Drop your recording by approximately 3 to 5 semitones to give it a deeper, more menacing feel.

Add a large Hall Reverb, but reduce the "Dry" signal and increase the "Wet" signal slightly. This makes the voice sound like it is echoing in a large, empty digital space.

Lower the volume of the demonic track so it sits underneath the main voice, acting as a menacing undertone.

Take one word – e.g., "" – and stretch it to 4x its length. Instead of pitch preservation, allow the pitch to drop naturally ( Effect > Change Speed ). You will get a descending, digital smearing effect reminiscent of a crashing emulator.

Making this voice requires a combination of vocal acting techniques and sound manipulation software (Digital Audio Workstations or voice changers). 1. The Anatomy of the Fatal Error Voice

To create the voice of Fatal Error Sonic , the most authentic method is to use the text-to-speech engine, which is the original source for the character's robotic, glitchy sound. 1. Using the Original "BetterSAM" AI Voice