[sldev] Voice = Proprietary

[Sverre Svenningsen]

Ideally if the voice streams are low bandwith enough, maybe you could  
send them separately to the client and let the client handle the 3d  
spatial stuff.
It would be more accurate and responsive than how vivox does it (at  
the cost of higher bandwith usage if many people start talking at the  
same time), and you could probably make it support true surround  
sound systems.

-Sverre

On Mar 12, 2007, at 5:16 AM, Tim Shephard wrote:

> Apparently TeamSpeak uses it.  Hmmm, pretty nice.
>
> http://www.speex.org/software/
>
> Still, perhaps the quality of Speex might not support the 3D sound you
> get with the current codec.
>
> On 3/11/07, Tim Shephard <tshephard at gmail.com> wrote:
>> Speex looks cool.
>>
>>  Is there an example of it handling group chat?
>>
>> I couldn't find any attenuating patents (except by IBM), so we might
>> be able to go ahead and do that .. though I wonder how easy that  
>> would
>> be.
>>
>> Anyways.. not sure what the complaint is here.  If we want an open
>> source version, I'm sure we can go ahead and do one.   Let's make the
>> serverside bit BSD though, and package it with opensim..
>>
>> On 3/11/07, Callum Lerwick <seg at haxxed.com> wrote:
>> > On Sat, 2007-03-10 at 22:18 -0800, Joe Miller wrote:
>> > > I'll be happy to post more about this as we get closer to our  
>> release,
>> > > but the codecs in use for voice are standard.  We're using G. 
>> 711 and
>> > > G.722.1 (annex C) both of which are described in relevant ITU
>> > > specifications.  We use RTP as media transport - the standard  
>> payload
>> > > type is used for G.711 and a custom tag for G.722.1(C).  The  
>> control
>> > > protocol is SIP (RFC 3261).
>> >
>> > Hah hah hah. You're shitting me. G.711 is essentially a Sun .au  
>> file.
>> > (Remember those?) Ah, the best technology 1972 can provide. 64kbit?
>> > Speex doesn't even go up that high!
>> >
>> > And G.722.1 is patented and has licensing terms that are  
>> unusable by
>> > open source projects as spot determined elsewhere in the thread.  
>> Its
>> > capabilities seem to be similar to Speex.
>> >
>> > This is the best closed source has to offer? What a farce.
>> >
>> > Speex is good enough for Xbox Live, Half Life and the United  
>> States Army
>> > Land Warrior system. Is Linden Lab really too good for Speex?
>> >
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