Score:1

How can I find out which Bluetooth codec is being used between Ubuntu and my audio devices?

li flag

I want to check that Ubuntu is using the best available codecs to communicate with my Bluetooth audio devices. How can I find out which codecs are being used?

cn flag
Headset Head Unit (HSP/HFP) or "High Fidelity Playback (A2DP). Check the sink at the sound settings.
santa avatar
li flag
So what do I need to do exactly? Do I need to open a particular app to get this information? The main Ubuntu sound settings only tell me the name of the device. I have Sound Switcher Indicator installed, but that only tells me the name of the device and its Bluetooth address.
cn flag
hmmm I expected the sink to be shown there (my system does ;) but ... the tool to install is pavucontrol. It will list anything you want about sound.
santa avatar
li flag
Thank you! pavucontrol indeed has this information. It is under the "Configuration" tab.
Score:0
kr flag

You can check the used Bluetooth Profile:

  • Headset Head Unit (HSP/HFP) profile uses a low sound quality codec (CVSD) optimized for speech
  • High Fidelity Playback (A2DP) speaks for itself :)

Look under Settings / Sound / Output tab: screenshot of Settings / Sound / Output

Or you may install pavucontrol (PulseAudio Volume Control) and check under the Configuration tab: screenshot of pavucontrol / Configuration

kr flag
H/T @Rinzwind whose comments helped a lot to come up with this answer
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