Dell computer setup is an elongated process encompassing physical setup, Windows Setup and update, and installation of updated drivers and firmware. However, Dell Support is available on demand, to counteract any related issues.
I browsed through the link and landed on to the page. It was quite informative discussing various reasons behind Dell PC audio issues. Solutions were also present both for beginner and advance users. I went through the solution, the basics were the same as I had implemented while the latter was regarding uninstalling and reinstalling sound driver after diagnosing the driver compatibility.
You are free to choose from any support that best suits your style and convenience. The choices are an over the phone support, where in an expert from Dell would assist you to carry on the troubleshooting and resolution by self. If spooky about this one, try the online support, here you can get assistance through live chats or over the email. If still unsure, give these experts at Dell the green signal to access your PC remotely, which is now possible through encrypted software.