playN distribute audio over multiple non-adjacent channels

playN is a multichannel play method for Monitor and NodeProxy (see also: ProxySpace, Ndef) 

that supports playing proxy outputs over non-adjacent channels; somewhat like a splitter/line mixer.

// examples

Server.default = s = Server.internal;

s.boot;

p = ProxySpace.push;

s.scope(8);

// a 3 channel test sound

~test3 = { SinOsc.ar([2, 3, 5] * 100) * 0.2 };

// compare: play out of 3 adjacent channels

~test3.play(3);

~test3.play(6);

~test3.stop;

~test3.play; //  play remembers old (series) output settings;

// outs

~test3.playN([2, 4,7]) // playN to 3 non-adjacent channels

// set outs, amps and vol:

(

~test3.playN(

outs: [2,3,5], 

amps: [0.5, 0.25, 0.125], 

vol: 1

);

)

~test3.vol_(2);

~test3.stop;

~test3.playN; // remembers last state.

// if playN has been used, one can set outs while playing.

// note: this does not work reliably with the .play method!

~test3.monitor.outs_([3,2,1]);

// set amps while playing.

// note: this does not work with play method!

~test3.monitor.amps_(1/[1, 2, 3]).vol_(1);

~test3.playN;

~test3.monitor.outs_([2, 4, 7]);

// one can also spread out one channel to several, with given amplitudes:

(

~test3.playN(

outs: [1, 3, [5,6,7]], 

amps: [0.5, 0.25, [0.125,0.25, 0.5]], 

vol: 2

);

)

~test3.stop;

~test3.playN;

// do changes while off:

~test3.stop;

~test3.monitor.outs_([2, 4, [5,6,3]]);

~test3.monitor.amps_(1/[1, 2, [3,2,1]]);

~test3.playN;

// most comfortable way to edit - only tested on osx. 

~test3.playNDialog;

// output mapping can be prepared before playN is used:

~test3.clear;

~test3 = { SinOsc.ar([2, 3, 5] * 100) * 0.2 };

~test3.vol_(0.5); // vol can be set already

// outs and amps require making a monitor first;

~test3.initMonitor;

~test3.monitor.outs_([3, 5, 6]);

~test3.monitor.amps_([1, 2, 3]);

~test3.playN;

~test3.end;

~test3.clear;

p.clean;

p.pop;