If it is a sizzling sound, it is a problem with the sound card driver. As for the fart sound you mentioned, I think it is probably caused by a sudden increase in current.

To explain this problem, we must first know how the audio works.

The audio is driven by electromagnetic induction and the action of electric current to push the magnetic induction coil and drive the diaphragm like the eardrum to vibrate and produce sound.

In other words, the power of sound is electric current

When you plug in or unplug the audio plug, or suddenly energize the audio, a current is suddenly applied to the eardrum from its original natural state. That is, a force will be pushed to another position, causing vibration and the "pop" sound you hear. If it only occurs when switching or plugging and unplugging connectors, it is normal and does not need to be. Worry. However, more advanced speakers have instantaneous current protection devices that can filter out instantaneous current peaks. Therefore, better speakers are not prone to such movements.

It is recommended that you turn down the volume every time before turning on the stereo, which will alleviate this problem.

I hope this helps you, thank you

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