[Freeswitch-users] Freeswitch stereo question(s)

Chris Mandra mandra at gmail.com
Wed Jun 24 02:46:16 MSD 2015


Hi Anthony - thanks for the info.
So, "channels" is already set to 2 in
conf/autoload_configs/conference.conf.xml

 <profile name="video-mcu-stereo">

      <param name="domain" value="$${domain}"/>

      <param name="rate" value="48000"/>

      <param name="channels" value="2"/>

      <param name="interval" value="20"/>

      <param name="energy-level" value="200"/>


Does freeswitch test for actual stereo (as opposed to two channel mono) and
if it sees 2 chan mono does it downsample to mono?

thanks!

chris

On Tue, Jun 23, 2015 at 6:26 PM, Anthony Minessale <
anthony.minessale at gmail.com> wrote:

> Yes its interleaved.
>
> If you are calling into a conference you will have to run the conference
> in stereo or the channel will be downsampled to mono to match.
> Set channels to 2 in the mod_conference profile.
>
>
>
>
> On Tue, Jun 23, 2015 at 5:21 PM, Chris Mandra <mandra at gmail.com> wrote:
>
>> Hi guys, I have another question about freeswitch, conferences and stereo.
>>
>> When I make a webrtc call into 3500 on my freeswitch server, mod_ladspa
>> is reporting the number of samples as 1920 (20 ms stereo interleaved I
>> assume) fine for a few seconds, and then the number of samples drops to 960
>> (20 ms mono) Any idea why this might be happening?
>>
>> Also, I have been assuming that stereo in freeswitch is interleaved - is
>> that the case? Is that assumption incorrect? If not interleaved, how does
>> fs handle stereo.
>>
>>
>> thanks!
>> chris
>>
>>
>> _________________________________________________________________________
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>
>
>
> --
> Anthony Minessale II       ♬ @anthmfs  ♬ @FreeSWITCH  ♬
>
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>
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-- 
mandra
c:410.258.5281
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