[Sumover-tech] Vocoders of interest not in RAT Library

[Piers O'Hanlon]

On 29/08/2007, Melbourne Barton <mbarton at research.telcordia.com> wrote:
>
>  The selected codec I am interested in (e.g., G.729D) *is not *in RAT.
> I have the software code for this codec on my Windows machine.
> What can I do in this case?
>

You  would need to add the codec  to RAT codec library, including a suitable
RTP encapsulation (see RFC 3351). see the README files in the RAT directory:
https://frostie.cs.ucl.ac.uk/nets/mmedia/browser/rat/trunk/README.files

Piers

Melbourne
>
> Piers O'Hanlon wrote:
>
> Yes RAT can playback and/or record PCM/WAV audio from a file by selecting
> the file small floppy disk icon at the lower left of the main window pane.
> This will be packetised by RAT according to the selected codec in RAT.
>
> Piers
>
> On 28/08/2007, Melbourne Barton <mbarton at research.telcordia.com> wrote:
> >
> > Hi,
> >
> > I am testing a set of voice codecs that are not in the RAT toolkit.
> > The codec softwere are installed on my Windows machines (voice encoder
> > on one PC, and voice decoder on another PC).
> > Input to the encoder are speech files (in .wav or .raw format). The
> > digitized output of the encoder is stored in a file.
> >
> > Can I use RAT's  RTP/UDP/IP capabilities to transmit the file to the
> > remote Windows PC that has the voice decoder installed,
> > to recover the decoded speech.
> >
> > If RAT cannot be used, which other (preferably windows-based) tools are
> > out there to build, transmit and recover RTP streams?
> >
> > Thanks,
> >
> > Melbourne
> >
> > _______________________________________________
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> > Sumover-tech at cs.ucl.ac.uk
> > http://oakham.cs.ucl.ac.uk/mailman/listinfo/sumover-tech
> >
>
>
>
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