GMR voice

Sylvain Munaut 246tnt at gmail.com
Wed Jul 8 19:58:52 UTC 2020


Most likely it's encrypted which if you don't have the matching deciphering
key means it's garbage. Check the pcap capture of the control channel but
chances encryption was turned out.

On Wed, Jul 8, 2020 at 9:41 PM fe8769 <fe8769 at gmail.com> wrote:

> hello
>
> in /tmp/ I have some .dat files like :
>
> /tmp/gmr1_speech_928_1_309814.dat . I think it is voice extract from arfcn
> 928
>
> I tried
>
> ./gmr1_ambe_decode /tmp/gmr1_speech_928_1_309814.dat
>
> I have stout garbage
>
> I tried to review code in gmr1_ambe_decode.c to understand but I'm too bad
>
> is it the way it is working ?
>
> Thanks again
>
> --
>
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