Robot Voice Changer
Three kinds of robot live here: the classic metallic Robot (ring modulation), the monotone Android (vocoder) and the harsh Exterminator. The page loads the classic.
Loading the Robot effect…
How the Robot effect works
Ring modulation multiplies your voice by a steady sine wave. At 30–80 Hz the result is the clanging, metallic tone used for sci-fi robots since the 1960s. A vocoder instead measures the loudness of your voice in 16 frequency bands and imposes it on a buzzing synth tone, so every syllable lands on one flat pitch.
Tips for a better robot voice
- Lower Ring Hz (30) sounds harsher and more mechanical; higher (120+) sounds alien.
- Speak in an even rhythm; robots do not use expressive pitch anyway.
- Try Android for a talking-computer monotone.
Using it in a call or game? Follow the Discord setup, the in-game setup or the Zoom setup. Got a recording instead? Use Apply to a file in the rack above.
Questions
How do you make a robot voice?
Use a ring modulator (voice × sine wave around 30–60 Hz) or a vocoder. Both are built into this page; pick Robot or Android.
Does the robot voice work in real time?
Yes. The effect runs in an AudioWorklet with a few milliseconds of processing delay.