[amsat-bb] Audio file to .kss file - part 2

Scott scott23192 at gmail.com
Wed Jul 18 04:22:34 UTC 2018


I work some with telemetry decoding in both linux & Windows, but have never
produced .KSS files in linux.

If you have Wine installed to run the DK3WN decoder anyway, then the
easiest path might be to play your audio file in Windows, feed the output
to the appropriate UZ7HO software modem, and use Mike's "AGW Online Kiss"
program which is at:

http://www.dk3wn.info/files/agw_online_kiss.zip

... you'll be left with a .KSS file which of course is what you're looking
for to use in the decoder.

Not a "linux" solution, but the DK3WN decoders are Windows apps and I find
them easiest to use with other Windows software.  In contrast, decoders
that run in GNU Radio on linux tend to be more compatible with output
formats that we get from various linux programs.

-Scott,  K4KDR

==========================


On Tue, Jul 17, 2018 at 8:41 PM, Hans BX2ABT <hans.bx2abt at msa.hinet.net>
wrote:

> I got one step further, but haven't succeeded yet. I have some recorded
> telemetry from XW2D and the decoded program from DK3WN up and running on
> Linux using Wine. The telemetry program needs a .kss file to give some
> useful data.
>
> This is how far I got:
>
> 1) run a PulseAudio null sink with this command: pactl
> load-module-null-sink sink-name=virtual-cable
>
> 2) play the audio with Audacity
>
> 3) run Dire Wolf
>
> 4) use pavucontrol to set the output (Playback tab) for Audicity and the
> input (Recording tab) for Dire Wolf to the null sink
>
> 5) Dire Wolf will now happily take the audio from Audacity, which you can
> see by checking the VU meter in pavucontrol
>
> That's it.
>
> Dire Wolf has the -l command line option to set a directory for log files,
> but no option to set the file name or any other hint on how to save data as
> a file. I know it is mainly used as a pipe to decoding programs, but what
> is the option to save to file? It is not always feasible to decode from a
> live signal, so what I try to achieve is to decode from recorded material.
> Any hints appreciated.
>
> 73 de Hans
>
> BX2ABT


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