Hi chuggett,
Welcome to the HP Forums!
I would like to take a moment and thank you for using the forum, it is a great place to find answers. For you to have the best experience in the HP forum, I would like to direct your attention to the HP Forums Guide First Time Here? Learn How to Post and More.
I see that you are unable to turn the Beats Audio on or off. Have you tried running The HP Support Assistant, to aid with looking for updates and troubleshooting. I am not sure this will help but here is a link to Beats Volume Control Direction Setting Does Not Work.
If you would like further assistance, would you please provide the exact model of Envy 14 you have and the Operating System you are running. How Do I Find My Model Number or Product Number?