What is Chorus Effect?

Chorus Effect layers slightly detuned and delayed copies of your audio signal. Adjust depth, rate, delay time, and mix to control how thick the effect sounds. Works with voice, guitar, synths, or any audio source.

The processor copies your signal into 2 to 6 voices, each slightly delayed (5–50 ms) and modulated by a sine, triangle, or square LFO. Depth controls how far the pitch sways, rate how fast, and feedback how much of the delayed signal feeds back into the chain for extra thickness. The wet/dry mix lets you taste the effect from subtle warmth to full early-90s shimmer, and each voice is panned across the stereo image so the chorus widens a mono source on export. A waveform draws as soon as the file decodes and an animated trace tracks the processed output while you preview, so you can see exactly what the chain is doing before exporting. Start with one of the five named presets — Subtle, Classic, Lush, Shimmer, Heavy — and tweak from there.

How to use

1. Upload an audio file (MP3, WAV, OGG, FLAC, AAC, M4A or WebM). The waveform draws as soon as the file decodes so you can confirm it loaded.
2. Pick a preset (Subtle, Classic, Lush, Shimmer, Heavy) to start, then tune the sliders — depth (pitch variation), rate (modulation speed), delay (base time in ms), wet/dry mix — and choose the LFO shape (sine for smooth warble, triangle for an angular flutter, square for dramatic pitch jumps).
3. Toggle Bypass to A/B the dry signal against the chorus chain, drag the bar to scrub to any spot, tweak until it sits right, then download in your choice of WAV, MP3, OGG or FLAC.

When to use

• Adding 80s-style shimmer to a clean guitar take before mixing.
• Doubling a thin vocal so it sits richer in a mix without comping a second pass.
• Spreading a mono synth pad across the stereo field for ambient backings.

Result

A guitarist uploads a clean electric guitar recording, sets chorus depth to 40%, rate to 1.2Hz, and delay to 25ms. The result sounds like a classic 80s clean tone, which he downloads as a WAV file.

FAQ

What's the difference between depth and rate?

Depth is the size of the pitch swing: small depth (20%) gives a slight detune; large depth (80%) sounds vibrato-like. Rate is how fast the swing happens: 0.5 Hz is slow and shimmery, 3 Hz starts to wobble like a Leslie. Most musical chorus sits at 30–50% depth with rate 0.8–1.5 Hz.

Why does my exported file sound louder than the original?

Stacking 3+ voices adds energy, so the wet signal can clip 1–3 dB hotter than the dry. Drop the mix to 60–70% or pull master gain down a few dB before export if you're feeding the file into another stage of mixing.

Can I A/B the dry signal against the chorus without re-uploading?

Yes — the Bypass toggle in the transport row swaps the signal between the chorus chain and the untreated source while it plays. The wet/dry mix stays exactly where you left it so you can keep tweaking after switching back.

Does feedback turn this into a flanger?

At long delay times (25 ms+) feedback adds resonant ringing instead of true flanging. To get an actual flanger sound, drop delay below 10 ms and crank feedback to 60%+. The tool stays chorus-shaped because the delay floor is set for chorus territory.

What format does the export use?

You choose the format: WAV (uncompressed 16-bit 44.1 kHz), MP3, OGG or FLAC. MP3, OGG and FLAC are encoded on your device with FFmpeg — nothing is uploaded. A mono source is widened to stereo automatically when two or more voices are active and Stereo Width is above zero, so the spread you hear during preview is preserved in the file; true stereo sources keep their original channel count. Every format drops cleanly into any DAW for further mixing.

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