Re: Microphone trouble

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On Fri, 2020-06-12 at 16:08 +0200, berend wrote:
> 
> On Fri, 12 Jun, 2020 at 12:51, Patrick O'Callaghan 
> <pocallaghan@xxxxxxxxx> wrote:
> > On Thu, 2020-06-11 at 22:36 -0700, Samuel Sieb wrote:
> > >  A headset works way better.  You avoid echo and feedback issues and
> > > 
> > >  usually a headset microphone will have better sound than the 
> > > built-in one.
> > 
> > It may depend on the model. I have some Bluetooth earbuds I've been
> > trying to configure for this, and although the headset is recognised 
> > by
> > the system, the mic is not, though the buds work fine on my phone.
> > 
> 
> Bluetooth is a mess for this.  As a headphone it uses A2DP, and then 
> when it
> switches to microphone it becomes HFP, which is usually mono.
> 
> So if you use A2DP to listen (the default), the microphone won't work.  
> If
> you switch to HFP, the microphone will work but you'll likely get worse
> audio.
> 
> You should have HFP available under the audio settings (assuming your
> bluetooth chip has it in firmware)

The buds (Cambridge Audio Melomania) do support A2DP, AVRCP, HSP, and
HFP but the HFP option with pavucontrol-qt is marked 'unavailable'.
Maybe it needs a driver of some kind.

poc
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