[PD] multichannel instalation

[IOhannes m zmoelnig]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 2011-08-25 06:56, Jaime Oliver wrote:
>> I haven't been able to get the Sapphire to output more than two channels
>> through Pd (though it is supposed to be capable of 8).
> 
> don't know this card but have you set the number of output channels to 4?

i second that.
Pd is definitely made for multi- and manychannel setups.
(the first publicly shown project i did in Pd was 1999, when we used 16
channels; in the meantime, we regularily use Pd with 64 channels output;
this is of course with some "super soundcard", but it's just to tell
you, that Pd can and will do it's part of the multichannel setup; for
information on whether your OS and soundcard are up to it, please refer
to the manuals :-)


> 
>> I have tried making a multichannel patch, for eg [dac~ 1 2 3 4]. All that
>> happens is I get a reduced signal from my 1 and 2 channels coming through my
>> 3 and 4  channels.

this sound mainly like an internal mixer setting of your soundcard.

>  you'll need as many independent channels as independent speakers in
> your array....

"...playing at the same time".

e.g. you could do a 70 speaker installation with just a stereo output
and a lot of routing logic, e.g. use relays to properly dispatch the
audio signals to 2-of-70 speakers; obviously you won't be able to do WFS
with a system like that, but you can make a sound wander around between
speakers. bear in mind, that relays also have a nice aesthetics on their
own...the computer we used for driving such an installation was named
"Klapotetz" [1]

ghmsdft
IOhannes

[1] http://en.wikipedia.org/wiki/Klopotec
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAk5V+vEACgkQkX2Xpv6ydvQazgCdG4Y1bFjEqaQeGvtasQD6Fcfo
8SAAn0Gj5KIfawM5WgRiZLIfj4FBoGgQ
=saf5
-----END PGP SIGNATURE-----

-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 3636 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20110825/9fbd4f65/attachment-0001.bin>