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View Full Version : How to enable AMR-WB codec on devices



DFTC
2010-06-18, 01:31 AM
Hi all,

i'm looking for a way to enable the AMR-WB (G722.2) codec on any WCDMA devices.

Thanks in advance for your responses

BR

Dan

s52d
2010-06-18, 08:24 AM
Hi!

IMHO, you can not. Terminals either support it, or not.
Even worse: some claims to support, but do it only on application layer,
not for normal speech.

I guess the only way to do it is to get firmware upgrade for particular phone.
Or wait few years for WB-AMR to become usable.
Or just ignore it, it will come too late to be used. Future is LTE+IMS some powerpoints claim.

DFTC
2010-06-18, 06:26 PM
Thanks s52d, i'm agree with you.
I think that a lot of device support this codec, but the feature is disabled.
According to this news ([Only registered and activated users can see links]), Orange UK will use this feature soon, and i'm pretty sure
that we can already use it with compatible devices.

s52d
2010-06-18, 11:54 PM
Yes, some new terminal support WB-AMR.

Orange already trialed it in Kishinev/Moldova I heard,
and It has been in use during Barcelona show.

On the other hand, I heard rumors about terminals not supporting it in BSS.
So, user who manage to have other party with WB-AMR phone will notice
performance degradation after 3g to 2g handover.

If it does not work on 2g and 3g, then it might get quite negative responses: people
might remember performance degradation, not initial HD-voice..

So my status is: call me when we have 15% of terminals in the network, and when
you can demonstrate 3g/2g handover in WB-AMR.

DFTC
2010-06-19, 12:17 AM
I think that Network Operators will have two kind of terminals : Standard ones and "HD ready" ones.
Firstly, because "HD voice" depend on the codec but also on the microphone/speaker quality.
Secondly, you're right : some terminals will have issues on some radio equipment suppliers, or on the BSS for instance.
(But the HD availability could also be limited to the 3G Network coverage.)

onlygod
2010-06-19, 04:55 AM
I remember seeing AMR WB trial about 3 years ago, about 2 years ago my operator introduced AMR WB and had a whole promotion about how clear it sounds etc.
So, it's been around for a while, but how can I see which phones support it? Anyone have a list?