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
6%
6%
86%
0%
15
flagCanada
0%
0%
83%
8%
12
flagGermany
7%
11%
70%
11%
99
flagAustria
5%
5%
70%
17%
17
flagAustralia
17%
5%
58%
11%
17
flagPoland
9%
11%
55%
23%
9209
flagGreece
33%
6%
53%
6%
15
flagthe United Kingdom
3%
12%
51%
33%
33
flagIndia
18%
7%
47%
24%
250
flagthe United States
20%
8%
41%
27%
72
flagthe Philippines
5%
17%
41%
35%
17
flagPakistan
0%
0%
41%
58%
12