Venue 11 Pro (5130) speaker sound crackling when screen turned off!

I forgot to mention the specific model (5130) and nobody replied after I told my model as a reply, so I am reposting it

While playing music, when i turn off my screen, the speaker starts crackling.

It may not happen instantly, but happens within a minute.

My guess is that some power options reduce the allotted power for the speaker that it causes crackling.

I would appreciate if other owners of this model could also confirm on this issue.

and of course, I want to see a reply from the Dell Support Team.