Here is a basic VoiceAttack profile for X4 based on the default kep-mappings as of patch 1.20. I'm fairly new to making these so it's most definitely not perfect, but should be overall functional for most commands you'd want ingame.
It is currently not integrated with any Voice Packs, but might add additional versions with them in mind at some point if there's demand for it. Also, if you are familiar with VoiceAttack profiling and have any tips/advice on streamlining what I have here, please let me know!