8. Introduction to Microphones, speakers and headphones

MikroElektronika

Microphones, speakers and headphones are components commonly used as the input and output devices of many circuits. A microphone converts sound waves into electrical signals that closely follow the waveform of the sound being received. This signal is then amplified by the circuit and transformed into a sound by a speaker or headphone.  The symbols for these components are shown on 8.1.

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