@UpretiRaja
Welcome to HP Community
I have gone through your Post and would like to help
Please run an Audio Test from F2 Diagnostic and let me know if you hear the crackling sound
- Hold the power button for at least five seconds to turn off the Notebook.
- Turn on the computer and immediately press Esc repeatedly, about once every second.
- When the menu appears, press the F2 key.
- On the main menu, click Component Tests and Audio
Thank you
If the information I've provided was helpful, give us some reinforcement by clicking the "Solution Accepted" on this Post and it will also help other community members with similar issue.
KrazyToad
I Am An HP Employee