i had no problem with a echo audiofire12 card in ubuntu <br><br>playing 12 tracks through jack <br><br>this card can be chained for 24 tracks (or more perhaps)<br><br>you need firewire<br><br><br><br><div class="gmail_quote">
2012/5/17 András Murányi <span dir="ltr"><<a href="mailto:muranyia@gmail.com" target="_blank">muranyia@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br><br><div class="gmail_quote">On Thu, May 17, 2012 at 2:58 PM, Rick Snow <span dir="ltr"><<a href="mailto:ricksnow@gmail.com" target="_blank">ricksnow@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi Andr?s,<div><br></div><div>By Independent audio I meant audio generated from a pd patch or other computer application and diffused across the array of speakers, ie. not having all the speakers limited to playing the same sound like a PA system in a roller skating rink.</div>
<div><br></div><div>In general I was asking more of a hardware question: madi cards etc. </div><div><br></div><div>As for software I've just learned that pd is limited to 32 channel dacs. I guess networking several instances of pd will give you all the channels you need.</div>
<div><br></div><div>cheers,</div><div>Rick</div>
</blockquote></div><br>OK, seems IOhannes already mentioned this in more comprehensive context: Wave Field Simulation. There are lots of papers out there, like this one from last year's AES conference: <a href="http://www.mattmontag.com/media/2011/10/AES-131-e-brief-Montag-Wave-Field-Synthesis-by-Multiple-Line-Arrays.pdf" target="_blank">http://www.mattmontag.com/media/2011/10/AES-131-e-brief-Montag-Wave-Field-Synthesis-by-Multiple-Line-Arrays.pdf</a><br>
<br>I also doubt that Pd would be the best tool for this... networked computers may have a latency that just messes up all the precise timing. I guess you will need something timecoded, and/or low latency hardware, the latter possibly being so called "processors" or "speaker drivers" which are DSPs specifically designed to drive speaker arrays.<span class="HOEnZb"><font color="#888888"><br>
<br>András<br>
</font></span><br>_______________________________________________<br>
<a href="mailto:Pd-list@iem.at">Pd-list@iem.at</a> mailing list<br>
UNSUBSCRIBE and account-management -> <a href="http://lists.puredata.info/listinfo/pd-list" target="_blank">http://lists.puredata.info/listinfo/pd-list</a><br>
<br></blockquote></div><br>