Error when trying to generate binaural sound with ATK

Questions
1

I get a strange error when trying to generate binaural output with the ATK.
This is what I do:

// test binaural
(
{
	var sig;
	var bsig;
	var azi, ele;

    azi = MouseX.kr(pi, -pi);
    ele = MouseY.kr(-pi/2, pi/2);

	// test signal
	//sig = Decay.ar(Dust.ar(20), 0.01, WhiteNoise.ar(0.5));
	sig = WhiteNoise.ar(0.1);

	// encode
	bsig = FoaEncode.ar(sig, FoaEncoderMatrix.newOmni);
	bsig = FoaTransform.ar(bsig, 'push', pi/2, azi, ele);

	// decode
	sig = FoaDecode.ar(bsig, FoaDecoderKernel.newCIPIC(21,s));

	Out.ar(0,sig);

}.play
)

The error I get is:
ERROR: Convolution2 arg: ‘framesize’ has bad input: nil
I have no idea where this comes from.
Any suggestions?

2

IIUC the FoaDecoderKernel should be prepared in advance, outside the SynthDef, then referenced in the SynthDef.

FoaDecoderKernel loading is asynchronous, so you can’t stick this operation in just anywhere.

hjh

3

Thanks, that was the problem.

4

Thanks @jamshark70 for the quick answer!

As a reminder, the ATK offers online Guides & Tutorials.

And, an example of using the binaural decoder can be found here.