I find I am getting the new MBraille audio ducking activated with certain things, with self voicing disabled. It is possibly worse with 0.929 than with 0.928. I just tried regressing to .928. I think the new line sounds are activating the audio ducking, and a few other things.

in 0.929 the dropbox update thing seems to be hitting me every time the app gains focus, which kicks in the audio ducking. So have yet to experience voiceover with no ducking in 0.929. Can get it in 0.928 until I do a new line.