Windows 10 Mobile to support Wideband Speech for much improved Bluetooth voice calls
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Cortana has a pretty useful and accurate voice recognition engine, but for me it all falls apart when I am in the car, when I need her the most, as the crappy Bluetooth voice quality of the regular HandsFree Profile means that most of my commands get misheard.
The good news is that a solution is on the way in Windows 10 Mobile, with the new OS set to support Wideband Speech, a technology which increases the bandwidth available for voice calls to 16 Khz, about the quality of a land-line call.
Wideband Speech, also called HD Voice, is part of the very latest Bluetooth Handsfree Profile version 1.6 and for best quality may require a new Bluetooth Headset with 1.6 support, such as the Plantronics Voyager Legend.
Windows 10 Mobile will also support the aptX audio codec, already available in Lumia Denim, which brings wired-level sound quality to Bluetooth A2DP, so it seems overall there is a lot of improvement coming to Bluetooth Audio in Windows Phone.
