Reverse engineering of audio effects can be done completely independently of the hardware that generates it.
What if the audio effect is:
Take an audio stream, apply STT, interpret the result as an algorithm, run the algorithm, take its output, apply TTS, then send that audio stream to the output.
What if the audio effect is:
Take an audio stream, apply STT, interpret the result as an algorithm, run the algorithm, take its output, apply TTS, then send that audio stream to the output.