Bugs item #3542093, was opened at 2012-07-10 10:41
Message generated for change (Comment added) made by veplaini
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Menno (menno0)
Assigned to: Victor Lazzarini (veplaini)
Summary: outrg issue

Initial Comment:
outrg does give the right results, but closes more than once with a memory invalid pointer error

example:
<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac    ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o outrg.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 4	;quad
0dbfs  = 1

instr 1

kcps = p4
asig1  vco2 .5, 55						;sawtooth1
asig2  vco2 .5, 110						;sawtooth2
asig3  vco2 .5, 220						;sawtooth3
asig4  vco2 .5, 440						;sawtooth4
kstart randomh 1,4.99, kcps					;choose between 1 and 4
kstart = int(kstart)
printks "number of the first channel = %d\n",1/ p4+0.1, kstart	;decide what will be the start channel for asig1
      outrg kstart, asig1, asig2, asig3, asig4			;start with 55 Hz in channel1, 110 Hz in ch.2,  	
								;220 Hz in ch.3, 440 Hz in ch.4
endin
</CsInstruments>
<CsScore>

i 1 0 10 1
i 1 11 5 30
e
</CsScore>
</CsoundSynthesizer>


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>Comment By: Victor Lazzarini (veplaini)
Date: 2012-10-18 07:24

Message:
I can't reproduce it with 2 channels on dac or with 4 channels to a
soundfile (OSX). Can you:

1) try this with a soundfile output instead
2) try this with 2 channels instead of 4

If these are still crashing, then it's OS-dependent as I can't reproduce
this on my OSX system. 

----------------------------------------------------------------------

Comment By: Menno (menno0)
Date: 2012-10-18 07:17

Message:
I installed the latest Winxound and was able to save the error output.
CsoundQt crashes immediately so i was unable to get the output.
The output is attached.
I'm  on Xubuntu 12.04 64 bit

----------------------------------------------------------------------

Comment By: Victor Lazzarini (veplaini)
Date: 2012-10-17 08:16

Message:
can't reproduce the crash in your second example either (setting nchnls=2)

----------------------------------------------------------------------

Comment By: Victor Lazzarini (veplaini)
Date: 2012-10-17 08:13

Message:
Sorry I can't reproduce the crash here. I don't have four channels, but I
am using file output. Can you check if this crashes with file output too?

----------------------------------------------------------------------

Comment By: Menno (menno0)
Date: 2012-10-07 04:13

Message:
The opcode seemed to ber repaired but it is not.
Here is an example from John Ffitch:

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac    ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o outrg.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 48000
ksmps = 32
nchnls = 4        ;quad
0dbfs  = 1

instr 1

kleft init 1
asig  vco2 .5, 220			;sawtooth
idur = p3/(nchnls-1)
knext init idur
kpos init 0
krate init 1/idur
kbase init 0
ktime timeinsts
if ktime>=knext then
  kleft = kleft + 1
  knext = knext + idur
  kpos = 0
  kbase = ktime
else
  kpos = (ktime-kbase)/idur
endif
;printks "speaker %d position %f\n", 0, kleft, kpos
a1,a2 pan2 asig, kpos
      outrg  kleft, a1, a2
kpos = kbase/idur
endin

</CsInstruments>
<CsScore>

i 1 0 10
e3
</CsScore>
</CsoundSynthesizer>

a screenshot of the crash is attached


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