This page opens with the Robot voice selected. Press Start recording, say a sentence, and press it again: you hear it back as a robot straight away. Every other voice on the page works on the same recording, so you can compare Robot with Alien or Megaphone without speaking again.
What makes a voice sound robotic
Human speech moves constantly in pitch: questions rise, sentences fall, stressed words jump up. A machine voice in films has none of that: it speaks every word on one note, with a buzzing, slightly metallic tone. The words stay understandable because they live in the formants, the resonances of your mouth and throat, and those are kept.
This tool gets there with a phase vocoder. It analyses your voice in overlapping slices and rebuilds each one with its phases reset, so every slice starts in step. The result is a steady buzz at the slice rate, about 94 Hz for a 48 kHz recording, the pitch of a low male voice, carrying your words.
Making it your robot
Open Fine-tune under the voices:
- Distortion makes it grittier and louder, like a cheap speaker in a toy robot.
- Echo at 20 to 30 percent gives a spaceship-corridor feel; Reverb puts it in a big hall.
- Formant changes the robot’s size: up for a small helper droid, down for a giant.
- Tick Robot buzz on top of any other voice (Deep, Radio, Monster) to combine them.
Tips
Speak clearly and a little slower than usual: the robot keeps only the words, so mumbling is lost. Plain speech works far better than singing or music, which turn into a drone. Record close to the mic in a quiet room, because background noise gets the robot treatment too.
When it sounds right, download it as WAV for editing or MP3 for sharing, or use Share result to send a friend a link that opens the same settings for their own voice.
The settings on this page
robot · distortion 15%. Every setting can be changed under Fine-tune; the page only chooses where it starts.