Connections between ports of different types are made possible by inserting a primitive to convert the signal.

Instead, they may convert the signal into the release of a neurotransmitter, or into continuous graded potentials, either of which may stimulate subsequent neuron(s) into firing an action potential.

They can be recorded by an oscilloscope and camera, but more modern techniques convert the signal with an analog-to-digital converter and output to a computer to be saved.

The brain converts the signals it receives from 22 electrodes in each ear back into sound.

Octave-down effects are typically produced by converting the signal to a square wave, and then using flip-flop circuits to divide the frequency by two.