after opening PD change the audio settings to your firewire interface also check the figure beside it labeled channels, this should be at least the number of outputs you're looking for,

then to send audio to different arguments use [dac~] with arguments. E.G. [dac~ 1], [dac~ 4] or multiple arguments so [dac~ 1 2] would be your usual audio output but you could set this in pairs [dac~1 2], [dac~ 3 4] etc

Date: Wed, 9 Dec 2009 02:14:16 -0500
From: marysghost@gmail.com
To: pd-list@iem.at
Subject: [PD] multiple audio ports on mac

Hello Wonderful List!

Sorry in advance, I don't know where to start...

I have a firewire audio interface and I am trying to send out to 4 distinct audio ports with PD (using a Macbook, running on leopard).

While the interface works fine with the system, I don't really understand how to interface it with PD. Are there special objects for this? Settings I have to make in PD?

Thanks!!

_sonia