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The absolute foundation of the latest basic knowledge of sound
Source: | Author:pmo2d1d77 | Publish time: 2018-10-09 | 77 Views | Share:
The absolute basis of the latest basic knowledge of sound is 20-20KHZ.

A device that converts sound energy into electrical energy is a microphone.

The device that converts electrical energy into sound energy is loudspeaker.

The audio frequency system produces acoustic feedback whistling, usually adjusting the equalizer.
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