Free Cyborg Voice Changer

A free half-human, half-machine voice with a buzz underneath.

Before and after

Free cyborg voice changer

Your browser will ask for microphone access when you click.

More versions

Variation: Robot buzz at 12%: the implant barely audible.
Variation: Robot buzz at 60% with a 10-bit crusher: mostly hardware.

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 human part and the machine part

Part	Setting	What you hear
Human	Pitch -3, Tone -1	A natural low voice with no radio filtering
Implant	Robot 60 Hz, 30% mix	A hum like mains electricity under each word
Circuitry	Flanger 0.15 times a second, 30% mix	A slight moving metal tint
Balance	Bass +2 dB below 180 Hz, treble -1 dB above 4 kHz	A touch warmer and softer than your own voice

Let the person show through

Talk normally, with feeling. The contrast between a human delivery and the hum is the whole effect.
Add one mechanical habit: an exact number, a clipped technical term, a pause before a name.
Hold a long vowel now and then. The 60 Hz flutter is easiest to hear on a sustained sound.
Keep your own volume steady; nothing in this voice evens it out for you.

A machine voice you can keep on all session

Because it stays easy to understand, this is the one robotic voice that lasts a whole evening: a cyberpunk tabletop character, a sci-fi VTuber persona, a long roleplay scene. For a character whose implant should barely show, use the second clip with the buzz at 12%. For one who is mostly hardware, the third raises the buzz to 60% and adds a 10-bit crusher at 40%. Moving between them over a story shows the character gaining or losing humanity.

The exact settings

Setting	Value
Noise gate	mutes the mic below -55 dB, between words
Pitch	-3 (lower)
Tone	-1 (sounds bigger)
Robot	60 Hz buzz, 30% mix
Flanger	wobbles 0.15 times a second, 30% mix
Bass	+2 dB below 180 Hz
Treble	-1 dB above 4 kHz