[sldev] Voice = Proprietary

[Tim Shephard]

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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