sendReply and concatenation

1

I am having problems sending multiple data with sendreply. I probably don’t understand something about the way string concatenation works which throws out errors. I am using this in my SynthDef

onsets = Onsets.kr(chain, thresh, mingap: 15);
	centroid = SpecCentroid.kr(chain);
	loud = Loudness.kr(chain);
	chroma = RunningSum.kr(Chromagram.kr(chain));
	mel = FluidMelBands.kr(src,numBands: 7, minFreq: 20, maxFreq: 10000,windowSize: 2048);
	SendReply.kr(onsets, '/notes', chroma++[centroid,loud]);

This works and I can get the chroma, centroid and loudness with the OSCDef that receives the message. The same is true is I just send the mel information. But when I try to include both chroma and mel bands it breaks down. If I add mel to the list

SendReply.kr(onsets, '/notes', chroma++[centroid,loud]++mel);

The OSCDef gets called multiple times some with single value as the message some with multiple.

Really not sure what am I doing wrong and how to fix it
thanks

2

This sounds like one or the other array is multidimensional. Could you postln the component arrays? Not to see the values – just to see the shape.

EDIT: Or… How many channels does src have?

hjh

3

Thanks. Indeed it was the multichannel issue. the fft chain was a one channel mix of src which was stereo.
much obliged.