It would appear that Canonical’s developers have been working hard lately to add some important fixes to audio in Ubuntu 17.10, which should significantly improve the usability of Bluetooth and USB speakers in the operating system. For example, it will be possible to choose a high-quality A2DP Bluetooth profile over a low-quality HSP/HFP one. In addition, it should be possible to switch to a connected Bluetooth or USB speaker device automatically. However, some issues are still present at the moment of writing, such as the fact that you won’t be able to use your Bluetooth audio device with a screen reader at the login screen, which is now GDM (GNOME Display Manager) in the latest Ubuntu 17.10 daily builds.