[Freeswitch-users] mod_skypiax - help needed with modified snd-dummy (one way audio)

[Giovanni Maruzzelli]

Ciao Peter

one instance of snd-dummy "customized" is enough for 64 instances of
skype clients, no need (and do not works) with more instances of
snd-dummy-customized.

Maybe you got the one-way problem because of kernel at 250HZ (don't
know). It uses to works well on a tickless kernel at 100HZ (eg: ubuntu
8.04).

Or maybe you have to check and modify which sound devices the skype
clients are using (try to check that with snd-summy-custom loaded,
maybe with the ssh -X trick (as in the wiki page).

To load more than one snd-dummy-original (the non modified one), you
do this with the modprobe command, as in:

rmmod snd-dummy
modprobe snd-dummy enable=1,1,1

this command will enable three instances of snd-dummy original, so
you'll have three fake soundcards, and you'll have to setup each group
of 8 skype instances to use sound devices from one fake soundcard, RG:
no more than 8 skype client instances can use one instance of fake
soundcard.

Also, please update the mod_skypiax code (svn up in its directory) I
just committed some improvements.

If you have any other doubts, or need more info, don't hesitate to
write the mailing list again,

ciao for now,

-giovanni



On Wed, Jan 27, 2010 at 4:01 PM, Peter P GMX <Prometheus001 at gmx.net> wrote:
> I have mod_skypiax working nicely so far with 2 Skype channels. Thanks
> to all contributors, excellent work!
>
> In order to have more than 8 channels working, I have followed the
> instructions in
> http://wiki.freeswitch.org/wiki/Skypiax_Skype_Endpoint_and_Trunk
> and compiled alsa-driver-1.0.20 with the modified dummy.c file. (System
> ist Debian 5.0R3)
> It compiled well however when I start snd-dummy I only have
> one-way-audio and my logs show
>
> Jan 27 15:28:41 skype kernel: [ 3984.318403] snd-dummy skypiax driver,
> /usr/src/alsa-driver-1.0.20/drivers/../alsa-kernel/drivers/dummy.c:920
> working on a machine with 250HZ kernel
> Jan 27 15:28:50 skype kernel: [ 3994.795786] process `skype' is using
> obsolete setsockopt SO_BSDCOMPAT
> Jan 27 15:28:56 skype kernel: [ 4005.289907] __ratelimit: 490 messages
> suppressed
> Jan 27 15:29:01 skype kernel: [ 4012.458310] process `skype' is using
> obsolete setsockopt SO_BSDCOMPAT
> Jan 27 15:29:01 skype kernel: [ 4013.326290] __ratelimit: 499 messages
> suppressed
> If I reinstall alsa from deb everything sworks fine again (of course
> with the current limitations).
>
> First question: Has anybody had this issue before? How can I solve this?
>
> Second question:
> As I do not need 64 channels or more: how do I manage, that Skype
> instances 9..15 use a second instance of snd-dummy as addressed in the wiki?
>
> Best regards
> Peter
>
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-- 
Sincerely,

Giovanni Maruzzelli
Cell : +39-347-2665618