[LAD] [ANNOUNCE] Safe real-time on the desktop by default; Desktop/audio RT developers, read this!

[Dennis Schulmeister]

On Tue, 2009-06-23 at 03:54 +0200, Esben Stien wrote:
> Dennis Schulmeister <linux-audio-dev at windows3.de> writes:
> 
> > audio performance has always been fine for typical desktop usage
> > without rt privileges me thinks.  Because the issue of latency is
> > relative in that case. But maybe I'm missing an important point.
> 
> Sure, like VoIP. 

There's the buffer argument again. Even a highly compressed
low-bandwidth VoIP stream needs to be buffered by the application
because of the annoying factor not being latency but jitter. If you do a
"regular" phone call from one mobile phone to another you easily get 1
second latency. The point is you don't notice it unless you're standing
next to the other person.

But then what's the reason behind ultra-small hardware buffers which
need to be refreshed very quickly in contrast to the comparatively large
buffers needed for the input stream in the first place?

I see the reasoning for games, though.



Yours sincerely,
Dennis Schulmeister

-- 
Dennis Schulmeister - Schifferstr. 1 - 76189 Karlsruhe - Germany
Tel: +49 721/5978883 - Mob: +49 152/01994400 - eMail: dennis at windows3.de

Now moved to the corridor: Hermes! (http://ncc-1701a.homelinux.net)
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