observe
Observes updates indicating the current state of the MimiProcessingParameter.
The MimiProcessingParameter always emits the most recent state to the observe handler functions; a newly registered observer will immediately receive the current state of the MimiProcessingParameter.
IMPORTANT: DO NOT USE THIS TO RECEIVE UPDATES TO YOUR PROCESSING SYSTEM (e.g. headphones).
Parameters
tag
observer
A function called when the MimiProcessingParameter has changed its state.