Load stereo file to mono buffer

Questions
1

Is there a way to create a mono buffer from a stereo file where both channels are combined?

2

There might be a simpler way, but this works for me:

// load a stereo sound file
b = Buffer.read(s, Platform.resourceDir +/+ "sounds/SinedPink.aiff");
b.numChannels; // 2

(
b.loadToFloatArray(action: { |array|
	d = Buffer.loadCollection(s, array.unlace(2).sum * 0.5
});
)

d.numChannels; // 1

Replace the 0.5 constant with -3.dbamp (≈ 1/sqrt(2) ≈ 0.707) for uncorrelated signals.

3

If you want to keep it all on the server, the FluCoMa extension has a tool that can do this:

(
b = Buffer.read(s, Platform.resourceDir +/+ "sounds/SinedPink.aiff");
c = Buffer(s);
FluidBufCompose.processBlocking(s,b,numChans:1,destination:c,gain:-6.dbamp);
FluidBufCompose.processBlocking(s,b,startChan:1,numChans:1,destination:c,gain:-6.dbamp,destGain:1);
)

b.numChannels; // 2
c.numChannels; // 1

b.play;
c.play;

b.plot
c.plot
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