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#1 2014-04-23 12:34:53
- lorenzo000
- Member
- Registered: 2014-04-23
- Posts: 6
background audio noise when playing youtube videos
Hi,
I have an Asus M50IJ laptop.
As soon as I start playing a youtube video a background noise starts
Iif I pause the video and play a local file after a while it disappears.
If I open the local file just after having paused the video it doesn't work, I have to wait something like 10 seconds.
And the noise starts again after making the yt video play again.
aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: VT1708S Analog [VT1708S Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 2: VT1708S Alt Analog [VT1708S Alt Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0I don't know how to fix this problem, that seems to happen also with new live distros like ubuntu.
It's not a hardware problem, as it works fine with windows and as I said it does not happen with every audio source.
Thanks in advance.
Output of lsof | grep snd without playing sound (there may be noise or not, the output is the same)
cinnamon- 394 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gdbus 394 404 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
dconf 394 409 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gmain 394 444 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
pulseaudi 412 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
pulseaudi 412 lorenzo 16u CHR 116,6 0t0 8202 /dev/snd/controlC0
pulseaudi 412 lorenzo 23u CHR 116,6 0t0 8202 /dev/snd/controlC0
pulseaudi 412 lorenzo 29u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
alsa-sink 412 445 lorenzo 16u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo 23u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo 29u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
alsa-sour 412 446 lorenzo 16u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo 23u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo 29u CHR 116,6 0t0 8202 /dev/snd/controlC0
gconf-hel 447 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
cinnamon 484 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gdbus 484 485 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
dconf 484 486 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 484 487 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
cinnamon 484 488 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gmain 484 511 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 484 856 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
chrome 549 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
chrome 549 564 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
NetworkCh 549 565 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
inotify_r 549 566 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
AudioThre 549 569 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 549 570 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CrShutdow 549 571 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_DB 549 572 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Fi 549 573 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Fi 549 574 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Pr 549 575 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Ca 549 576 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_IO 549 577 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
IndexedDB 549 578 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
dconf 549 579 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Proxy 549 580 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserWa 549 581 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gdbus 549 582 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserBl 549 584 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserBl 549 585 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Proxy 549 586 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Sa 549 587 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserBl 549 589 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
NSS 549 590 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gmain 549 591 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Hi 549 593 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
renderer_ 549 594 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
extension 549 604 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Sy 549 611 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
WorkerPoo 549 695 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 697 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 698 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 699 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 704 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 705 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
ppapi_cra 549 719 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gpu-proce 549 730 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
LevelDBEn 549 1350 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)playing sound
cinnamon- 394 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gdbus 394 404 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
dconf 394 409 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gmain 394 444 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
pulseaudi 412 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
pulseaudi 412 lorenzo mem CHR 116,3 8199 /dev/snd/pcmC0D0p
pulseaudi 412 lorenzo 16u CHR 116,6 0t0 8202 /dev/snd/controlC0
pulseaudi 412 lorenzo 23u CHR 116,6 0t0 8202 /dev/snd/controlC0
pulseaudi 412 lorenzo 29u CHR 116,6 0t0 8202 /dev/snd/controlC0
pulseaudi 412 lorenzo 30u CHR 116,6 0t0 8202 /dev/snd/controlC0
pulseaudi 412 lorenzo 31u CHR 116,3 0t0 8199 /dev/snd/pcmC0D0p
pulseaudi 412 lorenzo 40r CHR 116,33 0t0 1762 /dev/snd/timer
alsa-sink 412 445 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
alsa-sink 412 445 lorenzo mem CHR 116,3 8199 /dev/snd/pcmC0D0p
alsa-sink 412 445 lorenzo 16u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo 23u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo 29u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo 30u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sink 412 445 lorenzo 31u CHR 116,3 0t0 8199 /dev/snd/pcmC0D0p
alsa-sink 412 445 lorenzo 40r CHR 116,33 0t0 1762 /dev/snd/timer
alsa-sour 412 446 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
alsa-sour 412 446 lorenzo mem CHR 116,3 8199 /dev/snd/pcmC0D0p
alsa-sour 412 446 lorenzo 16u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo 23u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo 29u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo 30u CHR 116,6 0t0 8202 /dev/snd/controlC0
alsa-sour 412 446 lorenzo 31u CHR 116,3 0t0 8199 /dev/snd/pcmC0D0p
alsa-sour 412 446 lorenzo 40r CHR 116,33 0t0 1762 /dev/snd/timer
gconf-hel 447 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
cinnamon 484 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gdbus 484 485 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
dconf 484 486 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 484 487 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
cinnamon 484 488 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gmain 484 511 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 484 856 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
chrome 549 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
chrome 549 564 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
NetworkCh 549 565 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
inotify_r 549 566 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
WorkerPoo 549 567 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
WorkerPoo 549 568 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
AudioThre 549 569 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 549 570 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CrShutdow 549 571 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_DB 549 572 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Fi 549 573 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Fi 549 574 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Pr 549 575 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Ca 549 576 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_IO 549 577 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
IndexedDB 549 578 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
dconf 549 579 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Proxy 549 580 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserWa 549 581 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gdbus 549 582 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserBl 549 584 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserBl 549 585 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Proxy 549 586 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Sa 549 587 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
BrowserBl 549 589 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
NSS 549 590 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gmain 549 591 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Hi 549 593 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
renderer_ 549 594 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
extension 549 604 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
Chrome_Sy 549 611 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
WorkerPoo 549 695 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 697 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 698 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 699 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 704 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
CachePool 549 705 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
ppapi_cra 549 719 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
gpu-proce 549 730 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
threaded- 549 1094 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)Diff:
5a6
> pulseaudi 412 lorenzo mem CHR 116,3 8199 /dev/snd/pcmC0D0p
8a10,12
> pulseaudi 412 lorenzo 31u CHR 116,6 0t0 8202 /dev/snd/controlC0
> pulseaudi 412 lorenzo 40u CHR 116,3 0t0 8199 /dev/snd/pcmC0D0p
> pulseaudi 412 lorenzo 41r CHR 116,33 0t0 1762 /dev/snd/timer
9a14
> alsa-sink 412 445 lorenzo mem CHR 116,3 8199 /dev/snd/pcmC0D0p
12a18,20
> alsa-sink 412 445 lorenzo 31u CHR 116,6 0t0 8202 /dev/snd/controlC0
> alsa-sink 412 445 lorenzo 40u CHR 116,3 0t0 8199 /dev/snd/pcmC0D0p
> alsa-sink 412 445 lorenzo 41r CHR 116,33 0t0 1762 /dev/snd/timer
13a22
> alsa-sour 412 446 lorenzo mem CHR 116,3 8199 /dev/snd/pcmC0D0p
16a26,28
> alsa-sour 412 446 lorenzo 31u CHR 116,6 0t0 8202 /dev/snd/controlC0
> alsa-sour 412 446 lorenzo 40u CHR 116,3 0t0 8199 /dev/snd/pcmC0D0p
> alsa-sour 412 446 lorenzo 41r CHR 116,33 0t0 1762 /dev/snd/timer
24a37
> pool 484 1652 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
62a76,88
> vlc 1646 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> threaded- 1646 1649 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1650 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1653 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1654 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1656 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1657 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1658 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1659 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1660 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1661 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1662 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)
> vlc 1646 1663 lorenzo mem REG 0,16 30136 /usr/lib/libsndfile.so.1.0.25 (path dev=0,18)Last edited by lorenzo000 (2014-04-25 13:24:37)
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#2 2014-04-23 19:05:55
- Pse
- Member
- Registered: 2008-03-15
- Posts: 415
Re: background audio noise when playing youtube videos
On one of my computers this happens when playing videos through Chromium, but everything works fine in Firefox. I guess there is some sort of driver problem with certain ways of sending audio through Pulse or ALSA.
Last edited by Pse (2014-04-23 19:06:10)
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#3 2014-04-23 21:22:44
- karol
- Archivist
- Registered: 2009-05-06
- Posts: 25,440
Re: background audio noise when playing youtube videos
Play a local file and download some bigger file from the internet to see if the noise is caused by network activity.
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#4 2014-04-24 09:56:42
- lorenzo000
- Member
- Registered: 2014-04-23
- Posts: 6
Re: background audio noise when playing youtube videos
Ok, this has nothing to do with Chrome (the same thing happens with firefox) or with network in general.
I've found some local files that cause the same problem, but the strange thing is that they use the same audio and video codecs that the others use (h264 and MPEG AAC audio).
I've also noticed that I don't have to wait those 10 seconds before opening a "good" file with firefox to make the noise go away (same thing with "bad" local files), so that must be something related to how chrome works.
Anyways maybe a bug on a new decoder? But that does not explain the fact that the noise continues when closing a "bad" file.
Is there any way to monitor where audio that is being reproduced is coming from, to see if there is any audio source during the noise?
Thanks
Last edited by lorenzo000 (2014-04-24 10:00:53)
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#5 2014-04-24 10:50:12
- emeres
- Member
- Registered: 2013-10-08
- Posts: 1,570
Re: background audio noise when playing youtube videos
Is there any way to monitor where audio that is being reproduced is coming from, to see if there is any audio source during the noise?
If you are using alsa only, this should be sufficient:
fuser -v /dev/snd/*Edit your first post and put output into code tags.
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#6 2014-04-24 12:08:44
- lorenzo000
- Member
- Registered: 2014-04-23
- Posts: 6
Re: background audio noise when playing youtube videos
I've used "lsof | grep snd" as stated here http://superuser.com/questions/47146/ho … d-in-linux cause fuser -v /dev/snd/* just outputs
Specified filename /dev/snd/by-path is not a mountpoint.
Specified filename /dev/snd/controlC0 is not a mountpoint.
Specified filename /dev/snd/hwC0D0 is not a mountpoint.
Specified filename /dev/snd/pcmC0D0c is not a mountpoint.
Specified filename /dev/snd/pcmC0D0p is not a mountpoint.
Specified filename /dev/snd/pcmC0D2p is not a mountpoint.
Specified filename /dev/snd/seq is not a mountpoint.
Specified filename /dev/snd/timer is not a mountpoint.both when playing or not playing a file.
Anyways there is no difference from when there is the noise and when there is not with "lsof | grep snd".
Updated the first post though.
I'm thinking it's some sort of bug of pulse or alsa, mmh
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#7 2014-04-24 12:27:03
- emeres
- Member
- Registered: 2013-10-08
- Posts: 1,570
Re: background audio noise when playing youtube videos
I'm thinking it's some sort of bug of pulse or alsa
Does the same happen with pulseaudio killed?
Make sure you can play multiple sounds with speaker-test first, but according to your information, it should work without any setup.
Last edited by emeres (2014-04-24 12:28:15)
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#8 2014-04-24 13:17:36
- lorenzo000
- Member
- Registered: 2014-04-23
- Posts: 6
Re: background audio noise when playing youtube videos
Here is what happens:
if I close pulseaudio and start one of the "bad" files with vlc, audio is ok, without noise 
if I kill pulseaudio while the video is running or after I close it, the audio stops while the noise continues until I reopen the video (at that point I here fine audio).
Anyways the noise restarts as soon as I restart pulseaudio.
It's like pulseaudio makes the noise start but the noise does not stop automatically closing it.
What should I do? Downgrade it?
Thanks for the support
edit: yes, I can play multiple audio with and without pulse
Last edited by lorenzo000 (2014-04-24 13:18:56)
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#9 2014-04-24 13:35:43
- lorenzo000
- Member
- Registered: 2014-04-23
- Posts: 6
Re: background audio noise when playing youtube videos
I've downgraded to pulseaudio 4.0-2
there is still noise, and it continues closing a "bad" file and opening a "good" one.
That is, it's worst than before :S
Does it mean the problem is on the driver?
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#10 2014-04-24 14:02:49
- emeres
- Member
- Registered: 2013-10-08
- Posts: 1,570
Re: background audio noise when playing youtube videos
Either that or there is a mic/input open. Check alsamixer/pavucontrol for mic-gain/boost, in other words disable all input. If noise continues, check module options for your card. And if you still have noise, contact alsa developers through alsa-user mailing list.
Edit: After rereading, it seems more probable to be related to pulseaudio only, but checking those options might prove useful.
Other thing is your fuser output. Are you in the audio group? Does the same happen when running fuser as root?
Last edited by emeres (2014-04-24 17:41:43)
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#11 2014-04-24 17:22:33
- Pse
- Member
- Registered: 2008-03-15
- Posts: 415
Re: background audio noise when playing youtube videos
Have you tried this?
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#12 2014-04-25 10:19:55
- emeres
- Member
- Registered: 2013-10-08
- Posts: 1,570
Re: background audio noise when playing youtube videos
The fuser output seems to be related to a recent update of psmisc package to 22.21-1. Downgrading to 22.20-1 works like expected.
PS. Your first command is still without code tags. It is difficult to read and others might use this information too. Please correct that.
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#13 2014-04-25 13:33:15
- lorenzo000
- Member
- Registered: 2014-04-23
- Posts: 6
Re: background audio noise when playing youtube videos
Have you tried this?
that did not work too
well, is there any problem on keeping pulseaudio off? 
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