[Asterisk-Users] Asterisk Codecs [G.729]
asterisk-users at betasphere.com
Tue Mar 9 15:54:48 MST 2004
It's full-duplex for both inbound & outbound
Total rates: 166.8 kbits/sec
Incoming rates: 83.6 kbits/sec
Outgoing rates: 83.2 kbits/sec
----- Original Message -----
From: "Andrew Gillham" <gillham at vaultron.com>
To: <asterisk-users at lists.digium.com>
Sent: Tuesday, March 09, 2004 2:45 PM
Subject: Re: [Asterisk-Users] Asterisk Codecs [G.729]
> Andrew Gillham wrote:
> > <Unavailable ID> wrote:
> >> Hello all,
> >> I'm looking for advice for codec that works best for asterisk.
> >> Anyone has real testing with all codecs, specially with G.729. I
> >> have tested with single call on few codecs that come with asterisk by
> >> using IPTraf and the rate as of below:
> >> ulaw 64 Kbps, sample-based Also known as alaw/ulaw 166kbits/sec
> >> alaw 64 Kbps, sample-based Also known as alaw/ulaw 167kbits/sec
> >> gsm 13 Kbps (full rate), 20ms frame size 66kbits/sec
> >> speex 2.15 to 44.2 Kbps n/a
> >> iLBC 15Kbps,20ms frame size: 13.3 Kbps, 30ms frame size 57.6kbits/sec
> >> G.729 8 Kbps, 10ms frame size license
> >> Have anyone test it with G.729? Please let me know.
> >> Thanks.
> > Are some of these numbers for the full-duplex traffic?
> Ok, my question doesn't even seem that clear to me. :-)
> What I mean, is that the G.711 numbers for example look like both
> directions *combined* so the actual rate would be more like 83Kbit/s.
> (much like listed on the wiki page)
> So for G.711 a/ulaw, gsm, iLBC etc I was wondering if that is a single
> direction, or the combination of both directions?
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