From alsa-user-owner@alsa.jcu.cz  Wed Sep 16 14:13:15 1998
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Message-ID: <19980916115320.A363@luedi.oche.de>
Date: Wed, 16 Sep 1998 11:53:20 +0200
From: Dirk Luetjens <dirk@luedi.oche.de>
To: alsa-user@jcu.cz
Subject: Re: audiodrive1868, mup-401
References: <86d892v242.fsf@hobbes.wg.net> <m0zIXto-000Po9C@ale.physics.sunysb.edu>
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In-Reply-To: <m0zIXto-000Po9C@ale.physics.sunysb.edu>; from sharkey@ale.physics.sunysb.edu on Mon, Sep 14, 1998 at 08:38:26AM -0400
Reply-To: alsa-user@alsa.jcu.cz
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Hi,

On Mon, Sep 14, 1998 at 08:38:26AM -0400, sharkey@ale.physics.sunysb.edu wrote:
> > > > - what is AUX Port in the soundcard?
> > > 
> > > I'm not sure what your configuration is, but AUX ports can be used for
> > > input from other devices (such as video capture cards, radio tuner cards,
> > > maybe CDROM drives, etc.)
> > I thought so, too. But I dont have another connector to feed in this
> > signal. Hardware plugs for cdrom, line-in, mic are there, but no aux port.
> 
> If you have a relatively cheap generic card it could be that the chip has
> support for an extra input device, but that the card manufacturers decided
> to save a few cents and not put the jack on the card.  The software sees
> the extra mixer channel on the chip, but can't tell that nothing is connected
> to it.

I looked through the data sheet of the ess1868 which I found on your
server. It seems that there are two AUX ports and one Line-In port
built into the chip. AuxA is normally used for the CDrom, AuxB is
free. The next time I open my computer I will have a look if I can
solder the plug for AuxB somewhere on the card :-) For my second
external CDrom. 

Alsa is a wonderful work
Dirk

P.S.: Please allow me one more question. This card is although
entitled as built in 3D sound. What is this exactly?

