s.quit
s.boot
// allocates a 16-sample buffer and fills it with ascending values
b = Buffer.read(s,"/Applications/Max.app/Contents/Resources/C74/media/msp/jongly.aif");
b.play;
b.plot;
c = Buffer.alloc(s,b.numFrames,2);
e = Buffer.alloc(s,b.numFrames,5);

// run the code
b.fdNMF(c,2)

// read to check
c.plot;
{PlayBuf.ar(2,c.bufnum,doneAction:2)}.play

// run the code
b.fdNMF(e,5, 100, 1024,1024,256,{|x| "itworks".postln; x.postln;})

// read to check
e.plot;
{Splay.ar(PlayBuf.ar(5,e.bufnum,doneAction:2))}.play

// nulltest

{(PlayBuf.ar(5,e.bufnum,doneAction:2).sum)+(-1*PlayBuf.ar(1,b.bufnum,doneAction:2))}.play