What causes that ‘rat-a-tat’ noise on your PC speakers?
Ever wondered why we hear that “rat-a-tat” noise through your computer speakers when a cell phone is nearby? It’s not ghosts or aliens…
Ever wondered why we hear that "rat-a-tat" noise through your computer speakers when a cell phone is nearby? Nope, it’s not ghosts or aliens…
You’re on your computer minding your own business when all of a sudden, out of thin air, you hear a high-pitch Morse code-like tapping emit out of your speakers.
Say what?
You might be tempted to call Ghostbusters — and your phone will likely be nearby — because there’s actually a good reason why this is happened.
"Such type of noise could be attributed to one of the components of the audio circuitry of the speakers acting as an antenna, picking up some of the cellular signal and amplifying it" explains Salim Hanna, PhD Eng., and manager of new wireless services for EMC analysis and consultation at Industry Canada. Hanna says she has also experienced this phenomenon: "At home I experienced hearing a short ‘rat-a-tat noise’ occasionally on my hi-fi system when my BlackBerry is close, and establishing a link to a base-station after turning it on."
Noticing any other strange happenings on your PC? Do tell!




This usually happens with GSM based cell phones
True, I'm on a GSM phone and it ALWAYS makes noise thru my speakers when I'm near them at work or at home.
In a way, it predicts phone calls & text messages a few seconds before they actually reach my phone.
I had an old pair of cheapy computer speakers but my Dad decided to hook them up to the once great (but soon replaced) television. One day I was just browsing the web and like the speakers started picking up some sort of like conversation on a phone somewhere because for just a second I heard someone say a word. Obviously I was freaked out until I figured out why it was causing it but when it happens it can be a little disturbing.
Yeah, I've had this problem for years, especially when my phone is near a radio and it receives a text message! Wow, I hear the noise before I even get a warning on my cell phone!
I often get radio playing through my speakers and I'm not even near a radio. I don't know how to make it stop picking up this signal and it gets really annoying. Any idea why this happens or how to stop it?
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kcsgm jxqfc mldinw obqfcv jlhqgkfud azmnxsdy xpjq
I recorded a voice mail on my PC with my Mic. my speakers were off at the time of recoding. i saved the recording and turned off my cell phone. i played back the recording and the rat-a-tat was in the recording.