Peter has written to us complaining of an issue with with how navigation apps handle voice guidance in Windows Phone 8.1.
In WP8.1 voice guidance is delivered, like a phone call, through the Bluetooth Voice Profile. This ensures wide compatibility with older car kits, which is of course good, but introduced a problem for users with newer car kits with Bluetooth A2DP support.
Previously for them all audio was routed via A2DP, including voice guidance, but now the app switches between A2DP and Bluetooth Voice, introducing a delay which means some parts of the voice guidance is lost.
Given the benefits to some but the issues for others, Peter suggests how voice guidance is handled should really be an option, rather than working only one way.
