[Freeswitch-users] Mono To Stereo

Brian West brian at freeswitch.org
Thu Jun 11 17:36:21 MSD 2015


Chris,

I think you're correct about sprop-stereo, but I suspect some testing would
need to be done to verify its all 100% correct.



On Thu, Jun 11, 2015 at 8:19 AM, Chris Mandra <mandra at gmail.com> wrote:

> Actually - I think I figured it out - using opus if I sent  this:
>
> "a=rtpmap:111 opus/48000/2
> a=fmtp:111 minptime=10; useinbandfec=1; stereo=1; sprop-stereo=1"
>
> that would mean "using the opus codec, min packet time 10, forward error
> correction on, stereo receive on,  stereo send on"
>
> so, if I set sprop-stereo=0 or omit it entirely, it should mean rcv stereo
> send mono, I think. Agree?
>
> chris
>
> On Thu, Jun 11, 2015 at 8:30 AM, Chris Mandra <mandra at gmail.com> wrote:
>
>> Is that something you set up in the local sdp (all guidance appreciated)
>>
>>
>> On Thursday, June 11, 2015, Victor Medina <victor.medina at cibersys.com>
>> wrote:
>>
>>> Yes
>>> On Jun 11, 2015 7:21 AM, "Chris Mandra" <mandra at gmail.com> wrote:
>>>
>>>> Can you have an endpoint that is mono transmit and stereo receive in
>>>> this scenario?
>>>>
>>>> On Wednesday, May 27, 2015, Michael Jerris <mike at jerris.com> wrote:
>>>>
>>>>> Negotiate a call between a mono and stereo endpoint and it will do
>>>>> this.
>>>>>
>>>>> On Wednesday, May 27, 2015, Jon Lederman <jonlederman at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> We need to set up calls in FS where a mono signal coming into
>>>>>> Freeswitch is split into a stereo signal.  What is the easiest way to
>>>>>> accomplish this?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>>
>>>>>>
>>>>>> Sent from my iPhone
>>>>>>
>>>>>> _________________________________________________________________________
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>>>>>
>>>>
>>>> --
>>>> mandra
>>>> c:410.258.5281
>>>>
>>>>
>>>> _________________________________________________________________________
>>>> Professional FreeSWITCH Consulting Services:
>>>> consulting at freeswitch.org
>>>> http://www.freeswitchsolutions.com
>>>>
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>>>>
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>>
>>
>>
> _________________________________________________________________________
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>
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>
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-- 

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