** Changed in: pulseaudio (Ubuntu)
       Status: Triaged => In Progress

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https://bugs.launchpad.net/bugs/1838151

Title:
  Poor quality audio with modern Bluetooth headsets in HSP/HFP.  Missing
  wide band speech support.

Status in PulseAudio:
  New
Status in bluez package in Ubuntu:
  Fix Released
Status in linux package in Ubuntu:
  Fix Released
Status in pulseaudio package in Ubuntu:
  In Progress
Status in Arch Linux:
  New

Bug description:
  Bluetooth HSP/HFP audio quality is poor on Ubuntu comparative to all
  other major platforms (Windows, MacOS, ChromeOS, Android, iOS).

  Modern Bluetooth headsets (such as the Bose QC series headphones, many
  others) are capable of using HFP 1.6 with mSBC 16kHz audio encoding.
  As it currently stands, Ubuntu defaults to only supporting HSP
  headsets using 8kHz CVSD, and is incapable of supporting HFP 1.6 at
  this time.

  The ChromiumOS team recently tackled this issue -
  https://bugs.chromium.org/p/chromium/issues/detail?id=843048

  Their efforts may assist in bringing this to Ubuntu, however it
  appears that there are quite a lot of differences considering they
  have developed their own audio server solution etc.

  The Bluetooth Telephony Working Group published the HFP 1.6 spec in
  May 2011 -
  https://www.bluetooth.org/docman/handlers/downloaddoc.ashx?doc_id=238193

  Patches have been proposed in the past for this issue to the kernel
  and PulseAudio:

  PulseAudio: https://patchwork.freedesktop.org/patch/245272/
  Kernel: https://www.spinics.net/lists/linux-bluetooth/msg76982.html

  It appears that the Chromium OS team applied the same kernel patch:
  
https://chromium.googlesource.com/chromiumos/third_party/kernel/+/77dd0cb94c1713a8a12f6e392955dfa64c430e54

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: pulseaudio 1:12.2-2ubuntu3
  ProcVersionSignature: Ubuntu 5.0.0-20.21-generic 5.0.8
  Uname: Linux 5.0.0-20-generic x86_64
  ApportVersion: 2.20.10-0ubuntu27.1
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  jnappi     2777 F.... pulseaudio
  CurrentDesktop: ubuntu:GNOME
  Date: Sat Jul 27 11:08:29 2019
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2017-11-04 (629 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  ProcEnviron:
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  SourcePackage: pulseaudio
  UpgradeStatus: Upgraded to disco on 2019-07-18 (9 days ago)
  dmi.bios.date: 06/07/2016
  dmi.bios.vendor: LENOVO
  dmi.bios.version: R07ET67W (2.07 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20FW000TUS
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40705 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrR07ET67W(2.07):bd06/07/2016:svnLENOVO:pn20FW000TUS:pvrThinkPadT460p:rvnLENOVO:rn20FW000TUS:rvrSDK0J40705WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad T460p
  dmi.product.name: 20FW000TUS
  dmi.product.sku: LENOVO_MT_20FW_BU_Think_FM_ThinkPad T460p
  dmi.product.version: ThinkPad T460p
  dmi.sys.vendor: LENOVO

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