Re: More details about channel up and down-mixing

Thanks. The basic approach sounds reasonable. I think instead of that
setInputMixingMode method, it might be simpler to have ChannelCountMode and
ChannelInterpretation and numberOfChannels be attributes on the node? Is
there a need to have different interpretations per input port? Since only
ChannelMergerNodes have more than one input port, I wouldn't have thought
so...

Thanks,
Rob
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