This is probably the only tool available online that can:

Take a folder full of soundfonts and convert them all from .sf2 to .sfark format.

and

Take a folder full of soundfonts and convert them all from .sfpack to .sf2 format.

To convert soundfonts from .sfark to .sf2 format, use sfarkxtc.

More information

The tool works by driving the ui of sfark.exe and sfpack.exe, sending window events as if you were typing keyboard shortcuts into the programs. It reads text out of the ui, so that it can extract attached text files and also determine when processing is complete.

If you provide a path to sfarkxtc.exe, the tool works even more safely -- it confirms for each file that the open-source sfarkxtc algorithm can decompress the sfark with 100% fidelity.

Supports attached information and licenses for both sfark and sfpack. If you provide the --continue_on_err flag, the script will keep continuing even if a file can't be processed succesfully. To gracefully stop the script while it is running, create a file named nocpy_request_stop in the same directory as the script and wait about 30 seconds. Because driving a UI is never an exact science, I recommend keeping a separate backup copy of your input until you confirm that the conversion succeeded.

Installation

• Get a copy of sfark.exe
• Modify automated_sfark_compress.py to point to the path to sfark.exe
• Get a copy of sfpack.exe
• Modify automated_sfpack_decompress.py to point to the path to sfpack.exe
• (Optional) Get a copy of sfarkxtc.exe from here
• (Optional) Modify automated_sfark_compress.py to point to the path to sfarkxtc.exe
• Install Python3
• Run pip install pywinauto

To batch compress all sf2 soundfonts in a directory, run python src/automated_sfark_compress.py /directory/with/soundfonts or python src/automated_sfark_compress.py --recurse /directory/with/soundfonts

To batch decompress all sfpack files in a directory, run python src/automated_sfpack_decompress.py /directory/with/sfpacks or python src/automated_sfpack_decompress.py --recurse /directory/with/sfpacks

(The first time you run automated_sfark_compress.py, it will suggest some changes to sfark settings, it's recommended that you follow the advice given).

Tests

The following commands will start tests.

python automated_sfark_compress.py --test 1

python automated_sfpack_decompress.py --test 1