This mail is especially intended for Michael Gogins.
I saw that some of the python examples were recently updated for use with
Csound6 and i wanted to give Drone.py a try.
Because i use jack i changed the Preview line (line 299) to: 
	'Preview':  '-+rtaudio=jack -o dac:system:playback_ -r48000 -k750
--env:RAWWAVE_PATH=/usr/local/share/csound/rawwaves ---midi-key=4
--midi-velocity=5 -+id_artist=%s -+id_copyright=Copyright_2007_by_%s
-+id_title=%s --output=%s' % (author, author, title, soundfileName),

which i presume to be correct. 

Then i ran drone.py with WinXound and the command line an got a segmentation
fault when i push the Play button.
I see the errors but do not know how to solve them.
Can you have a look at it?

drone.py.output
  



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I get this same error on Linux with Alsa and with rendering to soundfile. I will try to update this piece for Csound 6.

With Preview a drone.py.wave is created and when i play it back in Audacity i
notice 2 things:
- it's beautiful!
- i notice a small DC offset, but i'm sure i can put in dcblock somewhere in
the code,  or the butterhp opcode.

Also, with choosing the Audio button (and adapting the csound command to
reflect that i am running jack) i could manipulate the sound in real time.

thanks for the fix!




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it could be the reason why CsoundAC.csd is producing undefined errors all the
time; it may have to do with this bug in chnexport? The whole csd is running
on it...
Does CsoundAC.csd together with Lindenmayer.py work on your Linux box?



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