Which device converts an acoustic wave into an electrical signal?

Headphones
Loudspeaker
Microphone
Amplifier
A microphone, colloquially nicknamed mic or mike is a transducer that converts sound into an electrical signal. Microphones typically need to be connected to a preamplifier before the signal can be recorded or reproduced.
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Answers by country

Headphones
Loudspeaker
Microphone
Amplifier
answers
flagthe Netherlands
7%
7%
84%
0%
13
flagCanada
0%
0%
83%
8%
12
flagGermany
7%
8%
73%
10%
67
flagAustralia
18%
0%
63%
9%
11
flagPoland
9%
11%
55%
23%
8902
flagthe United Kingdom
3%
11%
53%
30%
26
flagIndia
18%
6%
48%
23%
197
flagthe United States
17%
6%
43%
31%
64
flagGreece
45%
9%
36%
9%
11
flagPakistan
0%
0%
30%
70%
10