On Fri, Jan 23, 2004 at 06:41:27PM +0100, Frank Barknecht wrote:
> Hallo,
> The Eye hat gesagt: // The Eye wrote:
> 
> > > it's unfortunately not so easy to fix like other consumer cards.
> > > 
> > > since ice1712 *always* needs 10 channels x 32bit samples and its
> > > max. buffer size is limited to 64kB, *at most* you have 0.1 or 0.2 sec
> > > buffer size.  when the task is switched for longer time than that
> > > (which can happen easily), you'll get dropout.
> > > 
> > 
> > So am I understanding you correctly that this is true for _all_ ice1712
> > based cards? i.e. the MAudio Delta ones too? ..
> 
> I have no problems with dropouts on my Delta Audiophile card. Do you
> run a low-latency/preemptible patched kernel?

nope, since so far I have not found a reliable answer to the question
_which_ one I should run .. i.e. which patches I should use and so forth
.. Is it possible to have a kernel that has stability and security stuff
_as_well_as_ the low latency stuff?

> Do you run ecasound with
> higher scheduling (-r:sched_priority) ?

yes, doing that. without it, the situation is even worse.

> If not, than you will get
> dropouts with other cards as well. It's definitely not the ice1712
> driver's fault, it's the way the Linux kernel works (or worked on
> versions >= 2.4) Without higher priority other tasks will sooner or
> later make realtime audio skip.
> 

well, as far as I understood Takashi, it is. I mean my card is a stereo
card but still apparently internally expects 10 channels, if I
understood him correctly. I'm a little confused. All I want is to be
able to record stereo sound with excellent quality on line in. An listen
to it with excellent quality on line out.

-- 
Michael Hellwig  aka  The Eye                 olymp.idle.at admin
check out http://homepage.uibk.ac.at/~csaa5128 for gpg public key
        and don't hesitate to look at http://laerm.or.at


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