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150 lines
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<TITLE>The Answer Guy 38: souncards</TITLE>
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<H4>"The Linux Gazette...<I>making Linux just a little more fun!</I>"</H4>
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<H1><A NAME="answer">
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<img src="../../gx/dennis/qbubble.gif" alt="(?)"
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border="0" align="middle">
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<font color="#B03060">The Answer Guy</font>
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<BR>
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<H4>By James T. Dennis,
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<a href="mailto:linux-questions-only@ssc.com">linux-questions-only@ssc.com</a><BR>
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Starshine Technical Services,
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<A HREF="http://www.starshine.org/">http://www.starshine.org/</A>
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</H4>
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</center>
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<H3 align="left"><img src="../../gx/dennis/qbubble.gif"
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height="50" width="60" alt="(?) " border="0"
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>souncards</H3>
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<p><strong>From Oxy Amigo on Mon, 15 Feb 1999
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</strong></p>
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<P><STRONG>
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I have a Mediavision PAS16, a ALS100+ and a SoundBlaster Live!, can i
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put, at the same time the tree on Linux
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<A HREF="http://www.redhat.com/">Red Hat</A> 5.2? I just want 6
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analog audio inputs.
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</STRONG></P>
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<P><STRONG>
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Thanks.
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</STRONG></P>
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<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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>
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I doubt that it's possible. Many sound cards take up
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two IRQs and one or two DMA channels. You probably
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don't have six available IRQs and 3 to six available
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DMA channels.
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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If you can configure all of the hardware to co-exist
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(setting all of the various I/O port, IRQ, DMA channel
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addresses uniquely for all of them) then you can probably
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get Linux to concurrently access them. (You might have
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to do some kernel patches or play some games with obscure
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kernel boot parameters, module command line options,
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and module load order and/or driver autoprobing order.
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I don't know --- I'm not a C programmer).
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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If you looked around a bit you might find a professional
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sound mixing subsystem that you can interface to your
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PC to give you six or more high fidelity audio inputs.
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I'm not an audiophile, nor a sound engineer either.
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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One of the guys at SVLUG has set up a portable MBone
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multimedia broadcast system which seems to be capable
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of three video/audio feeds (I'm not sure if that's
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switched or concurrent, though I'm now curious enough
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to ask).
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</BLOCKQUOTE>
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<BLOCKQUOTE>
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Have you tried to do this? What sorts of problems
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did you bump into? What is it that you're actually
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trying to do? (What intended application leads to your
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your requirements)?
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</BLOCKQUOTE>
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<P> <hr> <P>
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<H5 align="center"><a href="http://www.linuxgazette.com/copying.html"
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>Copyright ©</a> 1999, James T. Dennis
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<BR>Published in <I>The Linux Gazette</I> Issue 38 March 1999</H5>
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