Forums

Regarding AMR WB+

Started by Ramana Reddy Polaka September 28, 2005
*Hi,*

* *

*Is anybody working on Extended AMR WB( AMR WB+ ) ? Please help me in the
following doubts.*

* *

1. *is it possible to integrate optimized AMR WB in AMR WB+? If not,
are they separate specifications?*
2. *are IF1 and If2 formats required to test AMR WB+? Right now I am
having the test sreams which are given by 3gpp.***

* *

*Any kind of help is appreciated.*

* *

*Thanks 'n' Regards*

*Ramana*



HI Ramana,
Usually 3 GPP give only conformance suites.So it is
better to generate streams in IF1 and IF2 format using
a reference encoder and decode using a reference
decoder and compare it with your results from your
implementation or ported code.
AMR WB+ has only a feww additions so you can
practically apply the optimization for all the basic
functions on the AMRWB+ same as AMRWB.
regards
Bob

--- Ramana Reddy Polaka <ramana.polaka@rama...>
wrote:

> *Hi,*
>
> * *
>
> *Is anybody working on Extended AMR WB( AMR WB+ ) ?
> Please help me in the
> following doubts.*
>
> * *
>
> 1. *is it possible to integrate optimized AMR WB
> in AMR WB+? If not,
> are they separate specifications?*
> 2. *are IF1 and If2 formats required to test AMR
> WB+? Right now I am
> having the test sreams which are given by
> 3gpp.***
>
> * *
>
> *Any kind of help is appreciated.*
>
> * *
>
> *Thanks 'n' Regards*
>
> *Ramana* >
>

__________________________________



Hi Ramana,

I posted a reply but it got lost somewhere, so I just do it again.

1. The AMR-WB in AMR-WB+ is similar to the AMR-WB. It has an extra
codebook/bitrate.
Most of the functions can be replace directly, you just need to do a
diff of the standars WB and WB in WB+ to highlight the differences.

2. The AMR-WB+ has 2 formats : packet format:RAW/RTP or file format:
3GP. IF1 and IF2 related to AMR-WB in wireless environement.
The 3GPP document 26-274 contains all the details for testing and
conformance. Regards,

--- In speechcoding@spee..., Ramana Reddy Polaka
<ramana.polaka@g...> wrote:
>
> *Hi,*
>
> * *
>
> *Is anybody working on Extended AMR WB( AMR WB+ ) ? Please help me
in the
> following doubts.*
>
> * *
>
> 1. *is it possible to integrate optimized AMR WB in AMR WB+? If
not,
> are they separate specifications?*
> 2. *are IF1 and If2 formats required to test AMR WB+? Right now
I am
> having the test sreams which are given by 3gpp.***
>
> * *
>
> *Any kind of help is appreciated.*
>
> * *
>
> *Thanks 'n' Regards*
>
> *Ramana*
>