Many premium Acer models come with Dolby Audio software pre-installed. It provides a set of audio presets designed to optimize sound for movies, music, games, and voices. If you have this software, you will see a "Dolby Audio" icon in your taskbar or system tray. Keeping your main audio driver updated is often a prerequisite for Dolby software to function correctly.
The Ultimate Guide to Acer Sound Drivers: Troubleshooting, Installing, and Updating Your Audio acer sound drivers
Right-click the Windows button and select Device Manager . Many premium Acer models come with Dolby Audio
Open and expand Sound, video and game controllers . Right-click your audio device and select Properties . Navigate to the Driver tab at the top of the popup window. acer sound drivers