Re: [SoX-users] hi guys trying to add amr-wb to my sox setup on Ubuntu

[Jan S. <ha...@st...>]

> > I don't think there are any AMR packages for Ubuntu (at least not ones that currently work with SoX), due to licensing restrictions.
> >
> > So the way I do it, as Jan suggests, is to compile SoX from source, after first having compiled AMR from source.
> >
> Hi
> I too am interested in compiling SoX with amr_wb support.
> 
> libvo-amrwbenc is compiled and installed on my system for use with FFmpeg.
> >From here ---> http://sourceforge.net/projects/opencore-amr/
> Is this suitable for SoX?

This is the AMR implementation I am using.

> Using Ubuntu-11.04 and SoX from git.
> When I run command ./configure
> It shows:-
> OPTIONAL FILE FORMATS
> amrnb......................yes
>  dlopen amrnb..............no
> amrwb......................yes
>  dlopen amrwb..............no

This means your ./configure has found the installed AMR.

> 
> When I use:-
> sox -d output.amr-nb
> it is OK.
> 
> But when I use:-
> sox -d output.amr-wb
> it gives:-
> sox WARN formats: amr-wb can't encode at 48000Hz; using 16000Hz
> sox WARN formats: amr-wb can't encode stereo; setting channels to 1
> sox FAIL formats: can't open output file `output.amr-wb': SoX was compiled without AMR-WB encoding support.

I don't think
http://sourceforge.net/projects/opencore-amr/files/opencore-amr/
can do WB encoding; for that you IMHO need
http://sourceforge.net/projects/opencore-amr/files/vo-amrwbenc/

Specifically, I think you have the libopencore-amr[nw]b.so libs
but do not have the libvo-amrwbenc.so library.

Out of curiosity, why do you need to encode into AMR?