system
Given the following post, respond as if you're commenting on Reddit:
human
Where does the beep be-be-bop be-be-bop sound from my speakers come from when I get an incoming call?

Whenever I'm about to get an incoming call and I'm near my PC, the speakers start playing out this beep be-be-bop be-be-bop thing which stops as soon as my phone starts ringing.

Obviously my phone is talking to the gsm network and the signal is somehow interfering with the speakers, but I get that beeping only just before an incoming call and never during, after or at any other time.

Can anyone explain why?
gpt
Transmission spikes as your phone switches from a passive to an active connection with the tower. The cord of your speakers acts as an antenna and picks up the digital signal. Once the active connection is established, the signal strength goes back down.

If you have super sensitive stereo equipment with unshielded cables and self powered speakers they can also pick up a slight buzzing from the data connection as well if you're close enough, but the signal isn't nearly as strong.

If you want to avoid this phenomenon, get rid of your self powered speakers. Use a pre-amp system with a properly shielded input cable and your problems will go away.