[Csnd] python csound api question

Date	2014-09-26 05:34
From	forrest curo
Subject	[Csnd] python csound api question
	I've been dizzying myself with documentation re the python csnd6 module, looking for whatever might be done with that -- & found: "CreateGlobalVariable(self, *args)" Is that merely a global csound variable? Or could we get float variables that python and a csound instance both recognize as equivalent? Would that be a way to get and set csound variable values without going through 'channels'? Or an example of wistful thinking on my part? Forrest Curo San Diego, US

Date	2014-09-29 05:16
From	Steven Yi
Subject	Re: [Csnd] python csound api question
	If I remember correctly, I think CreateGlobalVariable is really meant for use by plugins to keep track of application-wide data that's bound to a Csound instance. I don't think using it would be good for users and doesn't have to do with a global var in Csound orchestra code. You can export global vars from csound to a channel using chnexport.[1] This allows you use global var within your csound code, but gives access to the var from a host language via channels. [1] - http://csound.github.io/docs/manual/chnexport.html On Thu, Sep 25, 2014 at 9:34 PM, forrest curo wrote: > I've been dizzying myself with documentation re the python csnd6 module, > looking for whatever might be done with that -- & found: > > "CreateGlobalVariable(self, *args)" > > Is that merely a global csound variable? Or could we get float variables > that python and a csound instance both recognize as equivalent? > > Would that be a way to get and set csound variable values without going > through 'channels'? Or an example of wistful thinking on my part? > > Forrest Curo > San Diego, US

Date	2014-09-29 06:25
From	forrest curo
Subject	Re: [Csnd] python csound api question
	yeah, I'd been thinking of using a host language to generate notes from outside csound and send them in for csound to crank out audio from them. But the purpose is served just fine if I generate the notes (via python opcodes for example) directly from inside csound. It looks like the same division of labor between composing & executing, except that turning the system inside out this way eliminates the problem of synchronizing messages to/from python with k-rate processes in csound. I was surprized & excited to see how python code could run & controll csound via the api; but the inside stuff just looks simpler to coordinate... [Csound itself could keep me learning a very long time!] On Sun, Sep 28, 2014 at 9:16 PM, Steven Yi <stevenyi@gmail.com> wrote: If I remember correctly, I think CreateGlobalVariable is really meant for use by plugins to keep track of application-wide data that's bound to a Csound instance. I don't think using it would be good for users and doesn't have to do with a global var in Csound orchestra code. You can export global vars from csound to a channel using chnexport.[1] This allows you use global var within your csound code, but gives access to the var from a host language via channels. [1] - http://csound.github.io/docs/manual/chnexport.html On Thu, Sep 25, 2014 at 9:34 PM, forrest curo <treegestalt@gmail.com> wrote: > I've been dizzying myself with documentation re the python csnd6 module, > looking for whatever might be done with that -- & found: > > "CreateGlobalVariable(self, *args)" > > Is that merely a global csound variable? Or could we get float variables > that python and a csound instance both recognize as equivalent? > > Would that be a way to get and set csound variable values without going > through 'channels'? Or an example of wistful thinking on my part? > > Forrest Curo > San Diego, US Send bugs reports to https://github.com/csound/csound/issues Discussions of bugs and features can be posted here To unsubscribe, send email sympa@lists.bath.ac.uk with body "unsubscribe csound"