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Why Monitors Emit White Noise Even with Volume Turned Down

Apr 4, 2024

Many people often wonder why their monitors emit white noise even when the volume is turned all the way down. This phenomenon can be explained by understanding the inner workings of monitors and the concept of white noise. In this article, we'll dive into the reasons behind this occurrence, including electromagnetic interference, the power supply, and audio circuitry.


Electromagnetic Interference: All electronic devices produce electromagnetic radiation, and this can interfere with other devices, such as monitors. The interference manifests as white noise, which can sometimes be heard even when the volume is turned down.


Power Supply: The power supply within a monitor is responsible for converting the AC power from the wall outlet to the DC power needed to operate the device. During this conversion process, some electrical noise can be created, which may be audible as a faint white noise.


Audio Circuitry: The audio circuitry within a monitor includes components such as amplifiers, filters, and capacitors that can also produce electrical noise. This noise may be amplified when the circuit is in operation and can be heard as white noise even when the volume is turned down.


In summary, the white noise emitted from monitors with the volume turned down is mostly due to electromagnetic interference, power supply noiseIn summary, the white noise emitted from monitors with the volume turned down is mostly due to electromagnetic interference, power supply noise, and audio circuitry noise. While it may be annoying for some, this faint sound is a byproduct of the electronic components within your monitor and is not a cause for concern.


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