[Freeswitch-users] Call recording quality problems when both legs have different codecs

[Jayesh Nambiar]

Hi just checking if anybody had this similar problem in recordings. If
anyone can atleast have some pointers for me, I'll really appreciate it.

Thanks,

--- Jayesh

On Wed, Jul 4, 2012 at 4:25 PM, Jayesh Nambiar <jayesh.voip at gmail.com>wrote:

> Hi,
> I am using mod_callcenter and have enabled recording_template in my queues
> for all my calls to be recorded. Now there is a problem in quality of
> recorded file when freeswitch answers the call in one codec and connects
> with the agent on a different codec.
> For eg: The incoming call comes in and get connected with G711u codec. The
> caller is listening to MoH while waiting in queue. The agents have G722,
> G711u both enabled on their phones and the sofia has outbound-codec-prefs
> as G722,PCMU. So when the agent answers, the call is connected with G722
> codec.
> So in this case, the recorded file generated plays as if the call is
> getting fast-forwarded. The audio in the call is very fast. Whereas if I
> change the codec of Agent's phone to G711u only the recorded file quality
> is perfect. I don't think it is related to callcenter module anywhere but
> since I am using it in callcenter I have given this example. I think its
> more related to the record function.
> I am running latest GIT version and using mod_shout for recording calls in
> mp3 format. I had the same problems when recording in wav format also. Any
> help regarding this is really appreciated. I have attached two files; one
> which has PCMu on first leg and 722 on other and the second one has PCMu on
> both legs.
>
> Thanks in advance.
>
> --- Jayesh
>
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