Monster Voice Changer
This one changes your voice so it sounds sort of like a big evil troll/monster. Behind the scenes I've done some fancy stuff with oscillating signals such that it's deeper and slightly distorted (like the monster's voice box is a bit damaged or something), and then I've cleard out the high frequency parts of the signal to smooth it off.
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PA Speaker Voice Changer
This one is meant to sound like a booming PA (public announcement) speaker that's very bad quality. I imagined it was from some sort of distopian authoritarian government telling its citizens what to do, but I think you could just as easily use it as if it was a PA speaker from the 50s or something. It first distorts your voice a bit and makes the signal noisy and then adds an echo effect.
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Reverse Reverb Voice Changer
This one uses a "reverse reverb" effect to essentially make your voice echo backwards. It gives your voice an eerie vibe that sounds like a ghost or spirit from a horror movie.
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Echo Voice Effect Online
This voice effect simply makes it sound like you're standing in a very large room. The echo is applied using a very cool audio technique known as "impulse response convolution".
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Telephone Voice Changer
This one simply removes high and low frequencies to simulate the effect of your voice being transmitted through a telephone.
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Alien Voice Changer
This adds a very strange wobbling effect to your voice which make it sound like an alien who has learned how to speak your language, but it struggling - it's an alien accent, if you will.
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Wobbling Voice Changer
This one is fun :) It oscillates your voice between high and low pitches in a way that makes it seem like time isn't flowing consistently - something's gone wrong with reality.
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Alien Voice Changer
This one sounds like a dangerous alien - perhaps one that is part robot or something.
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Robot Alien Voice Changer
I got a robot alien vibe from this one when I stumbled across it. It's also a little insect-like. So maybe a robot alien insect.
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Anonymous Voice Changer
We've all heard the anonymising voice effect before, and this one is similar, except it adds a slight distortion to your voice to make it more on the "hacker" side of things. Note that this shouldn't be used for real anonymising! It's just for fun.
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Reversed Voice Converter
This simply takes your input audio and reverses it :)
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Old Radio Audio Effect
This effect adds some fuzz and distortion, and plays around with the frequency spectrum a bit to try and emulate the sound of an old radio.
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Cymbal Voice Effect
This is a strange one. It uses "impulse response convolution" to create an "echo" of your voice that sounds a bit like a cymbal in a drum kit.
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Dalek Voice Changer
This uses a "ring modulator" to simulate the same electronics that were used to generate the Dalek's voice in Doctor Who. You should do try to make your voice sound like the Dalek's when you record the audio, and this effect will do the rest.
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Wah-Wah Voice Effect
This adds a "wah-wah" effect to your voice. The "wah-wah" effect is often used in certain types of music via the use of a "wah-wah" pedal.
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Vibrato Voice Effect
This ads a steady pitch oscillation to the input audio which (if applied to singing) can make it sound like your singing with vibrato when you're not.
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Demon Voice Changer
With this effect I tried to create the sense that it was an epic demon beast thing. Much like the Balrog from Lord of the Rings. It adds some fire crackling effects in the background, deepens your voice, and adds an ominous echo.
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Cave Echo Voice Changer
This one adds an echo that makes it sound like the voice is coming from a huge cave.
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Robot Voice Changer
This gives your voice a metallic, higher pitched timbre which makes it sound like it's coming from a robot.
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Robot Voice Changer
This gives your voice a very harsh, slightly fuzzy and robotic sound.
Robot Voice Changer
This changes your voice into a very "tinny" little robotic-sounding voice.
Robot Voice Changer
This adds some random "beep boop" noises to the background and gives your voice a very computerised timbre.
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Very Slow Voice Effect
This makes your voice very slow (quarter speed).
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Slow Down Audio
This one slows down your voice to half speed.
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Speed Up Audio
This one doubles the speed of your voice.
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Very Fast Audio Effect
This generates an audio clip that's 4 times as fast as the input clip.
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Portable Radio Effect
This manipulates the input so that it sounds like a very old portable radio. Depending on the level of noise in the input audio clip, the output may actually be hard to understand.
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This one chops your input clip up into pieces and then scrambles them around randomly.
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School PA Voice Effect
Changes your voice so it sounds like it's coming from an old and run-down school PA speaker.
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Noisy Audio Effect
This effect makes your input audio sound like it has been transmitted via an extremely noisy medium.
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Sauron Voice Changer
I've tried to make this effect sound like Sauron's voice (from Lord of the Rings). He doesn't talk much in the movies, but when he does it's very deep and has a slight ominous echo.
Russian Voice Effect
This is a silly effect that chops up the audio clip into segments, reverses them, and then puts them all back together. It sounds a little like some eastern European languages.
Silly Voice Effect
This one does some funky reversing stuff that just makes the output audio sound very strange and confusing but still understandable.
Satan Voice CHanger
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Deep Voice Changer
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High Voice Changer
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Chipmunk Voice Changer
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Synth Voice Effect
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Bane Voice Changer
This effect applies a slight radio-like distortion to the input audio which makes it sound like it's coming from Bane's make (Bane form the Batman series).
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