The next big Windows 10 update improves Bluetooth audio with AAC support Share this story Illustration by William Joel / The Verge Microsoft’s next big Windows 10 update for later this year will include some important audio improvements. The OS will finally get support for Advanced Audio Coding (AAC) over Bluetooth, which will give Windows users even more choice for Bluetooth headphones and speakers. Windows Insiders can test the changes right now. Windows has long only supported SBC and AptX over Bluetooth, but AAC support also unlocks the potential for better audio quality for Apple’s range of headphones and through iTunes or Apple Music on Windows. Apple was previously hiring engineers to build the “next generation of media apps for Windows,” and AAC support would be a solid improvement for any potential Apple Music app, or just streaming through the browser.