Hi, Want to do some experiments with the G.723 codecs - where can I download the 723 source code for Asterisk? I know there are some ongoing discussion regarding patents and license fees for the g.723 but I have some hardware on which I only have the 723 and need to test it privately. Thanks! Dan _________________________________________________________________ Use MSN Messenger to send music and pics to your friends http://www.msn.co.uk/messenger
On Friday 16 January 2004 13:30, Dan Tusa wrote:> Want to do some experiments with the G.723 codecs - where can I > download the 723 source code for Asterisk? > > I know there are some ongoing discussion regarding patents and > license fees for the g.723 but I have some hardware on which I only > have the 723 and need to test it privately.Careful. There's a difference between G.723.1 and G.723. The former is patent-encumbered and has no source for Asterisk, while the latter is not patent-encumbered and is known within Asterisk as ADPCM. -Tilghman
You can purchase the G.723.1 reference code from the ITU, then you'll need to make it work with Asterisk On Fri, 2004-01-16 at 13:30, Dan Tusa wrote:> Hi, > > Want to do some experiments with the G.723 codecs - where can I download the > 723 source code for Asterisk? > > I know there are some ongoing discussion regarding patents and license fees > for the g.723 but I have some hardware on which I only have the 723 and need > to test it privately. > > Thanks! > Dan > > _________________________________________________________________ > Use MSN Messenger to send music and pics to your friends > http://www.msn.co.uk/messenger > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users-- Go to http://www.digium.com/index.php?menu=documentation and look at the "Unofficial Links" section. This section has links to a wide variety of 3rd party Asterisk related pages. My page is the "Asterisk Resource Pages". BTEL Consulting 504-899-1387 or 850-484-4545 or 877-677-9643
I solve it for h323 in follow way:
1. Exclude all codecs except g723.1 from h323.conf:
disallow=ULAW
allow=g723.1
2. Add format_g723 module (http://www.agk.nnov.ru/format_g723.c.gz)
into project
3. convert all wav and gsm sound into g723 format (use lbccodec from
g723_1 demo package, don't ask me where you can download it)
4. set maxsilence=0 in voicemail.conf to suppress conversion into pcm
format for silence detection.
And it works fine for me.
But where are some bugs in h323 module:
* not supported g7231 without sound detection (simple to fix).
* sometime data transfer (rtp traffic) begins before negotiation
complete and first packet is going in g711 codec and channel going
down (not yet reviewed).
if will any question regards format_g723 module send mail to:
f723 >< agk.nnov.ru
Friday, January 16, 2004, 10:30:41 PM, Dan Tusa wrote:
DT> Hi,
DT> Want to do some experiments with the G.723 codecs - where can I download
the
DT> 723 source code for Asterisk?
DT> I know there are some ongoing discussion regarding patents and license
fees
DT> for the g.723 but I have some hardware on which I only have the 723 and
need
DT> to test it privately.
DT> Thanks!
DT> Dan
DT> _________________________________________________________________
DT> Use MSN Messenger to send music and pics to your friends
DT> http://www.msn.co.uk/messenger
DT> _______________________________________________
DT> Asterisk-Users mailing list
DT> Asterisk-Users@lists.digium.com
DT> http://lists.digium.com/mailman/listinfo/asterisk-users
DT> To UNSUBSCRIBE or update options visit:
DT> http://lists.digium.com/mailman/listinfo/asterisk-users
--
Andrei Koulik.
System administrator, Sandy Info Ltd. (ISP), Nizhny Novgorod, Russia
Had a look at your code and is looking good - need to add it to * Looked for a conversion tool as well for WAV/GSM ----> G.723.1. (could not find lbccodec) Does anybody have a suggestions where to find conversion tools Cheers Dan Andrei Koulik wrote:>I solve it for h323 in follow way: >1. Exclude all codecs except g723.1 from h323.conf: > > disallow=ULAW > allow=g723.1 > >2. Add format_g723 module (http://www.agk.nnov.ru/format_g723.c.gz) > into project > >3. convert all wav and gsm sound into g723 format (use lbccodec from > g723_1 demo package, don't ask me where you can download it) > >4. set maxsilence=0 in voicemail.conf to suppress conversion into pcm > format for silence detection. > >And it works fine for me. >But where are some bugs in h323 module: >* not supported g7231 without sound detection (simple to fix). >* sometime data transfer (rtp traffic) begins before negotiation > complete and first packet is going in g711 codec and channel going > down (not yet reviewed). > >if will any question regards format_g723 module send mail to: >f723 >< agk.nnov.ru > > > >Friday, January 16, 2004, 10:30:41 PM, Dan Tusa wrote: > >DT> Hi, > >DT> Want to do some experiments with the G.723 codecs - where can I >download the >DT> 723 source code for Asterisk? > >DT> I know there are some ongoing discussion regarding patents and license >fees >DT> for the g.723 but I have some hardware on which I only have the 723 and >need >DT> to test it privately. > >DT> Thanks! >DT> Dan_________________________________________________________________ Stay in touch with absent friends - get MSN Messenger http://www.msn.co.uk/messenger