Hi,
this was the initial idea how to save the rtp payload. In case of "both
direction" the amplitude of forward and reversed voice samples is simply
added together and divided by 2. Although the setting inside the .au
file header is to use stereo mode (channels==1) the actual information
is not saved seperately. Why? I think there was no need for this that
time, since this is quite seldom used options. But it can be changed.
Look inside rtp_analysis.c:
static gboolean copy_file(gchar *dest, ...)
...
...
/* both directions */
...
*pd = (unsigned char)linear2ulaw( (f_pd + r_pd)/2 );
Regards, Miha
On Tue, 2005-05-24 at 10:54, Ramamohan Yeggoni wrote:
> Hi All,
>
> Using ethereal, I am trying to save the conversation into single .au
> file.
> We are using g711 a law (8KHz) codec and captured packets using
> ethereal Version 0.10.10.
> Saving the rtp payload in forward/reverse directions separately to .au
> files is fine.
> When I opt for both directions, the conversation on both channels got
> overlapped.
> While playing back I can hear both channels simultaneously.
> Could you please let me know the reason for the same and how to
> correct this issue.
>
> Any help in this regard is highly appreciated.
>
> Thanks and Regards,
> Ram
>
>
>
>
>
>
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--
Miha Jemec <m.jemec@xxxxxxxxxxx>