[Freeswitch-users] OPUS - is FS ignoring incoming FAC packets?

[Brian West]

rtp_jitter_buffer_during_bridge=true, all the stuff in OPUS to process,
manage and deal with FEC requires a jitter buffer to process it.

/b


On Wed, Jan 26, 2022 at 12:16 PM David Villasmil <
david.villasmil.work at gmail.com> wrote:

> Hello all,
> Wondering if anyone's seen this scenario:
>
> With 15% packet loss, FEC enabled.
>
> - sip -> pstn:
>   -- We're seeing FEC out and in
>   * client (OPUS) --> FS --> (PCMU/A) B-leg - Result: Choppy Audio
>   * client (OPUS) <-- FS <-- (PCMU/A) B-leg - Result: Very good audio
>
>   * client (OPUS) --> FS --> client (OPUS) - Result: Very good audio
>   * client (OPUS) <-- FS <-- client (OPUS) - Result: Very good audio
>
> It's like FS is ignoring the incoming FEC when transcoding.
> I have a small jitterbuffer 20:100:20
>
> Any ideas?
>
>
> David Villasmil
> email: david.villasmil.work at gmail.com
> phone: +34669448337
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