linuxaudio.org

2011/11/2 Iain Duncan :

quoted text
>

> On Wed, Nov 2, 2011 at 10:25 AM, Paul Davis

> wrote:

>>

>> On Wed, Nov 2, 2011 at 1:09 PM, Iain Duncan

>> wrote:

>> > - realtime low latency engine in C++ using per sample callback audio (

>> > either RTAudio or Jack or PortAudio )

>>

>> this conflicts with this:

>>

>> > Basically I want to be able to do the gui and data transforming code in

>> > Python whenever possible and allow plugins to be written to work on the

>> > data

>> > in Python

>>

>> the GUI is one thing; transforming data *in general* with python isn't

>> going to fit into a low latency engine.

>>

>> now, of course, if you mean "performing edits to high level data

>> structures", which you might, then there isn't really a problem

>> (though you'll likely want to get into RCU to manage things). but if

>> you are talking about DSP processing with python plugins, i *doubt*

>> that it will work reliably.

>

> thanks Paul, I think I was unclear. If I understand you correctly, then I

> meant transforming high level data. I'm making a CV style step sequencer for

> live looping, so I'm talking about having Python be used to do things like

> apply transformative routines to material that is in the sequences but is

> not yet in the audio output chain.  Stuff like, when I hit this midi key,

> run this routine over the sequence data. These Python transformations are

> meant to be run at lower priority, ie if the engine wants the processor to

> spit out the next sample while the transformation is part way through,

> that's fine, it gets interrupted. I wasn't intending to use Python to apply

> dsp to signals going out in realtime, that would likely be accomplished

> using either the STK or embedded Csound instances.

Have you looked at pyo?

https://code.google.com/p/pyo/
I believe it may fit your criteria.
Best,

Tristan

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