The act of transduction just means taking energy in one form and converting it into another. There are plenty of broad implications for this, but in audio, typically we’re talking about changes in air pressure, and converting them to AC current, or taking AC current and changing it into changes in air pressure, which is just a fancy way of saying things you can hear. In audio, the main two players are microphones and speakers, and they often work the same way.
But compressors, like an LA-2A, use an optical circuit to convert electricity into light, and that allows them to react differently than, say, a VCA or an FET compressor. But chew on this. When you learn something, when you experience something new, you literally change your brain.
You connect neurons, your brain chemistry changes, and so yet I’ll say it again. Perception is the last element in the signal chain, and you are the ultimate transducer. Now, go transduce something.
