I'm using Pure Data for a project where I'll be playing several audio files at the same time to different speakers.
Let's say I have two files, and I want one to be played on the left channel of the soundcard, and the second one on the right channel, so that's the first and second inlet of the dac~ 1 2 object.
How can I route the audio signal depending on another value?
I'm basically looking for something like the route object, but with some extra parameter, or some way to pack the audio signal with the channel number (1, 2) and use the number to route the signal.
I just found out that Yves Degoyon's "unauthorized" library has the spigot~ object that does what I want, but only with two channels. In the end I would like to be able to output different sounds to eight or nine channels.
You can use [demultiplex~] from the Zexy library to route one incoming signal to one of several outlets. For instance, [demultiplex~ 1 2 3 4] will have one inlet and four outlets. The single inlet takes both an incoming signal (which will be routed) as well as an single float which selects the outlet to which the signal will be routed. For the opposite behaviour (several incoming signals to several inlets, and only one of them being output by the single outlet) try [multiplex~].
Also note that you can use [mux~] and [demux~] as they are aliases for these same objects.