[FFmpeg-devel] Fwd: Help with codecs

[Fernandon Bautista]

Thanks for the responses. As you advised for me to do, along with this
email I have attached a couple of files more.

Thanks for your help.

On Tue, May 12, 2015 at 9:17 PM, Michael Niedermayer <michaelni at gmx.at>
wrote:

> On Tue, May 12, 2015 at 05:16:51PM +0200, Fernandon Bautista wrote:
> > Dear all,
> >
> > we have some audio files that we need to convert to WAVE audio, Microsoft
> > PCM, 16 bit, mono 8000 Hz format. They are encoded in a proprietary
> > software codec that it only runs on Windows. We need to process the audio
> > decoding in Linux servers and thus we need to find an alternative.
> >
> > Base on the provider, we expect the audios to be one of those codecs (
> >
> http://www.shouldiremoveit.com/Verint-Multimedia-Support-Package-100067-program.aspx
> > ):
> >
> > g7231
> > g726
> > g729
> >
> > We have tried all of them:
> >
> > ffmpeg -acodec g723_1  -i test.wav -acodec pcm_s16le -map 0 -f wav
> > test_out.wav
> > ffmpeg -acodec g726  -i test.wav -acodec pcm_s16le -map 0 -f wav
> > test_out.wav
> > ffmpeg -acodec g729  -i test.wav -acodec pcm_s16le -map 0 -f wav
> > test_out.wav
> >
> > without exit.
> >
> > Along with these email I have attached an audio file(which does not
> contain
> > any conversation because of privacy issues). We would really appreciate
> if
> > you could suggest any advice or direction.
>
> please provide a longer audio sample both the original with unknown
> compression and the decompressed by windows pcm
> Ideal may be a sine sweep and some diverse music
>
> also please dont attach large files but upload them somewhere and
> provide a link (see our bug reporting instructions if you dont know
> where to upload)
>
> Thanks
>
> [...]
>
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Those who are too smart to engage in politics are punished by being
> governed by those who are dumber. -- Plato
>
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