Re: [Bluez-devel] report on new bluez headset

[Fabien Chevalier <fchevalier@silicom.fr>]

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Brad Midgley wrote:

>this is only going to work if egika will listen for dbus events to that
>effect. alsa provides nothing for signaling.
>
>  
>
Agreed :-)
However Ekiga already has optionnal support for DBUS. It should be 
possible to patch Ekiga so that it is responsive to headset 
connect/disconnect/button pushed events.

>>>But the sound is not perfect. I hear some frying sound (un petit
>>>gresillement), not very disturbing though but it is absent when I use
>>>it with Ekiga.
>>>      
>>>
>>I noticed that. It's not perfect yet.
>>I'm currently working on improving voice quality in general, but i looks
>>it will end up with a kernel patch.
>>    
>>
>
>We've had quality problems that might be attributed to improperly pacing
>the data sent through sco. I am not sure what the kernel provides--if
>anything--in terms of timing.
>  
>
Could you provide further information on these other quality problems ? 
Just out of curiosity ;-)

>What kind of kernel patch you are looking into?
>  
>
Well, i'm currently implementing a prototype for SCO flow control, so 
that user apps don't have to throttle themselves when sending data over 
a SCO socket. It should *theorically* help to have a continuous stream
of PCM samples flow troughout the stack without interruption. Everything 
is in the *theorically*. I'm just checking
that at the moment.

>alsa has two ways to look for devices. plugins do not show up using the
>api everyone is used to unfortunately.
>  
>
That's too bad, but that's true. It's just a shame alsa IO plugins can't 
appear like sound cards too.

>Brad
>
>
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