The streamDeckAudio Deobfuscator (sdad) is a tool that coverts *.wav files to *.streamDeckAudio and vice versa. This is mainly just a very tiny project for me to get used to Rust. So if you know Rust and see something awful, please open an issue I'd love to lean more.
Just because you can convert *.streamDeckAudio files to *.wav files with this tool, does not mean that you are allowed to use the wave files. This tool is not related to Elgato.
The audio files *.streamDeckAudio are internally just RIFF WAVE (*.wav) files, but transformed with a single byte XOR with the value 0x5E.
This tool just takes a single argument (either a *.wav or a *.streamDeckAudio) and transforms it into the other type by XOR-ing the entire file.
Usage: sdad.exe <input-file>