[Freeswitch-users] g729 and AMR codec requirements

[Steven Ayre]

And G729 most definitely is not a HD codec either. :o)

Abdul, have you seen this list of supported codecs?
http://wiki.freeswitch.org/wiki/Codecs#Transcodable_codecs

G.722, AMR-WB, SILK, CELT, iSAC, Broadvoice are supported HD codecs.

FreeSWITCH doesn't have any transcoding implementations of AMR-WB. The
others do.

For AMR(-WB) you'd need either a 3rd-party software implementation or the
Sangoma transcoding hardware. FreeSWITCH's modules can be compiled against
a AMR library implementation if you can find that library and obtain the
required licenses. If you're worried about load, the Sangoma hardware takes
most of the workload off of the CPU onto the chipset. Either way as already
noted you're going to have to obtain the AMR licenses yourself.

-Steve



On 18 March 2013 23:57, Steve Underwood <steveu at coppice.org> wrote:

> Hi,
>
> AMR is not an HD codec. There is a wideband version of AMR, called
> AMR-WB, but when people just says AMR they are talking about the narrow
> band codec.
>
> Steve
>
> On 03/19/2013 05:29 AM, Abdul Basit wrote:
> > Thank you for responses.
> >
> > What other HD codes are supported? actually blackberry has AMR support
> > only. Thats why AMR should be in the shelf.
> > Also is there any option to buy bulk license for g729 rather than
> > managing 2500 licenses.
> >
> > Any idea on hardware, CPU and RAM required to deal with such conf. load?
> >
> >
> > --
> > regards,
> >
> > abdul basit | p: +92 32 1416 4196 | o: +92 30 0841 1445
> >
> >
> > On Mon, Mar 18, 2013 at 11:21 PM, Ken Rice <krice at freeswitch.org
> > <mailto:krice at freeswitch.org>> wrote:
> >
> >     I can confirm that, Sangoma's cards do not include AMR licensing.
> >     This is
> >     one of their * notes right on the marketing materials.
> >
> >     Seems the AMR group will only licensed either complete products or
> >     the end
> >     user.
> >
> >
> >
> >
> >     On 3/18/13 10:27 AM, "Steve Underwood" <steveu at coppice.org
> >     <mailto:steveu at coppice.org>> wrote:
> >
> >     > Hi,
> >     >
> >     > Moises can confirm this, but I think even the Sangoma hardware
> >     > transcoder cards require separate patent licencing for AMR.
> >     >
> >     > Steve
> >     >
> >     > On 03/19/2013 12:30 AM, Ken Rice wrote:
> >     >> Re: [Freeswitch-users] g729 and AMR codec requirements One per
> >     >> participant. So if you have 500 dynamic rooms w/ 5 participants
> >     each
> >     >> you would need 2500 licenses.
> >     >>
> >     >> Keeping in mind that FreeSWITCH does not have a license for AMR
> you
> >     >> will need to get that direct from the AMR patent licensing people.
> >     >>
> >     >>
> >     >> On 3/18/13 7:57 AM, "Abdul Basit" <basit.engg at gmail.com
> >     <mailto:basit.engg at gmail.com>> wrote:
> >     >>
> >     >>     Hi,
> >     >>
> >     >>     I am planing to setup FS based conferencing solutions with 500
> >     >>     dynamic conference rooms with 3 ~ 5 participants in each room.
> >     >>
> >     >>     Need suggestions on hardware dimensioning and codec
> >     requirements.
> >     >>     I am thinking on using AMR and G729 codecs.
> >     >>
> >     >>     How many codec licenses are required?
> >     >>
> >     >>     --
> >     >>     regards,
> >     >>
> >     >>     abdul basit | p: +92 32 1416 4196
> >     <tel:%2B92%2032%201416%204196> | o: +92 30 0841 1445
> >     <tel:%2B92%2030%200841%201445>
> >     >>
> >
>
>
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