Bluetooth headphones and wifi video streaming causes buffering

[Phil Long]

When using headphones via bluetooth and streaming a youtube video in Chrome, unacceptable buffering occurs.
Switch off bluetooth and the video streams as expected.
Switch on bluetooth and video buffers.
I tried this several times with consistent results.
Hardware:
DELL Inspiron N5110
processor: Intel® Core™ i3-2350M CPU @ 2.30GHz × 4
64 bit.
O.S. Ubuntu 18.04.3
Headphones: mixcder

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: alsa-base 1.0.25+dfsg-0ubuntu5
ProcVersionSignature: Ubuntu 5.0.0-25.26~18.04.1-generic 5.0.18
Uname: Linux 5.0.0-25-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.7
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: ftf 1575 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Thu Aug 15 14:56:36 2019
InstallationDate: Installed on 2019-03-11 (156 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Title: Bluetooth sound card not detected
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/30/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A09
dmi.board.name: 034W60
dmi.board.vendor: Dell Inc.
dmi.board.version: A09
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvrA09:bd09/30/2011:svnDellInc.:pnInspironN5110:pvrNotSpecified:rvnDellInc.:rn034W60:rvrA09:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Inspiron N5110
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: Not Specified
dmi.sys.vendor: Dell Inc.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.