How to get Amplitude from PanAz?

Questions
1

Hello everyone,
the title is self explanatory.
I’m find difficulties in analyze a channel from PanAz.
If I use Pan2 is very simple… but I can’t understand how I can read the data from the channel that .poll me an Ugen.

// Post the number of output channels

s.options.numOutputBusChannels_(8);
s.options.numOutputBusChannels.postln;

Server.killAll;
s.boot;
s.plotTree;
s.scope;
s.meter;


(
~bus1 = Bus.control(s,1);
)

(
SynthDef(\LFSawPanAzimuth, {|freq =40, ampFreq=0.1, rminAmp=0.01, rmaxAmp=0.03, spread= 3.0, posFreq =0.1, r_min = -1.0 ,r_max =1.0,an_Scale =1.0|
                  var  osc, panning, rms0,rms1,rms2,rms3,rms4,rms5;

                      osc   = SinOsc.ar(freq);

	panning = PanAz.ar(
		numChans: 6,
        in: osc,
		pos: LFSaw.kr(posFreq).range(r_min,r_max),
		level: LFNoise2.kr(ampFreq).range(rminAmp,rmaxAmp),
        width: spread,
		orientation: 0

	);
	/*
	panning[0].poll;
	
	UGen(OutputProxy): 0
UGen(OutputProxy): 0.000111437
UGen(OutputProxy): 0.00011003
UGen(OutputProxy): 0.000108204
UGen(OutputProxy): 0.000105972
UGen(OutputProxy): 0.000103347
UGen(OutputProxy): 0.000100329
UGen(OutputProxy): 9.69636e-005
UGen(OutputProxy): 9.32565e-005
UGen(OutputProxy): 8.92279e-005
UGen(OutputProxy): 8.48984e-005
UGen(OutputProxy): 8.02913e-005
UGen(OutputProxy): 7.54246e-005
UGen(OutputProxy): 7.03262e-005
UGen(OutputProxy): 6.50187e-005
UGen(OutputProxy): 5.95264e-005
UGen(OutputProxy): 5.38746e-005
UGen(OutputProxy): 4.80884e-005
	*/

	
// analysis channel
	rms0 = Amplitude.kr(panning[0]).ampdb.linlin(-30.0, 0.0, 0.0, 1.0);
	
	/*
	
	rms0.poll; 
	
	UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0
UGen(BinaryOpUGen): 0

*/
	Out.kr(~bus1,rms0*an_Scale);
	
                  Out.ar(0, panning);
                  }).add;

{~lFSawPanAzimuth = Synth(\LFSawPanAzimuth)}.defer(0.1);
)

I hope someone can tell me how to do it.
thank you very much.

2

No time to try this myself, but the amplitude looks awfully low in the panned output. Amplitude has an attack threshold; your signal might not pass it.

1 Like
3

Thank you, you were right, I didn’t cross the threshold… :sweat: