How to fix automatic volume changing and crackling sound problem while playing music in Ubuntu and Linux mint

Hi all here is a solution for crackling sound and auto volume change problem while playing music with full volume level in Ubuntu and Linux Mint (Any Version) .

Follow the below steps to get the crystal clear sound with volume set to 100%.

1. Go to Terminal (CTRL+ALT+T).
2. Type alsamixer and hit enter
3. Disable the Auto-Mute option as shown in the picture.
4. That's it now you can enjoy your music without any disturbance.