Re: [Rosegarden-devel] buffering stuff and audio quality

[Chris C. <ca...@al...>]

On Wednesday 11 Aug 2004 16:56, Silvan wrote:
> On Wednesday 11 August 2004 04:34 am, Chris Cannam wrote:
> > What about Xsynth hosted by dssi_example_host?  That may be the most
> > important thing to compare with, actually.
>
> ?  Is that in the sources somewhere?

It's in the DSSI distribution, in the examples/ directory.  It's a simple JACK 
host for DSSI plugins.  You run it with the plugin DLL name and optionally 
plugin label as arguments, and it sets up an ALSA/JACK standalone soft synth.  
I wouldn't recommend it for real use, as it suffers from timing jitter -- it 
timestamps incoming events according to the start of the nearest JACK slice 
rather than making the effort to work out when in the slice they actually 
appeared -- laziness on my part, it'd be nice to fix this sooner or later.

> > It might be worth changing things like the JACK period size.  It's
> > faintly possible you've hit a bug that mangles things when the
> > buffers are of some particular unexpected size.
>
> Do you mean frames/period or periods/buffer?  If the latter, which I
> assume, then I can't change it.

No, I meant the former.  Just to see, like.

> Running this stuff on a box that's serving two terminals with three KDE
> sessions running probably doesn't help matters much.

But whatever you're running, you wouldn't expect it to be able to cause this 
kind of effect.


Chris