‘Android gets support for better calling with Bluetooth connection’

According to commits in the AOSP repository, Android will receive support for ‘super wideband’ when calling via a Bluetooth headset. This should improve call quality. Google hasn’t said anything about the new feature yet.

Commit super wideband in AOSP

The change will allow Bluetooth to transmit frequencies between 7000 and 14000Hz when calling, something that is currently not possible. reports Mishaal Rahman. The Bluetooth SIG, the steering group of companies behind the Bluetooth standard, calls this ‘super wideband‘. This allows Bluetooth accessories to transmit sounds between 50Hz and 14000Hz. Rahman relies on commits in AOSP,Android Open Source Project.

To do that, support goes from Headset Profile 1.8 to 1.9. That is not yet a standard, but it is coming. Google seems to be anticipating this by already working on its implementation in the Bluetooth stack for Android. If headsets start supporting it, it will probably soon be available in Android as well. That audio can then be sent via the LC3 codec instead of mSBC. It is unknown when support for super wideband audio will be included in Android’s Bluetooth stack.