[Bug 1738404] Re: Bluetooth sound extreme low quality

[Carlos Blanquer Bogacz]

Hi Daniel,


- Cambridge Silicon Radio dongles are historically unreliable. I found
my Bluetooth devices were excessively buggy with them. And other people
found the same. Try a different brand if you can.

I have reverted back to Ubuntu 17.04 some minutes ago and the 3x bluetooth
audio devices work again correctly, as they did before and as they do with
my android devices.
So I do not think, this is related to any hardware issue.
I have then installed all the updates and that is stilll working.


- Can you please check what audio profile you're using in sound settings
for Bluetooth? Make sure it is A2DP for the best quality. Not HSP/HFP.
Is the problem just the wrong profile defaulting?

The only available profile was A2DP in 17.10, which I already used.
HSP/FSP did not appear in the list.

-----------
I also tested form an USB with 17.10 for installation, same issues.


I think I am not doing any other actions, as my immediate incident is
solved by reverting to the former version.
I hope the actual problem get fixed until next Ubuntu stable release.

Best regards,

Carlos Blanquer Bogacz
_______________________________________

水に流す mizu ni nagasu : let us flow in the water


On 18 December 2017 at 11:45, Daniel van Vugt <daniel.van.vugt at canonical.com
> wrote:

> A few ideas come to mind:
>
> - Cambridge Silicon Radio dongles are historically unreliable. I found
> my Bluetooth devices were excessively buggy with them. And other people
> found the same. Try a different brand if you can.
>
> - Can you please check what audio profile you're using in sound settings
> for Bluetooth? Make sure it is A2DP for the best quality. Not HSP/HFP.
> Is the problem just the wrong profile defaulting?
>
> - Bug 405294
>
> - Kernel regressions... Please try an older kernel more in line with
> what 17.04 had (kernel version 4.10 or older): http://kernel.ubuntu.com
> /~kernel-ppa/mainline/?C=N;O=D
>
>
> Probably less relevant:
>
> - A regression in bluetooth in 17.10; sounds like it is Intel specific
> though: bug 1729389
>
> ** Changed in: bluez (Ubuntu)
>        Status: New => Incomplete
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1738404
>
> Title:
>   Bluetooth sound extreme low quality
>
> Status in bluez package in Ubuntu:
>   Incomplete
>
> Bug description:
>   I upgraded today from ubuntu 17.04 to ubuntu 17.10.
>
>   I use 3 different bluetooth audio devices ( BT earphones, BT speaker,
>   BT BOSE Soundlink speaker) , all of them worked properly on 17.04.
>
>   Since the upgrade, the sound gets continuous interruptions/cracking.
>   These sound interruptions and cracking are so annoying that I cannot
> keep on listening to music.
>   I could relate this to the fact that a new BT stack has replaced the
> former in Ubuntu.
>
>   If I use wired devices (hdmi connected screen+audio, the sound quality
> is good and as before) so the issue is related to the use of the new
> Bluetooth stack.
>   I have not found a way to parameterise it neither.
>
>   I have not found any similar report. "apport" seems not ot exist in
>   thise version, I cannot find and execute it.
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/
> 1738404/+subscriptions
>

-- 
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https://bugs.launchpad.net/bugs/1738404

Title:
  Bluetooth sound extreme low quality

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