Something connected or in the Computer is picking up Radio Frequencies. It is some sort of coil that does this, that the coils turns coincide with a Chanel. May be a Mic etc. The Speakers only amplify what the sound card is picking up
OnePlus 5 review
Alice Saey's mesmerising animation for Dutch singer Mark Lotterman
iPad Pro 10.5in (2017) review
Comment booster votre iPhone ?