[Opensim-users] 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."
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