There is a radio station that intermittently plays through my headphones when they are plugged in. It does not play through the stereo speakers of my laptop.
When I open the volume mixer, it does not show any sound being played, even though there is sound coming through my headphones.
The sound does not get louder or quieter when I change the volume.
I have closed all browsers, and the sound still comes through.
How can I find a list of all programs that are outputting sound?
53 Answers
I'm going to go with Interference. Very hard to know exactly what causes it, but could be fixed by experiment with things like: Re-route wires, unplug unused things, clean plugs, different outlets, sit in a different position, move things around...
- Tom's Guide - Picking up radio station signal through my speakers
- audio-technica Resolving Interference Problems
Every low-frequency Amplifier picks up the strongest audio signal from local broadcasting stations. When you connect the headphones their cord works as an antenna additionally amplifying the signal. This is caused by poor shielding of headphone's cable.
The frequency range of many wireless (or warless capable) headphones and speakers are at the lower end of the FM range where many religious and public service radio stations operate. So until a transmitter is turned on, you may hear a religious FM station. In other cases it may be simply harmonics and in others shielding.
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