Headsetd, skype and bluetooth headsets.

Trying to get a plantronics 510s headset working with skype
(among other 
things) and I'm tantalizingly close. Hopefully someone can
help close 
the gap.

I go the headset working for input and output with headsetd
and headset 
plug-in: aplay and arecord -D headset working A-OK - my
.asoundrc 
attached. Then I tried aoss skype - it *almost* worked. I
could hear OK 
thru the headset but my voice was weirdly distorted and
unrecognizable. 
I decided to recompile off the CVS head and now nothing
works I get
  ALSA lib pcm_sco.c:532:(_snd_pcm_sco_open) Unknown field
max_periods

Probably I have some mish-mash of versions installed, it's
too late at 
night.

So what I'd like to know to speed my quest tomorrow:
 * In CVS there are multiple headsetd and alsa-plugins under
plugz, 
btsco and alsa-plugin-sco. Which is the right one?
 * Maybe the distortion indicates some transformation of
sound formats 
is needed - any hints as to what it might be?
 * Is there a better way than aoss for skype? It only shows
alsa 
hardware devices in it's menus, I haven't found a way to
make it use a PCM.
 * Any other  tips on what might be going wrong, or better
ways to 
approach this?

I'll be happy to post my solution to the list if that's
useful.

Thanks,
Alan.

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Alan Conway wrote:
> Trying to get a plantronics 510s headset working with
skype (among other 
> things) and I'm tantalizingly close. Hopefully someone
can help close 
> the gap.
> 
> I go the headset working for input and output with
headsetd and headset 
> plug-in: aplay and arecord -D headset working A-OK - my
.asoundrc 
> attached. Then I tried aoss skype - it *almost* worked.
I could hear OK 
> thru the headset but my voice was weirdly distorted and
unrecognizable. 
> I decided to recompile off the CVS head and now nothing
works I get
>  ALSA lib pcm_sco.c:532:(_snd_pcm_sco_open) Unknown
field max_periods
> 
> Probably I have some mish-mash of versions installed,
it's too late at 
> night.
> 
> So what I'd like to know to speed my quest tomorrow:
> * In CVS there are multiple headsetd and alsa-plugins
under plugz, btsco 
> and alsa-plugin-sco. Which is the right one?
> * Maybe the distortion indicates some transformation of
sound formats is 
> needed - any hints as to what it might be?
> * Is there a better way than aoss for skype? It only
shows alsa hardware 
> devices in it's menus, I haven't found a way to make it
use a PCM.
> * Any other  tips on what might be going wrong, or
better ways to 
> approach this?
> 
> I'll be happy to post my solution to the list if that's
useful.

Yes, please. I had to get a cable headset in order to use
skype. I could 
hear sound and record sound through the bt headset
(logitech), but skype 
  would only get me a beep and nothing more.

aoss didn't work either, maybe I shoudl try it again...

Cheers,
	Gerhard

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Trying to use a plantronics 510s with skype.

Update on my attempts, I've established the setup that
almost works. By 
almost works I mean:
- aplay, arecord -D headset work, quality is fine for
telephone use.
- aoss skype almost works: I can hear the test call clearly,
I can 
record a message but when it is played back my voice is
garbled beyond 
recognition.

My next step is to fiddle with pcm settings - I've seen
.asoundrc 
scripts for skype and dmix that do conversions between 8 and
16 bit 
formats and other stuff I know nothing about (but am afraid
I'm gonna 
learn). Here are the details of how I got this far:

== DETAILS: based on btsco/docs/build.html from CVS,
slightly modified.

install libsbc:

Note: When asking for a password simply press Enter.

cvs -d:pserver:anonymoussbc.cvs.sourceforge.net:/cvsroot/sbc login
cvs -d:pserver:anonymoussbc.cvs.sourceforge.net:/cvsroot/sbc co sbc
cd sbc
./bootstrap
./configure --prefix=/usr
make
sudo make install

install bstco:

cvs 
-d:pserver:anonymousbluetooth-alsa.cvs.sourceforge.net:/cvsroot/bluetooth
-alsa 
login
cvs 
-d:pserver:anonymousbluetooth-alsa.cvs.sourceforge.net:/cvsroot/bluetooth
-alsa 
co btsco
cd btsco
./bootstrap
# Note I added CFLAGS in ./configure. Without them the
plugin emits
# a torrent of debug messages that slow it down and ruin the
sound quality.
# -NDEBUG is essential, -03 is just for good luck.
./configure --prefix=/usr --enable-alsaplugin
CFLAGS="-NDEBUG -03"
make
sudo make install

** Using from skype
My .asoundrc is copied from btsco/alsa-plugins/asound.conf
with the
headset address replaced by my own and the following
addition for aoss:

# Use headset via aoss emulation for skype.

pcm.dsp0 {
   type plug
   slave.pcm "hw_headset"     
}

Full .asoundrc attached. Run skype as "aoss skype"
(you need alsa-oss 
package installed.)


== NOTES

The instructions at http
://bluetooth-alsa.sourceforge.net/build.html did 
*not* work for me. The plugz version of the plugin requires
a different 
.asoundrc (based on plugz/asound.conf) but aplay -D headset
gave me:

[aconwayscooter plugz]$ aplay -D headset
/usr/share/sounds/startup3.wav
Playing WAVE '/usr/share/sounds/startup3.wav' : Signed 16
bit Little 
Endian, Rate 44100 Hz, Stereo
aplay: set_params:909: Channels count non available

Cheers,
Alan.

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