[Freeswitch-users] RECORD_STEREO and record_sample_rate aren't working with conference

David P davidswalkabout at gmail.com
Fri Oct 9 20:43:51 UTC 2020

Sure, I filed https://github.com/signalwire/freeswitch/issues/895

In the meantime, we're urgently looking for a workaround, and we're
considering introducing a 2nd FS between our current FS and the peer
destination (Asterisk). We'd remove transcoding from the conference config
of the 1st FS.

In the 1st FS we need to change the sofia gateway path from this:

<action application="conference_set_auto_outcall"


and I'm guessing the path should be " sofia/gateway/freeswitch/" (with a
corresponding sip_profiles/internal/freeswitch.xml) But googling "sofia
gateway freeswitch" doesn't reveal any promising matches.

Is that right?

From: Brian West <brian at freeswitch.com>
> Yah that's probably true, you should file issues on github please.
> On Thu, Oct 8, 2020 at 5:59 PM David P <davidswalkabout at gmail.com> wrote:
>> We're using FSv10.5 on Debian 10 with verto/Opus (i.e. no codec
>> explicitly configured), and we're using a conference. We've tried these
>> settings but they're having no effect on the recorded mp4s:
>> <action application="set" data="RECORD_STEREO=true"/>
>> <action application="set" data="record_sample_rate=44100"/>
>> Instead:
>> 1) The mp4s have the same audio in both channels, contrary to
>> https://freeswitch.org/confluence/display/FREESWITCH/RECORD_STEREO
>> 2) The sampling rate is 8kHz, contrary to
>> https://freeswitch.org/confluence/display/FREESWITCH/record_sample_rate
>> FWIW:
>> a) We noticed that mp4s from a year ago when we were using FS 1.8 also
>> have the same audio on both channels.
>> b) We also have this, and I don't recall why and can't find a description
>> in confluence:
>> <action application="set" data="record_concat_video=true"/>
>> Is it that these are known not to work with conferences, or is there some
>> setting we might have overlooked?
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