# Microphones

Edison carbon microphone, western electronics condenser microphone, coil and then ribbon microphone. Coil — electric resistance changes in carbon in the gap between electrodes. Condenser — capacity changes. Dynamic — electromagnetic induction, coil oscillations. Ribbon - light-weighted metallic ribbon, bidirectional.

Directions — locus: omnidirectional, cardioid, bi-directional, short-gun.

Connection: jack (1/4), xlr, 3.5 jack

1) What is the first type of microphone? Carbon

2) What shape does condenser microphone have? Bidirectional

3) how many channels can be transmited over xlr connector? Two