OneTaskBy Tim King · Updated
Chorus Effect
Multi-Voice Stereo Chorus for Vocals, Guitar and Synths With Adjustable Width
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How the Chorus Effect works
Add a chorus effect to any recording to make one voice or instrument sound like several playing together. Choose how many voices, how fast and deep they drift, how wide they spread across the stereo field and how much to blend in, then preview and export without uploading anything.
How the chorus effect works
A chorus copies the signal, delays each copy by around 20 to 35 milliseconds and slowly wobbles that delay with a low-frequency oscillator. The wobble bends the pitch of each copy by a tiny amount, so when they are mixed back with the original the result sounds like a section of players who are never perfectly in tune or in time with each other.
Settings for a chorus effect
Rate sets how quickly the delay wobbles; 0.5 to 1.5 Hz is the classic smooth sound, while faster rates move towards vibrato. Depth is how far the delay swings, in milliseconds, and so how much the pitch drifts. Each extra voice uses a slightly different rate so the copies never line up. Width pans the voices apart for a wide stereo image, and mix balances dry against wet.
Where to use it
Clean electric guitar, electric piano, pads and backing vocals are the usual targets. On a lead vocal keep the mix low, around 20 percent, so the voice gains body without sounding seasick.
FAQ
What is the difference between chorus and flanger?
Both use a modulated delay, but chorus uses longer delays of 20 ms or more and no feedback, so it thickens. A flanger uses delays under 10 ms with feedback, creating a sweeping comb-filter whoosh.
Will the chorus make a mono file stereo?
Yes. The output is always stereo, and with width above zero the voices are spread left and right, so a mono recording comes out noticeably wider. Set width to zero to keep the voices centred.
Why does my audio sound out of tune?
Depth is too high for the rate. Large depth values bend the pitch more, which sounds detuned or wobbly on sustained notes. Lower the depth to two or three milliseconds or reduce the mix.
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