Crackling sound and noise when using line in

Question

I'm receiving sound using the motherboard's "line in" input and I get a lot of "static" and weird noises.

The funny thing is that, when I try to record using arecord test so I can listen to the playback and check if the noises are there, the noise disappears and sound becomes pure...just by executing arecord test.

Any ideas on how to fix this? It's def a software thing. I listened to the audio coming in and it's pure.

score 0 · Answer 1 · edited Jun 12 '20 at 14:37

0

Pulseaudio may be the culprit:

Use sudo -H gedit /etc/modprobe.d/alsa-base.conf

Search for:

options snd-hda-intel position_fix=1

and change it to:

options snd-hda-intel position_fix=2

Source: Crackling sound from microphone recently, in 13.04

If you are using TLP:

Audio

SOUND_POWER_SAVE_ON_AC=0
SOUND_POWER_SAVE_ON_BAT=1

Timeout (in seconds) for the audio power saving mode (supports Intel HDA, AC97). A value of 0 disables power save.

Hint: this setting can cause slight clicks in sound output.

SOUND_POWER_SAVE_CONTROLLER=Y

Y – powers off the controller together with the sound chip
N – controller active permanently

edited Jun 12 '20 at 14:37

Community

1

answered Nov 13 '18 at 20:42

WinEunuuchs2Unix

102,282

there's no options snd-hda-intel position_fix=1 in my alsa conf – Romeo Mihalcea Nov 13 '18 at 21:39
@RomeoMihalcea I'll keep searching. Hopefully someone else comes up with a better answer first. – WinEunuuchs2Unix Nov 14 '18 at 00:38

Crackling sound and noise when using line in

1 Answers1

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