Isn't this because HSP is not handled by pulse audio but ofono since PA11.0?
https://www.freedesktop.org/wiki/Software/PulseAudio/Notes/11.0/ Ofono is HSP 1.6 and wideband audio 16khz but ubuntu conf doesn't implement? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1838151 Title: Poor quality audio with modern Bluetooth headsets in HSP/HFP. Missing wide band speech support. To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1838151/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
