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Before flagging this question as duplicate, this is not a random or periodic clicking sound. It only happens once a sound is played on the speakers for the "first time".

"First time" being after a few seconds of silence. The audio driver could be asleep, and once a sound is reproduced it wakes up triggering a "click".

Is there any way to remove this anoying sound?

Ubuntu 14,04
NVIDIA Corporation MCP79 High Definition Audio (rev b1)
Gabriel Meono
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  • Without detailed information I can only say that this is usually a power management issue of the audio codec and give you this example http://askubuntu.com/q/97868/40581 – LiveWireBT Apr 11 '15 at 04:08
  • Yes, it's power related. Thanks for pointing that out. I noticed that it only happens when the power cable is removed, to save power Ubuntu puts the driver to sleep while on battery. Now that is a reasonable price to pay to lower the energy consumption. And I can always reattach the cable to get rid of the "clicks". – Gabriel Meono Apr 12 '15 at 16:24

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From what I can tell, that is the sound of your speakers "activating". It happens on all of my computers, heck, it happens on ALL computers.

So, you can't really remove that sound, but I may be wrong.

Mani
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  • Older Ubuntu 11.04 and Elementary OS don't have this clicking sound while running on the same machine. This is not a normal behavior even if you are accustomed to it. – Gabriel Meono Apr 11 '15 at 02:15
  • @GabrielMeono Are you sure it's the software? Not your hardware? I've heard it on cheap and old computers, but never when the speakers were replaced with Harman-Kardons... – Fabby Apr 14 '15 at 00:20
  • As @LiveWireBT mentioned this is power related, and depends on the OS. I commented about this below my question. – Gabriel Meono Apr 14 '15 at 20:02