Metal Sonic AI voice generator & voice changer

About the Metal Sonic voice

Metal Sonic is the robotic duplicate of Sonic the Hedgehog, built by Dr. Eggman as a rival designed to match and surpass the original's speed. The character debuted in the video game Sonic the Hedgehog CD, where he races Sonic and serves as a recurring menace. Since then he has returned as a villain in many other Sonic games and related media, remaining one of the series' best-known antagonists.

As a machine, Metal Sonic is best imagined with a cold, mechanical delivery. Expect a flat, controlled tone with a metallic, synthetic edge, speech that sounds precise and emotionless, and a steady, deliberate pace with clipped phrasing. Short, menacing lines work especially well, and the result tends to feel like a determined robot issuing a challenge rather than a casual speaker.

To get good results on voicechange.io, you can record or upload your own speech and hear it transformed, type text to hear the voice speak it, or create a song cover. The pitch is matched to the voice automatically, so you can simply start. For the best effect with this voice, speak in a clear, even monotone, avoid big emotional swings, and pause briefly between short sentences. A quiet room and a steady microphone distance will also help keep the robotic tone clean.

Voice details

Tips for the best Metal Sonic result

This model is centred around 150 Hz. With auto pitch on, a typical deeper voice (around 120 Hz) isn't shifted, since it already fits, and a typical higher voice (around 210 Hz) is shifted about 6 semitones down. Gaps under 4 semitones are left alone, and shifts stop at one octave. If the result sounds strained, nudge the slider one or two steps back toward your own voice; for song covers, keep it at 0, +12 or −12 so the vocal stays in key. How pitch works.

• Record in a quiet room with no music in the background; noise is the main cause of robotic-sounding results.
• Perform the line the way Metal Sonic would say it. The model copies your timing and emotion, only the voice changes.
• For song covers, pick a track with one clear lead vocal and little reverb.

More recording tips →

This is a fan-made AI voice model. voicechange.io is not affiliated with or endorsed by Metal Sonic, the voice actors or the rights holders. Please label shared results as AI and don't use them to mislead anyone. Rights holders can request removal on the contact page.

Metal Sonic voice questions

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