Acer Dolby Audio Driver

The lenova website would allow me to download a driver for an acer windows 7 but it isn't the same driver. i have scanned my computer with a number of driver downloaders but none of them have picked up that i need a new dolby driver.. Drivers for products that incorporate dolby audio. dolby creates, licenses, and custom-tunes audio technologies that device makers build into pcs and tablets. support for dolby home theater v4 or dolby advanced audio v2 audio drivers. are you searching for audio drivers for dolby home theater