Neither Sfront nor Csound currently supports changing the orchestra while it is playing. This may happen in the future with Csound but, as far as I know, is not planned for the SAOL specification.

Csound can record audio today, in several different ways.

Why would you run Csound in a separate process? You can use Csound as a library in your own process via the Csound API.

If you really need to change the orchestra while it is running, the only system I know that can do that today is ChucK by Ge Wang and Perry Cook.

On the other hand, you can stop Csound, recompile the orchestra, and start performing again in a second or so today.

Regards,
Mike

-----Original Message-----
>From: Juhana Sadeharju 
>Sent: Jul 31, 2006 8:40 AM
>To: csound-devel@lists.sourceforge.net
>Subject: Re: [Cs-dev] Fw:  is SAOL (MPEG-4SA) dead?
>
>>From: "Michael Gogins" 
>>
>>Second of two messages from Sfront developer John Lazzaro that I'm 
>>forwarding re: SAOL status.
>>>
>>>> Are there ANY parties working on a runtime compiler for SAOL that  you 
>>>> know of? What would it take to create one? (I don't mean  something like 
>>>> CPS, I mean you write SAOL and then you play it).
>
>Is that similar to what I want for Csound (if not yet available):
>My application would be a sequencer similar to Ableton Live or Logic
>and would manage the sequence, GUI and the file resources.
>The Csound would run simultaneously in another process.
>My application would build the orchestra inside Csound. At any time,
>I could remove or add parts of the orchestra. The sequenced composition
>is played by sending the score to Csound. At any time, score could be
>manipulated and playing stopped.
>
>Can Csound record audio? It is not necessary but Csound as an audio/dsp
>engine for other applications would require it.
>
>Juhana
>-- 
>  http://music.columbia.edu/mailman/listinfo/linux-graphics-dev
>  for developers of open source graphics software
>
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