My realtime experience with Csound is that instruments initiated with 
substantial i-time parameters (including printing to the screen) will cause 
glitching.

I deal with this by:
1) running all my instruments *throughout* (always on: I use faders to bring 
them in and out - such is the nature of my music);
2) minimize printing to the screen (or moving the mouse) during performance.

Art Hunkins

----- Original Message ----- 
From: "Malte Steiner" 
To: 
Sent: Tuesday, June 22, 2010 5:35 PM
Subject: [Csnd] Re: Doubles and low-power netbooks


> Hi,
>
> as you can see in the video below Csound with doubles worked fine for me 
> on an EEE netbook under less then perfect conditions (wet, cold and 
> windy), CSound on a streetfest:
>
> http://vimeo.com/12716797
>
> The netbook ran from batteries because the power was shaky, CPU Freq 
> scaling was turned off but actually only because I didnt turned it on on 
> that netbook yet. The distribution is Archlinux with a custom realtime 
> kernel.
>
> My patch replayed multitrack loops from bigger machines from my studio, 
> some processing like pvscale pitchshifting, delays, filtering and reverb 
> plus some synthesis for my solos. It controlled the motorfaders and LEDs 
> on BCF2000 controller to give me a visual feedback of the state, but I 
> replicated it on a FLTK Gui with the built in opcodes, just in case the 
> Behringer fails.
>
> Some odd observations I made anyway and I wonder about the workarounds. 
> CSound behaved to the outside world perfectly, no XRuns with Jack on a 
> Terratec USB Card and 16 milliseconds latency.
> But when I drag the FLTK window, Csound seems to stop its processing, no 
> sound during dragging it. Fortunately I dont have to drag the window 
> around during the performance. I am certain I compiled Csound with the 
> switch on for running FLTK in an extra thread.
>
> Another thing was some random glitches when some new instruments got 
> initiated, some crackling. For an instrument which uses a phase vocoder 
> file to preloaded I worked around by playing the instrument shortly from 
> the score at the beginning, I wonder if I should play all instruments at 
> the beginning to preload them all in memory? The other instruments causing 
> those glitches don't use external files.
>
> Anyway, I never used CSound that way before and I am really happy that I 
> could implement my live application that easily. More documentation to 
> follow...
>
> Cheers,
>
> Malte
>
> -- 
> ----
> media art + development
> http://www.block4.com
>
>
> Send bugs reports to the Sourceforge bug tracker
>            https://sourceforge.net/tracker/?group_id=81968&atid=564599
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> 



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