Natural Voice Disguiser: Free Online, No Sign Up

More versions

Variation: Pitch +4 and Tone -2: disguised upward instead.
Variation: With a 30 Hz robot buzz at 15%: harder to recognise, a little less natural.

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

Why it stops sounding like you

Part	Setting	What you hear
Note	Pitch -3	A speaking note lower than your own
Size	Tone +2.5	A smaller throat, the opposite of what a lower note normally comes with
Doubling	Chorus wobbling 1.1 times a second, 30% mix	A faint second voice that blurs the fine detail people know you by
Top end	Treble cut above 6 kHz	Less of the breath and hiss particular to your mouth and mic

Your habits give you away before your sound does

Change your rhythm. People know you by pace and pauses as much as by timbre, so talk a little slower or faster than your habit.
Drop your pet phrases and filler words. No slider hides the greeting you always use.
Keep your volume even and hold back your usual laugh; a laugh stays very recognisable through mild effects.
Try it on a friend who knows your voice well. If they pick you out, move Pitch one more step.

What a disguised voice is for

Use it where you'd rather not put your real voice on record: a public stream or video, voice chat with strangers in a game community, an interview where the speaker has asked to stay anonymous, a part in an audio drama. It's a privacy tool, not a way to pass as some particular person, and it lowers the odds of being recognised by ear without guaranteeing anonymity.

The upward clip (Pitch +4, Tone -2) suits low voices that go muddy when lowered further. The clip with a 30 Hz robot buzz at 15% is harder to recognise and a little less natural; pick it when hiding matters more than sounding ordinary.

The exact settings

Setting	Value
Noise gate	mutes the mic below -55 dB, between words
Pitch	-3 (lower)
Tone	+2.5 (sounds smaller)
Chorus / vibrato	wobbles 1.1 times a second, 30% mix
Treble cut	above 6 kHz
Bass	+2 dB below 180 Hz
Treble	-1 dB above 4 kHz

Free natural voice disguiser FAQ

Is the disguise impossible to see through?

No voice effect is. It makes you hard to recognise by ear, more so with the robot buzz, but treat it as privacy and not as a guarantee.

How is it different from the anonymous voice?

The anonymous voice is more extreme and obviously processed. The disguiser stays near a natural human voice, so listeners hear a person, just not you.

Can I disguise my voice in a recording?

Yes. Record or upload the audio in the Online Voice Changer, apply these settings and save the result for your video or podcast.

Does it work on a Twitch stream?

Yes, when you go live from Twitch's browser studio in Chrome and select Facecam Virtual Mic as the microphone there. Desktop streaming software can't see it.