Metal Sonic Voice Changer: Free Online, No Sign Up

More versions

Variation: Robot buzz at 200 Hz: thinner and more electronic.
Variation: With distortion 0.5: the machine pushed past its limit.

Use it in calls and on recordings

Try it here
Press Start mic above and talk. You hear this voice with the exact settings on this page, and every slider can be moved.
Use it live
Press Use this voice in calls, then pick Facecam Virtual Mic as the microphone in Discord, Google Meet, Zoom or any other call that runs in Chrome.
Put it on a recording
Open Online Voice Changer, record or upload a file, choose the same settings and download the result.

More about this voice

The parts of a metal voice

Part	Setting	What you hear
Engine	Robot 90 Hz buzz, 60% mix	More buzz than voice; the note of your speech is mostly replaced
Metal	Flanger 0.15 times a second, 45% mix	A slow hollow sweep, like talking into a pipe
Circuit	Bit crusher 8-bit at 12 kHz, 50% mix	A hard digital surface
Speed	Pitch +2	Slightly higher and lighter than you
Chassis	Bass cut below 200 Hz, treble cut above 6 kHz	No warmth and no air

Talk like a machine with one objective

Flatten your melody completely. The buzz stamps one note on everything, and expressive speech only blurs against it.
Over-pronounce consonants and separate the words slightly. At 60% robot mix, consonants are what people understand you by.
Make statements short and factual: targets, results, comparisons. He's a rival who measures himself against the original.
Say one line, then stop. A cold machine that talks a lot stops being cold.

Metal Sonic, robot or Sonic.exe?

The plain robot voice is the friendlier neighbour, easier on the ear and closer to a helpful machine. Metal Sonic runs the buzz at 60% and adds a crusher and a flanger, so it is colder and more metallic. Sonic.exe isn't a robot at all; it is a low demon voice with echo. Two variations sit beside the main clip: the buzz moved to 200 Hz, thinner and more electronic, good for a smaller or faster machine; and distortion 0.5 at 60%, the machine pushed past its limit, for a boss phase.

The exact settings

Setting	Value
Noise gate	mutes the mic below -50 dB, between words
Pitch	+2 (higher)
Robot	90 Hz buzz, 60% mix
Bit crusher	8-bit at 12 kHz, 50% mix
Flanger	wobbles 0.15 times a second, 45% mix
Bass cut	below 200 Hz
Treble cut	above 6 kHz
Midrange	+3 dB around 1.2 kHz