Free Vocoder Voice Changer

A free vocoder sound: your voice riding on a buzzing carrier.

Before and after

Free vocoder voice changer

Your browser will ask for microphone access when you click.

More versions

Variation: Carrier at 70 Hz: a darker, growlier vocoder.
Variation: Robot mix at 50%: half vocoder, half your own voice.

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

Carrier, mix and sweep

Part	Setting	What you hear
Carrier	Robot 110 Hz	A steady low note that takes over from your own melody
Mix	85%	Mostly carrier, with a little of your voice left for clarity
Sweep	Flanger 0.1 times a second, 60% mix	The slow whoosh of a synth pad
Band	Bass cut below 150 Hz, treble cut above 7 kHz, midrange +3 dB around 1.2 kHz	Rumble and fizz removed, vowels forward

Speak so the carrier can carry you

Exaggerate your mouth shapes. The carrier provides the note; your vowels and consonants provide the words.
Speak or sing in an even monotone. Your own melody clashes with the fixed 110 Hz tone.
Hold vowels longer than in normal speech so the flanger has something to sweep through.
Hit t, k, s and p hard; listeners rely on them to make out the lyrics.

Three carriers to choose from

Clip	Change	Use it for
As the page loads	none	The bright robot-singer sound, for hooks and intros
Darker	Carrier at 70 Hz	A growlier, heavier vocoder that sits under low music
Half and half	Robot mix at 50%	Half vocoder, half your own voice, when the words matter most

The exact settings

Setting	Value
Noise gate	mutes the mic below -50 dB, between words
Robot	110 Hz buzz, 85% mix
Flanger	wobbles 0.1 times a second, 60% mix
Bass cut	below 150 Hz
Treble cut	above 7 kHz
Midrange	+3 dB around 1.2 kHz

Free vocoder voice changer FAQ

Is this a true vocoder?

It makes the vocoder sound with a single carrier tone, not a bank of filters driven by a keyboard. You can't play chords with it; you set the carrier's note with the Robot slider.

Can I sing through it?

Yes, and it follows your rhythm, but the carrier stays on its own note. Sing on or near one pitch for the cleanest result.

Can I use it in my music software?

Not live, because desktop apps can't see the Facecam mic. Process the vocal in the Online Voice Changer, download the file and import it into your project.