Hi my name is ***** ***** I will be the expert working with you today to help and resolve the problem you have posted.
let me know the amount of RAM the computer has.
Check background in the task manager the cpu might be high due to which you are getting cracking noise due to cpu high usage.
Try to close the applications running at the back ground while playing video at the same time.
what it the make and model of the Tablet.
2GB of RAM is the minimum hardware required to run the computer however you must be using windows 7 or above.
I would recommend 4 gb total memory for the computer to watch video or surf the internet online.