From alsa-devel-owner@alsa.jcu.cz  Sun Oct 25 18:13:40 1998
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	Sun, 25 Oct 1998 18:12:19 +0100
Date: Sun, 25 Oct 1998 18:12:19 +0100 (CET)
From: Jaroslav Kysela <perex@jcu.cz>
To: Fred Floberg <emng@geocities.com>
cc: alsa-devel@jcu.cz
Subject: Re: More ALSA Sequencer stuff
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On Sun, 25 Oct 1998, Fred Floberg wrote:

> > On Wed, 21 Oct 1998, Fred Floberg wrote:
> > > 
> [chop]
> > > The symptom seems to be like a bottleneck in the output to the midi
> > > device. [...]
> > 
> > This bug is caused probably by MPU-401 driver and bad hardware (such as SB
> > AWE 32/64). I wrote before some months ago to this list my problems with
> > this hardware:
> [chop]
> > 
> > Soundcards which aren't affected (non MPU-401):
> > 
> > 1) all GUS soundcards
> > 2) Ensoniq AudioPCI (ES1370/ES1371)
> 
> And so earlier today I went out and bought an AudioPCI card.
> You were right, Jaroslav. The AudioPCI card's midi port works
> just fine. Frank's Sequencer core and test utilities run beautifully
> with it.
> 
> I really hate to say this, but now I'm having trouble with
> full-duplex audio and the AudioPCI card. I don't yet want to
> report a bug, until I've had more time to verify that I'm not
> doing something wrong in the code I'm writing (Csound w/ ALSA
> driver support), but may I ask: Are there any known bugs in the
> AudioPCI driver (especially in the case of full-duplex operation)?

If you have ES1371 you can expect some small trouble: I didn't test driver
code very much for this chip (I don't have soundcard with this hardware).
For ES1370 is working full duplex (or full duplex + second playback
channel together) very well...

						Jaroslav

-----
Jaroslav Kysela <perex@jcu.cz>
Academic Computer Centre, University of South Bohemia
Branisovska 31, C. Budejovice, CZ-370 05 Czech Republic


