setEmitterSound stomps on other sound channels

Using setEmitterSound in Particle Candy and finding the emitter is killing other sounds?

I think the following line in the function setEmitterSound could be better written;

if SoundProperties == nil then SoundProperties = { channel = 1, loops = 0 } end

should be;

if SoundProperties == nil then SoundProperties = { channel = 0, loops = 0 } end

This allows the system to select a free sound channel, rather than stomping over channel 1