Constant noise in speakers and headphones

Question

On my laptop, Samsung 300V5A-S19 I have the constant noise from the speakers. If I wear headphones, the sound becomes more pronounced (at half volume it mutes the music). The noise level is independent of the volume control. The noise disappears only when volume is completely muted. For the record, the sound is reminiscent of the noise of the waves or something like that.

System information: Ubuntu 12.10, kernel 3.5.0-18

Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 04)

All packages in the system updated.

PS: Following the advice from this message (click) yielded no result.

score 12 · Answer 1 · edited Dec 16 '12 at 01:47

12

The most probable cause of constant noise coming in from the speakers is usually mic boost. In order to disable this:

Open a terminal.
Type alsamixer and press Enter.
Reduce the Mic Boost and Internal Mic Boost to zero. Refer to screenshot.

Screenshot

edited Dec 16 '12 at 01:47

Mochan

1,708

answered Dec 14 '12 at 06:53

Kavya Gokul

131

score 5 · Answer 2 · edited Oct 22 '16 at 18:16

5

The problem goes away after disabling the Auto-Mute mode. Run alsamixer in the terminal, scroll to the right and press up/down to enable or disable Auto-Mute mode

edited Oct 22 '16 at 18:16

hellocatfood

3,379

answered Aug 04 '14 at 22:56

wyliechee

51

score 3 · Answer 3 · answered Jan 27 '17 at 08:48

3

I had this problem and solved it by disabling "loopback" in alsamixer. (open alsamixer, and disable the rightmost control)

answered Jan 27 '17 at 08:48

BartBog

151
7

score 0 · Answer 4 · answered Oct 16 '19 at 15:11

0

That's an open bug. Disabling automute in alsamixer keeps the hiss so it's easier to ignore.

answered Oct 16 '19 at 15:11

Cees Timmerman

631

Constant noise in speakers and headphones

4 Answers4