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[Csnd] Android Csound6 Oddity

Date2013-11-12 20:10
From"Art Hunkins"
Subject[Csnd] Android Csound6 Oddity
Thanks, Mike, for recreating the Csound6.apk. It downloads and installs fine for me too.
 
I've discovered an anomoly with the most recent .apk however. The simple .csd below illustrates it.
 
With CSD Player and your first two apk's for Csound6 (6.00 and 6.00.1), the .csd does what one expects: play 200Hz until you press butt1, where it changes to 400Hz. The latest .apk (for Csound6.01) *plays nothing* until you press butt1 (where it plays 400Hz).
 
Strangely, when the gkfreq line is placed inside instr 1, the example plays as expected.
 
The problem clearly has to do with the first few lines of instr 1 (chnget and trigger), because when the first five lines of instr 1 are deleted, the issue vanishes.
 
This incompatibility among Android Csound versions is an odd one. It's important to me as it causes both pieces I presented at the recent Csound conference to malfunction. 
 
I'd appreciate any illumination as to what may be going on here. Something significant must have changed between Android Csound 6.00.1 and 6.01?
 
Art Hunkins
 
<CsoundSynthesizer>
<CsOptions>
 
-odac
 
</CsOptions>
<CsInstruments>
 
sr      = 44100
ksmps = 100
nchnls  =       2
 
gkfreq   init    200
 
 instr 1
  
k1      chnget   "butt1"
k1a     trigger  k1, .5, 0
        if k1a == 1 then
gkfreq  =        400
        endif
aout    lfo      10000, gkfreq
        outs     aout, aout
       
        endin
       
</CsInstruments>
<CsScore>
 
i1 0 60
 
</CsScore>
</CsoundSynthesizer>