How does mic combined with loudspeaker work?

1. How does speaker with mic work?
2. How are microphone and speaker connected to each other?
3. What happens when you put a microphone next to a speaker?
4. Do microphones pick up sound from speakers?

How does speaker with mic work?

The magnetic field created by current flowing through the voice coil interacts with the magnetic field of the speaker's magnet, forcing the coil and attached cone to move back and forth, producing sound output. A dynamic microphone operates like a speaker in reverse. The diaphragm is moved by changing sound pressure.

How are microphone and speaker connected to each other?

Sound waves from the source hits the diaphragm of the microphone which vibrates and then is converted to electrical energy through magnetic coils whereas electrical signal is converted into sound waves in case of loudspeakers.

What happens when you put a microphone next to a speaker?

Feedback is caused when a microphone picks up the sound from a speaker and that sound is fed back through the speakers in a loop. Feedback is most likely to occur when a microphone is in front of the loudspeaker.

Do microphones pick up sound from speakers?

You may hear feedback from your PC speakers when one or more of the the following conditions are true: You increase the Microphone Boost option. The speakers are too close to the microphone. The speaker volume is turned up so as the microphone hears the speakers.