Okay, then best to stick with one DAC per channel
I was going to suggest a super cheapy hack for the case where you just want one sound to have multiple possible speaker sources, which is to use an audio switch based on 4011 bilateral switches, with a single amplifier and an Arduino to multiplex the channel.
But if you want concurrent sources then its likely less confusing and more flexible to build a system where every speaker has its own amplifier and DAC.
I've never built such a system, but just mulling over the possibilities you might have with new technologies.
cheers, Andy
On Sun, Sep 02, 2012 at 09:47:35PM +0200, umberto torrez wrote:
simultaneously would be better. but maybe not the 50 at the same time , maybe simultaneously up to 8?
Is it too much difference? simultaneously vs no simultaneously?
cheers
U.
2012/9/2 Andy Farnell padawan12@obiwannabe.co.uk
In that case Umberto, one more specific question;
Do you need these speakers to play simultaneously, or for just one to make a sound at any time?
Andy
On Sun, Sep 02, 2012 at 09:18:55PM +0200, umberto torrez wrote:
Hi, Andy and how does your system work? Do you have a link? How many speakers are you using?
I dont need high degree of phase stability , i need to control 50 very cheap speakers. I dont really mind if they dont produce all the frequency range. If each speaker generate only one frequency , its ok.
I only need to be able to control them (the 50) from the computer, i was thinking, maybe not using sound?
cheers
U.
2012/9/2 Andy Farnell padawan12@obiwannabe.co.uk
A question to consider; Do the channels need a high degree of phase stability?
Fernando is designing for a WFS system here. You may have more relaxed requirements for a theatre or installation multichannel system not needing such a degree of correlation. Using a very simliar approach with jack-udp, but with asynchronous receivers, chained ethernet, using gumstick or Raspberry Pi boards with cheap audio USB dongles.
Andy
On Fri, Aug 31, 2012 at 09:16:40AM -0700, Miller Puckette wrote:
Best solution I've seen so far is by Fernando Lopez-Lezcano --
there's a
paper in the Linux Audio Conference 2012: http://lac.linuxaudio.org/2012/papers/29.pdf
cheers miller
On Fri, Aug 31, 2012 at 05:58:50PM +0200, umberto torrez wrote:
Hi list, i was wondering which is the best approach for
controlling a
lots
of speakers with pd? 50 ? Is there any hardware or technique that allows to do this and that
is
not
so expensive?
any idea?
Umberto.
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