Home / ubuntu / Questions / 594552
Accepted
senthor
Asked: 2015-03-10 03:05:23 +0800 CST

Realtek ALC892: Crackling sound when starting music

  • 772

I'm using a board with Realtek ALC892 for music playback. I installed the Realtek HDA drivers (3.0). Using shairport-sync with hardware mixer.

Whenever I start audio playback I get a crackling noise first, as if the soundcard gets activated. Sounds like plugging in a headphone jack while speakers are on. Occurs after a few seconds of stopped playback, too, and sometimes, when altering the master or front volume from within alsamixer.

Any idea as to why this happens? Is it shairport-syncs fault?

Thanks!

sound

1 Answers

  1. Best Answer

    I found the culprit: The sound card somehow came in powersaving mode, and always activated / deactivated on starting / stopping playback. Deactivating the powersaving mode was the solution: Edit /etc/rc.local and add before the exit-line:

    echo 0 > /sys/module/snd_hda_intel/parameters/power_save

    • 1