[Freeswitch-users] g729 and AMR codec requirements

[Daniel Ivanov]

But has anyone actually succeded in obtaining AMR. I am not too crazy about
AMR, because improvement over g.729 is very slight. Undernote : can you
compile mod_amr for tanscoding against the lib if you don't care about
licensing(test/educational purposes)?
On Mar 19, 2013 9:31 AM, "Steven Ayre" <steveayre at gmail.com> wrote:

> 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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>
>
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> http://www.freeswitchsolutions.com
>
> 
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