I recently updated to ubuntu 14.04 LTS and I am having this issue ever since, a weird strange sound like radio frequency but this doesn't affect any other sound, I can still hear other sounds like music with this weird sound playing in the background. This comes and goes, I don't know how it is triggered and how it goes. any ideas? this happens on the laptop speakers and headphones.
Laptop Specs:
DELL - inspiron 15-3521
Memory: 3.8 GiB
Processor: Intel® Core™ i3-2375M CPU @ 1.50GHz × 4
Graphics Intel® Sandybridge Mobile x86/MMX/SSE2
OS type: 32-bit
Disk 335.3 GB
And the following application was running at the time this happened:
- Google Chrome
- Chromium Web Browser
- Thunderbird Mail
- NetBeans IDE 7.4
- Home Folder
- Text Editor
- FileZilla
- Skype
- Dropbox
- Chrome - Notifications
This issue happened to me again so I started closing the applications one by one to eliminate the problem software, guess what is was Skype.
I had to close it to remove the strange sound, and I stared it again to use it.