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Sound Speculation
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If it ever exists. You 'just' need a decoder that will respond to more than one address (should be a snap), and knows what to make of the signals to the decoders. That's the tricky part, since the sound is determined in the decoder, and not in the controller. If you only used the stationary decoder, then you'd only have to tell it how to react to commands to each engine. I think that's the SurroundTrax scheme, with the addition of location info the move the sound around. The other way of doing it would be to have a second sound decoder for each loco, combine the outputs, but only amplify the low frequecies for the subwoofer. A box to do that might not be too bad, you'd just need two sound decoders for every engine. Hey, if anyone does that, I want the royalties! <br />
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