@63 - your headset likely doesn't support mSBC (16 KHz), only CVSD (8KHz) in HFP/HSP mode. If that is the case, any fix - using a USB soundcard as you did, or a software fix (which this page is tracking) isn't gonna help.
If it does support mSBC, 1Mii B10, and Avantree Leaf, Creative BT-W3 should be able to give decent quality audio. The definition of 'decent' varies of course. Most people in this age and time wouldn't be happy with 8 KHz (else, this page wouldn't exist), but mSBC is decent enough for most people, at least for typical voice calls. You can check the sampling frequency used very easily using Audacity > Record a few seconds using the mic in question > Analyze > Plot Spectrum. Note that Audacity plots in log scale for freq by default. If the highest freq component is just below 4 KHz, it is using CVSD @ 8 KHz sampling, and your headset is the likely culprit. If the highest component is 8 KHz, it is using mSBC @ 16 KHz. If you think that is not good enough, your options are limited. You can use FastStream (FS) which is supported only by a limited number of headsets, as well as by dongles such as Leaf, 1Mii B10, Creative BT-W2. No OS afaik supports it, so you can't use the dongle. Many devices have buggy implementations of FS. AptX LL also supposedly has bidirectional audio support, but the voiceback part is not supported by any device that I know of. ** Bug watch added: github.com/Arkq/bluez-alsa/issues #29 https://github.com/Arkq/bluez-alsa/issues/29 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1838151 Title: Poor quality audio with modern Bluetooth headsets in HSP/HFP. Missing wide band speech support (Bluetooth A2DP codecs). To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1838151/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
