Bluetooth headset/ headphone Ubuntu 20.04 - tested with Sony WH-1000XM4 - shell script

headset-setup-bt.sh

#!/bin/sh

# sudo add-apt-repository ppa:eh5/pulseaudio-a2dp (NOT NEEDED ANYMORE)

sudo apt update
sudo apt install libldac \
                 libavcodec-extra58 \
                 pulseaudio \
                 pulseaudio-module-bluetooth \
                 blueman

# bluez is installed as dependency
                 
# NOTE: pulseaudio 15.0 inclues LDAC, AptX and others (AAC?)

# NOTE: for Sony WH-1000XM4, start blueman and activate XM4 bluetooth search (phone shortcut or using mobile app in 2 connected devices mode). Works with LDAC and HFP/HSP (first is preferred for quality, second is NEEDED for mic input, degrading output)


# Ubuntu 22.04
#   1. Purge everything related to bluetooth : sudo apt purge pulseaudio-module-bluetooth bluetooth "bluez-*" bluez
#   2. Delete /var/lib/blueman and /var/lib/bluetooth
#   3. Reinstall : sudo apt install blueman bluez pulseaudio-module-bluetooth --install-suggests
#   NOTE: only HFP/HSP supports both sound and mic at same time the other profile does not support mic at all. Yes, it will degrade output due to duplex connection (in/out)

sudo apt purge pulseaudio-module-bluetooth bluetooth "bluez-*" bluez
sudo rm -rf /var/lib/blueman
sudo rm -rf /var/lib/bluetooth
sudo apt install blueman bluez pulseaudio-module-bluetooth --install-suggests

It works also for SONY WF-C700N.

Thank you very much @leodutra

SONY WF-C700N kubuntu 23.10, 23.04 ???

Thanks! this fix my problem. But I had to edit the install command as apt says libldac doesn't exists

TY! This fix only handsfree mode in Ubuntu 24.04.1 LTS for WH-1000XM4.