[Freeswitch-dev] Stereo support?

[Anthony Minessale]

We have the plumbing for it but we did not currently attempt to support it
yet.
The codecs and file handles all support a number of channels.  Basically
all the places where we detect sample rate differences and engage
transcoding we would need to mux/demux stereo/mono.

For the conference, my idea was to make it so you can create many channel
conferences and either call in with stereo RTP on opus or some mono codec
into one specific channel like you could call 2 mono speakerphones into 2
separate channels of the conference on the same table or something.





On Thu, Dec 13, 2012 at 9:18 AM, Xijing Dai <dxj19831029 at gmail.com> wrote:

>
>
> On Thu, Dec 13, 2012 at 6:01 PM, Rick van Rein <rick at openfortress.nl>wrote:
>
>> Hey,
>>
>> > Have anyone try to implement stereo support in freeswitch to streaming
>> the
>> > music?
>>
>> It'd also be a great asset to conference calls if we could hear the people
>> "in the room" each talk from their position.  Add stereo microphones and
>> it
>> is even possible to "look at people" and direct speech more loudly their
>> way.
>>
>> This is more sensational than you can imagine :- I once ate in a
>> restaurant
>> where the situation of being blind was simulated through absolute
>> darkness.
>> I was struck by how instinctively the mind registers if someone is
>> looking at
>> you while speaking, almost as if it has once been useful for our defense
>> or so.
>>
>> I think this sensation could make an incredible impact on the concept of a
>> conference call, and make it come *much* closer to a live conversation.
>>
>
> Great idea. I did have a look at conference algorithm. It's first added up
> all mic
> voice wave and than minus listener's voice from it. By this mean, we could
> also
> increase volume of voice of whom looked at listener and added up before
> sent the wav to listeners.
>
> However, the difficult part is how to figure out if someone is looked at
> someone?
>
>
>
>
> > I tried, but only 1 channel is hardcoded inside freeswitch code
> everywhere,
> > i can't make it work properly, just wonder if any1 tried before?
>
> Can't answer that, just motivate it as a more generally useful idea.
>>
>>
>> Ciao,
>>  -Rick
>>
>> _________________________________________________________________________
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>>
>> 
>> 
>>
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>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
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-- 
Anthony Minessale II

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