[Speex-dev] Starting point

Jean-Marc Valin
Mon, 18 Apr 2005 22:00:48 -0000

Hi,

I suggest you start with the Speex manual and the sampleenc/sampledec
applications in the Appendix. FYI, the Speex frame size is 20 ms at 8
kHz and UDP is much better than TCP for VoIP for latency reasons.

	Jean-Marc

Le lundi 18 avril 2005 ? 23:36 -0400, Julian Ford a ?crit
:
> Hello there,
> I know newbie messages are often a pain, but everyone has to start
> somewhere...
>
> I am new to the world of VoIP, and want to get started with a
"simple"
> point-to-point
> application...no bells and whistles, just two users connected and able to
> talk.
> I stumbled on the Speex CODEC, and it looks as though it fits my
needs...now
> I
> just have to figure out how to use it.
>
> I don't want to burden you guys down with a million questions, so can
anyone
> recommend
> a good starting resource?  VoIP for dummies (LOL)?  I need to learn about
> frame rates
> (do we cut the speech up into 30ms chunks, and send these chunks along?),
> and packeting--
> I've read that TCP/IP is insufficient (too bulky), so datagrams are
better
> (UDP).  I have built
> applications that exchange data using TCP/IP, but have no experience with
> UDP or idea how
> to use it (like I said a real newbie here).  The DLLs that come with Speex
> lead me to believe
> that I can call into the library, passing the appropriate information.  I
> develop in Smalltalk,
> so this will be no problem.  I just need help with the first few steps....
>
> Thank you for your attention.  Any help would be greatly appreciated....
>
> Regards,
> Julian Ford
>
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--
Jean-Marc Valin <Jean-Marc.Valin@USherbrooke.ca>
Universit? de Sherbrooke