I have implemented this as I found the voice announcements rather soft even with volume turned up full. It is not dramatic, but does seem to help some. Would be interested in other folks aural perception on how much of a difference this makes (I am not the best judge as partially hearing impaired).

HKCU\Control Pannel\SoundCategories\VoiceCommand1 Then change the value of AttenuationCategory from 3 to 1

(by the way, I have been using this registry editor, which is free, runs on the PC desktop with the 750 connected and seems to work fine: http://www.breaksoft.com/Blog/Utilit...ry_Editor.aspx )