[asterisk-users] wideband codec support
madhuri_patwardhan at yahoo.com
Wed Apr 11 09:57:55 MST 2007
Thanks for the prompt reply.
I had a look at asterisk source file
codec/codec_speex.c and it *seems* like 8 khz is hard
coded in it.
I am interested in wideband codec and as I understand
speex (16 khz and 32 khz) are the only open source
wide band codecs.
Thanks for the wiki link, I will certainly try it. Is
16 khz Speex possible with Asterisk? Has anybody tried
--- Steve Totaro <stevetotaro at hotmail.com> wrote:
> Peer 2 Peer SIP (or other protocol) is the future of
> Speex will work but you need to compile and install
> it separately from
> Asterisk (and before Asterisk) due to licensing
> issues with Digium. Not
> sure why you would want to use speex but here is a
> good link on the wiki
> with additional info.
> I have only used it for very low bandwidth
> applications and satellite
> connections. It increased latency but the audio was
> almost perfect
> where other codecs broke up so badly that a
> conversation was impossible.
> Madhuri Patwardhan wrote:
> > Yes. I understand that. I am considering a case
> > the call is IP end to end.
> > Madhuri
> > --- "Eric \"ManxPower\" Wieling" <eric at fnords.org>
> > wrote:
> >> Madhuri Patwardhan wrote:
> >>> Hi,
> >>> Does Asterisk support wideband VoIP? Is there
> >> support
> >>> for Speex 16 KHz?
> >> What devices support this?
> >> As I'm sure you know, if the call hits the PSTN
> >> will always be ulaw
> >> or alaw and so will not be wideband. Wideband
> >> codecs are only helpful
> >> if the call IP end to end.
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