Re: [ot] Re: [Alsa-devel] Xruns with Audiophile 2496 M-audio

2004-05-29 Thread Jan Depner
On Sat, 2004-05-29 at 09:31, Tim Goetze wrote:

 depends on what 'system' we're talking about, which isn't really clear
 in the first place (nor is it too important, but here goes anyway ...
 :)
 
 you can see the whole setup as the system, then latency is the time
 from keypress to voltage change at the DAC out. or you can just look
 at the kernel side as as you do. or you can look at the time from MIDI
 interrupt to the audio DAC converting the first affected audio sample.
 
 all examples of valid 'systems' to look at in this context, depending
 on whether you assume the musician's, the kernel- or the audio
 application-programmer's view.
 
Agreed.  But the problem that keeps popping up on the lists is that
people who are not doing live sound, have cards that do hardware
monitoring, and don't need to use a tiny buffer size waste their time
trying to get the minimum buffer size because they think they need to
get 2-3ms latency.  So, they get xruns out the wazoo and wonder how to
fix it.  In this case he *needs* a small buffer size though since he's
doing, essentially, a live application.

Jan




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Re: [ot] Re: [Alsa-devel] Xruns with Audiophile 2496 M-audio

2004-05-29 Thread Tim Goetze
[Jan Depner]
   Agreed.  But the problem that keeps popping up on the lists is that
people who are not doing live sound, have cards that do hardware
monitoring, and don't need to use a tiny buffer size waste their time
trying to get the minimum buffer size because they think they need to
get 2-3ms latency.  So, they get xruns out the wazoo and wonder how to
fix it.  In this case he *needs* a small buffer size though since he's
doing, essentially, a live application.

agreed.

there must be a wiki or some other sort of documentation regarding all
the latency issues out there. at least it would be nice to hand out an
URL that answers the most common questions (they do indeed seem to
come up time and again even on the -dev lists).

tim


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