A pity that I have to look for an extra usb microphone while I spent
$200+ on a fancy bluetooth headset to have conference calls on my
laptop. Reproduced with 3 bluetooth headsets. Quality is so poor on
hsp/hfp that it's unusable. Didn't understand why I couldn't make it
work decently until I found this bug.

Does anyone have a workaround, managed to hack his way out of this bug?

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

Status in linux package in Ubuntu:
Status in pulseaudio package in Ubuntu:
Status in Arch Linux:

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 -

  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 -

  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:

  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
   /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)
   PATH=(custom, no user)
  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.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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