Astronomical synth chorus.
For bass and guitar.
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The chorus sound that defined a generation of synthesizers, reimagined for guitar and bass.
- Inspired by one of the most beloved synth chorus circuits ever built
- Low-frequency crossover keeps bass tones clear and lets you explore tonal colors
- Stereo width control from mono to hard-panned stereo
- Rate and depth move together for consistent, musical modulation at any speed
- Deep white-box BBD modeling with anti-aliasing for pure analog character
- Zero-latency processing for immediate, real-time response
Lush. Wide. Surprisingly musical.
Demos
Guitar demo by Benn Romano
Bass demo by Benn Romano
"Circle" (Cosmic Milk on arpeggio) by Michele De Finis
"Circle" (arpeggio only) by Michele De Finis
Guitar demo by Giuseppe Monzo
Once upon a time a simple synth was designed with a single oscillator — not enough to create a full, rich sound. Its engineers added a stereo chorus to make up for it and, in the process, defined the sound of a generation. Cosmic Milk brings that very sound to guitar and bass.
Shimmer without mud
You walk into the studio or show up for a soundcheck and innocently mention you're using a stereo chorus. The engineer throws you a bad look — low frequencies modulated across channels can quickly muddy the mix.
Cosmic Milk features a X-Over control to solve exactly this. Keep lows unmodulated below a chosen frequency threshold, or decide which parts of your sound get fattened and which stay tight.
X-Over 100 Hz
X-Over 1 kHz
X-Over 10 kHz
More controls to define your sound
The original only had two (and a half) fixed modes that you could choose from and nothing else. Cosmic Milk opens that up and also gives you controls to decide on:
- The input Level, which you can use to push into saturation.
- How much Wet signal you want in the modulated path.
- Stereo width, all the way from 100% mono to hard-panned stereo.
- Modulation Rate, ranging from 0.1 to 10 Hz.
Unlike most choruses, which increasingly detune at higher rates, Cosmic Milk automatically adjusts modulation depth to keep the effect consistent and musical at any speed.
Rate 1 Hz
Rate 3 Hz
Rate 10 Hz
Sounds great, plays fast
Cosmic Milk is built to meet the highest sound quality standards while maintaining maximum playability.
Specifically:
- The engine runs internally at least at a 176.4 kHz sample rate to suppress digital aliasing.
- High-quality IIR resampling ensures zero added latency.
- The original analog circuit is modeled at the component level using white-box techniques, capturing not just the sound, but also the feel and behavior of the hardware.
The internal BBD chip is simulated using a specialized anti-aliasing technique developed and presented by me (Stefano) at the 28th International Conference on Digital Audio Effects (DAFx25).
In other words, you're getting this straight from the horse's mouth.
Go get it!
Curious to hear what you do with it.