[Freeswitch-users] transcoding GSM with a high ptime

[Anthony Minessale]

other formats also with 120 ms ptime?

You do run the risk of losing a significant amount of audio if you
drop even 1 120ms packet.
The other end would be starved for 5 intervals.
you could try rtp_timer_name=none on the 120ms leg


On Fri, Mar 25, 2011 at 2:22 PM, Dan Lane <null at invalid.name> wrote:
> I need to do a bit more work on this before I have enough information
> to submit a Jira but just on the off-chance anyone else has had this
> issue:
>
> We have handsets using GSM with 120ms ptime but when this gets
> transcoded to something else (for example 20ms PCMU) the resulting
> audio is choppy as though there was a timing error. We only experience
> this with GSM, 120ms packets to 20ms transcoding between other formats
> is fine.
>
> Has anyone else experienced this? I've experienced it on git-e7acd4d
> (our production kit) and f3c33c7 (due to become our next production
> kit)
>
> I'll continue to test it before submitting a Jira but I wanted to know
> if it was just us experiencing this.
>
> Regards,
> Dan
>
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-- 
Anthony Minessale II

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