feature request: command line version that outputs decode about ggmorse

[ggerganov]

Hi, thanks for the suggestion!
I just added the example ggmorse-from-file that decodes Morse Code from an uncompressed WAV file:

https://github.com/ggerganov/ggmorse/tree/master/examples/ggmorse-from-file

[grkblood13]

To test I used your ggmorse-to-file executable and made the HELLO WORLD example and then overlaid various noise levels and lengths to simulate a real world scenario, which I uploaded at https://github.com/grkblood13/sample_files/tree/main/ggmorse. The following are the test types and their results.

Test 1: moderate noise with tightly trimmed morse
output: "HELLO WORLD"

Test 2: moderate noise with loosely trimmed morse
output: "? ? HELLO WORLD GEHE"

Test 3: heavy noise with tightly trimmed morse
output: "K ?PR&D"

Test 4: heavy noise with loosely trimmed morse
output: "EE HEEATS ETA NAT ? 5E?"

Overall it works pretty well, but noise filtering may be something you want to look at as the weaker the morse gets, although still clear to the human ear, the less usable the tool becomes.

Two more things:

You may want to add the following on the main readme as I had to do the same to get it to build. #4 (comment)

It would be nice if there was a way to build only ggmorse-to-file and ggmorse-from-file so you don't have to worry about unneeded dependencies if you're not going to use the GUI version.

[ggerganov]

Thanks for the tests!

You may want to add the following on the main readme as I had to do the same to get it to build. #4 (comment)

If you use the --recursive option during cloning as specified in the README, you don't need that command.

It would be nice if there was a way to build only ggmorse-to-file and ggmorse-from-file so you don't have to worry about unneeded dependencies if you're not going to use the GUI version.

This is already supported. Use:

cmake -DGGMORSE_SUPPORT_SDL2=OFF ../

I'll update the README to make this more clear.

[grkblood13]

Much appreciated. I'll give it a go next week!

[timseed]

Your code works well - I have used this to post-process CW Data, however ... as there is a very large discrepancy between QRO stations and QRP stations - some form of AGC would be very nice to have.