bluetooth-alsa: a2recv stuttering sound from WM5.0 AKU2.0

Hi Brad

>You will be the first. 

I'm trying to get ride of the WM stuff on my Universal. But
that's
another point :`)

>Did you configure with --enable-fixed? Fixed point
decoding is more
>efficient but it may not behave as well for some codec
settings.

No, haven't tried yet. Will do it and give some feedback
later on.

>Can you figure out what codec settings the wm5 device is
using? Maybe
>they are not getting set in our decoder properly.

I have no idea how to do that, but i will try. Is there a
tool in your
package that can dump the communication between WM and
bluez? Maybe this
dump can help you?

If it is, can you advice me, how to use it?

>Brad

Thanks so far,

Guido



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Guido

I had a look at a2recv. In the block after

 case AVDTP_SET_CONFIGURATION

It seems fishy that we're ignoring several of the sbc
element settings
like subbands... but then I believe those settings also
appear in each
sbc packet. Maybe wm5 is not filling in the packet part
correctly.

I just updated cvs to dump that info in the set
configuration to the
screen. I also limited the channel modes we report as
available to the
two we actually support (mono/stereo).

Brad



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Guido

> It seems fishy that we're ignoring several of the sbc
element settings
> like subbands... but then I believe those settings also
appear in each
> sbc packet. Maybe wm5 is not filling in the packet part
correctly.

it might also be a problem if they don't fill the speed and
channel mode
properly in this initially set configuration step since we
only adjust
these things once.

Brad


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