The audio output volume decreases steadily

[BleachTail]

Decreases the volume level on its own. When I increase the overall volume almost to maximum, the speakers work fine, but when I decrease the total volume to at least 50%, after a period of time, the volume level drops again.

Drivers have been updated.

A crackling sound is sometimes heard on the right side of the laptop.
This problem since the first start of the laptop.

[banhien]

@BleachTail 

Please perform a clean install Audio software/driver, this should help.

   (a) Download the following driver and save on your computer,
           https://ftp.hp.com/pub/softpaq/sp112001-112500/sp112292.exe

   (b) Go to Device Manager, Sound to uninstall sound driver (Realtek) and reboot,
   (c) Right click downloaded file and select Run as administrator,
   (d) Reboot again.

Regards.

[BleachTail]

It did not solve the problem