If the potentiometer is used for a long time, there will be poor contact between the metal brush and the diaphragm due to problems such as dust accumulation and wear, and noise will be generated when rotating. If the speaker's screws are not tightened, the inverted tube is not handled properly, and mechanical noise is also generated when playing large dynamic music.
Dealing with such thermal noise can be done by replacing low-noise components or reducing the component's workload. In addition, lowering the operating temperature is also an effective method.
In addition, some computer speakers, when the volume is adjusted too large, there will be noise. This situation is because the power output of the power amplifier may be small, it cannot be avoided by the large dynamic peak signal of the music moment, or because the sound of the speaker is caused by many kinds of situations, such as the speaker is disturbed, the interface or the connection line is poorly connected, and the speaker The quality itself is poor and so on.
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