Quantcast

Improve voice quality OpenSim and FreeSwitch

classic Classic list List threaded Threaded
7 messages Options
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Improve voice quality OpenSim and FreeSwitch

rajeswari
Hi,

Using Opensim and freeswitch to improve the voice quality , trying to set the codec to siren14.
For this i followed the instructions as mentioned in http://opensimulator.org/wiki/Freeswitch_Module

From the freeswitch logs it is observed, after the audio codec compare finally the PCMU codec is set.

Please suggest how to set the codec to siren14.


Thanks
Rajeswari.R
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Re: Improve voice quality OpenSim and FreeSwitch

enauman
Actually you are observing what Kai Ludwig describes in the comments at the bottom of the Zaki post you referenced in your previous post (http://zaki.asia/2009/04/28/freeswitch-module-in-opensim/):
"Actually the new FreeSwitch siren14 codec has never been used with SLVoice! Everybody having voicechat with OpenSim is using PCMU without knowing it.

The current combination of OpenSim+SLVoice+SfreeSwitch does not use the siren14 codec. Instead the communication falls back on using PMCU/8000+L16/8000, as it can be seen when analyzing the traffic.

SLVoice asks for “SIREN14-3D”, FreeSwitch offers “G7221″. Not matching makes SLVoice fall back to its other choices wich are PCMU/8000 or PCMA/8000. Though this still works it is not giving the high quality that has to be expected by the siren codec. And even worse the PCMU codec has a permanent up- AND downstream of each 90 kps even when not transmitting.

Still no solution found for this issue … and I dont know if SLVoice is compatible with the G7221 implementation at all."
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Re: Improve voice quality OpenSim and FreeSwitch

Teravus Ovares
I actually hacked up FreeSwitch to return the codec name that SLVoice wanted and use G7221 and it crashed SLVoice.  

The codec that they're using is a proprietary codec named "SIREN14-3D" and the G7221 codec is supposedly equivalent to "SIREN14" but it isn't "SIREN14-3D".

Sorry!

Teravus


On Mon, Nov 8, 2010 at 8:07 PM, enauman <[hidden email]> wrote:

Actually you are observing what Kai Ludwig describes in the comments at the
bottom of the Zaki post you referenced in your previous post
(http://zaki.asia/2009/04/28/freeswitch-module-in-opensim/):
"Actually the new FreeSwitch siren14 codec has never been used with SLVoice!
Everybody having voicechat with OpenSim is using PCMU without knowing it.

The current combination of OpenSim+SLVoice+SfreeSwitch does not use the
siren14 codec. Instead the communication falls back on using
PMCU/8000+L16/8000, as it can be seen when analyzing the traffic.

SLVoice asks for “SIREN14-3D”, FreeSwitch offers “G7221″. Not matching makes
SLVoice fall back to its other choices wich are PCMU/8000 or PCMA/8000.
Though this still works it is not giving the high quality that has to be
expected by the siren codec. And even worse the PCMU codec has a permanent
up- AND downstream of each 90 kps even when not transmitting.

Still no solution found for this issue … and I dont know if SLVoice is
compatible with the G7221 implementation at all."
--
View this message in context: http://opensim-users.2152040.n2.nabble.com/Improve-voice-quality-OpenSim-and-FreeSwitch-tp5716434p5719289.html
Sent from the opensim-users mailing list archive at Nabble.com.
_______________________________________________
Opensim-users mailing list
[hidden email]
https://lists.berlios.de/mailman/listinfo/opensim-users


_______________________________________________
Opensim-users mailing list
[hidden email]
https://lists.berlios.de/mailman/listinfo/opensim-users
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Re: Improve voice quality OpenSim and FreeSwitch

rajeswari
I checked the SLVoice code . I dont seem to understand why when SLcleint logins in , in the sdp siren14-3D is the inidicated codec.
It seems they are implementing siren14 only because vivoxsdk(used by SLvoice) says its complaint to siren14 . Why this incompatibilty?

If atleast SLVoice support g722 it should have been good.

Please suggest.

Thanks
Rajeswari.R
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Re: Improve voice quality OpenSim and FreeSwitch

Olli Aro
Administrator
Hi Rajeswari,

Where did you find the source code for SLVoice?

Regards,

olli

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of rajeswari
Sent: 10 November 2010 06:33
To: [hidden email]
Subject: Re: [Opensim-users] Improve voice quality OpenSim and FreeSwitch


I checked the SLVoice code . I dont seem to understand why when SLcleint
logins in , in the sdp siren14-3D is the inidicated codec.
It seems they are implementing siren14 only because vivoxsdk(used by
SLvoice) says its complaint to siren14 . Why this incompatibilty?

If atleast SLVoice support g722 it should have been good.

Please suggest.

Thanks
Rajeswari.R
--
View this message in context:
http://opensim-users.2152040.n2.nabble.com/Improve-voice-quality-OpenSim-and
-FreeSwitch-tp5716434p5723659.html
Sent from the opensim-users mailing list archive at Nabble.com.
_______________________________________________
Opensim-users mailing list
[hidden email]
https://lists.berlios.de/mailman/listinfo/opensim-users

_______________________________________________
Opensim-users mailing list
[hidden email]
https://lists.berlios.de/mailman/listinfo/opensim-users
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Re: Improve voice quality OpenSim and FreeSwitch

rajeswari
its from open initiative of vivox http://www.vivox.com/open/

Thanks,
Rajeswari.R
Reply | Threaded
Open this post in threaded view
|  
Report Content as Inappropriate

Re: Improve voice quality OpenSim and FreeSwitch

Olli Aro
Administrator
Thanks, but I cannot see any other download links there than the links to
the binaries. With a promise that the source code will be available for
download soon.

Olli

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of rajeswari
Sent: 10 November 2010 08:44
To: [hidden email]
Subject: Re: [Opensim-users] Improve voice quality OpenSim and FreeSwitch


its from open initiative of vivox http://www.vivox.com/open/

Thanks,
Rajeswari.R
--
View this message in context:
http://opensim-users.2152040.n2.nabble.com/Improve-voice-quality-OpenSim-and
-FreeSwitch-tp5716434p5723892.html
Sent from the opensim-users mailing list archive at Nabble.com.
_______________________________________________
Opensim-users mailing list
[hidden email]
https://lists.berlios.de/mailman/listinfo/opensim-users

_______________________________________________
Opensim-users mailing list
[hidden email]
https://lists.berlios.de/mailman/listinfo/opensim-users
Loading...