Those "clicks" we were looking for were 20ms gaps, the codec's ptime, without packet loss or PLC. I can't say if autofix-timing was one of several causes or just an effect. What solved the main problem for our testers was setting the RTP timer from "soft" to "none". With the soft timer on connections between Chrome and FS a bit of jitter causes these dropouts.

Chrome M60 has all kinds of problems related to local sample rates and its jitter buffer, and we ran with the soft timer for years without complaints. I doubt it's a Freeswitch problem. This is just an FYI.


On 08/01/2017 05:23 PM, Anthony Minessale wrote:
Try turning off the autofix-timing in sofia

On Tue, Aug 1, 2017 at 3:45 PM Thomas Auge <lists@virtues.net> wrote:
P.S.: When adding real network packet loss, it gets reported properly and concealed well without any log messages.

On 08/01/2017 04:23 PM, Thomas Auge wrote:
> Hello list,
>
> I'm seeing log entries such as this:
>
> switch_core_media.c:2509 [VBR]: Correcting calculated ptime value from [40] to [20] to compensate for [1] lost packet(s)
>
> They are often accompanied by very audible clicks without any PLC. RTCP does not appear to report related packet loss
> according to Chrome's webRTC stats. This is between SIP and portaudio.
>
> Does anyone know at which stage that packet loss occurs, or what could be causing it?
>
> Thanks,
>
> Thomas
>
>
>
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_________________________________________________________________________
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