sound
Key words:
Audio refers to a set of audio system that combines electrical equipment to emit sound, and can refer to a set of equipment that can restore and play audio signals. The work of the sound system begins with the audio source, which can be a variety of devices such as CD players, Bluetooth devices, televisions, radios, etc. The audio source generates the sound signal, passes through the preamplifier (if applicable) and the audio processor (optional), and then the audio signal goes to the power amplifier, which is responsible for amplifying the low current audio signal to a large enough current to drive the speaker. Finally, the audio signal is fed into the speaker through the power amplifier, and the drive unit inside the speaker vibrates according to the signal to produce sound.
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