform
kwavekey2 = 1 ;
kwavekey3 = 1 ;
kwavekey4 = 1 ;
imax_grains = 200 ; max grains per k period
iopcode_id = 1 ; id of opcode, linking partikkel
; to partikkelsync

a1 partikkel kgrainfreq, kdistribution, idisttab, async, kenv2amt, \
ienv2tab,ienv_attack, ienv_decay, ksustain_amount, ka_d_ratio, \
gk2, kamp, igainmasks, kwavfreq, ksweepshape, \
iwavfreqstarttab, iwavfreqendtab, awavfm, ifmamptab, kfmenv, \
icosine, kTrainCps, knumpartials, kchroma, ichannelmasks, \
gk6, kwaveform1, kwaveform2, kwaveform3, kwaveform4, \
iwaveamptab, asamplepos1, asamplepos2, asamplepos3, asamplepos4, \
kwavekey1, kwavekey2, kwavekey3, kwavekey4, imax_grains, iopcode_id

async1 partikkelsync iopcode_id ; clock pulse output of the
; partikkel instance above
ksyncGravity line 0, p3, gk5 ; strength of synchronization
aphase2 init 0
asyncPolarity limit (int(aphase2*2)*2)-1, -1, 1
; use the phase of partikkelsync instance 2 to find sync
; polarity for partikkel instance 2.
; If the phase of instance 2 is less than 0.5, we want to
; nudge it down when synchronizing,
; and if the phase is > 0.5 we want to nudge it upwards.
async1 = async1*ksyncGravity*asyncPolarity ; prepare sync signal
; with polarity and strength

kgrainfreq2 = igrainrate * gk4 ; grains per second for second partikkel instance
iopcode_id2 = 2
a2 partikkel kgrainfreq, kdistribution, idisttab, async1, kenv2amt, \
ienv2tab, ienv_attack, ienv_decay, ksustain_amount, ka_d_ratio, \
gk2, kamp, igainmasks, kwavfreq, ksweepshape, \
iwavfreqstarttab, iwavfreqendtab, awavfm, ifmamptab, kfmenv, \
icosine, kTrainCps, knumpartials, kchroma, ichannelmasks, \
gk6, kwaveform1, kwaveform2, kwaveform3, kwaveform4, \
iwaveamptab, asamplepos1, asamplepos2, asamplepos3, \
asamplepos4, kwavekey1, kwavekey2, kwavekey3, kwavekey4, \
imax_grains, iopcode_id2

async2, aphase2 partikkelsync iopcode_id2
; clock pulse and phase
; output of the partikkel instance above,
; we will only use the phase

outs a1*amp, a2*amp

endin

/*score parameters
igrainrate = p4 ; grain rate
igrainsize = p5 ; grain size in ms
igrainFreq = p6 ; frequency of source wave within grain
iosc2Dev = p7 ; partikkel instance 2 grain rate deviation factor
iMaxSync = p8 ; max soft sync amount (increasing to this value during
length of note)
*/
; GrRate GrSize GrFund Osc2Dev MaxSync

i1 3 4417 12 2 580 1.9 8.8