Lumen: shimmer reverb plugin for plates, halls and endless pads

What a shimmer reverb plugin does

A shimmer reverb pitch-shifts the reverb tail as it decays, usually up an octave, so the sound rises and glows instead of simply fading. The pitch shifter sits inside the feedback loop: each time the tail recirculates it is shifted again, which is why a single note can bloom into a bright, choir-like pad. Guitarists know the effect from shimmer pedals; in a DAW it turns vocals, keys and guitars into ambient beds.

With Shimmer at zero, Lumen is a regular algorithmic reverb for rooms, plates and halls. That makes it two plugins in one: an everyday vocal and drum reverb, and a sound-design tool when you turn Shimmer up. If you're new to reverb itself, start with what reverb is.

Reverb presets: rooms, plates, halls and shimmer

Choose the space by the job, not the name. Short decays keep a mix clear; long ones need gaps in the arrangement to be heard.

Vocal reverb plugin settings

A good vocal reverb adds space without pushing the voice back. Three settings decide that. Pre-delay holds the reverb off for a moment so the dry consonants land first and the words stay clear; 25 to 40 ms suits most vocals. Decay sets the tail length; 1.2 to 2 seconds works for most tempos. Low Cut removes the low end of the reverb, which is where it turns muddy; 200 to 300 Hz on vocals is a safe start.

Vocal Plate combines all three: 1.6 s Decay, 35 ms Pre-delay and a 250 Hz Low Cut at 22% Mix. On the demo, the voice gets a smooth, bright tail that follows each phrase but never washes over the next word.

For fast rap verses, shorten Decay to around 1 second. For slow ballads, switch to Big Hall and lower Mix so the size comes from the tail length, not from how loud the reverb is.

Plate reverb on vocals and snare

A plate reverb was originally a large steel sheet that vibrated when sound was fed into it, producing a dense, bright tail with no sense of a real room. That smooth, even character is why plates became the standard reverb for vocals and snares. Lumen's Vocal Plate and Snare Plate are algorithmic, tuned to that plate-style density and brightness rather than modeling a specific unit. Snare Plate has zero Pre-delay, a short 1.2 s Decay and a high 400 Hz Low Cut, so the snare gets a splash without the tail fighting the kick. Read more in what a plate reverb is.

Shimmer reverb settings: +5th, +Octave, +2 Octaves and -Octave

Shimmer sets how much of the pitch-shifted signal feeds back into the tail, and Pitch sets the interval. +Octave is the classic shimmer sound, bright and angelic. +5th is more harmonic and less obvious, good when the octave sounds too sweet. +2 Octaves is extremely bright and works best at low Shimmer amounts. -Octave turns the effect dark and ominous, as in Dark Cave.

Fifth Cloud uses +5th at 45% Shimmer with a 7 s Decay. Play a few chords through it and the tail fills in harmony above them, turning simple keys into a slow-moving pad.

Shimmer builds up fast in a dense mix. Raise Low Cut to 300 Hz or more, add some Damping to tame the highest partials, and keep Mix low on anything but intros, breakdowns and ambient tracks.

Infinite Pad takes this to the limit with a 20-second Decay, Modulation at 70% and a little octave shimmer. Send a single chord or vocal phrase to it, record the return to a new audio track, and you have an ambient bed to place under a verse. Reverse that recording and it becomes a swell that rises into the next section. Heaven Shimmer is the more playable version for guitars and intros, with a 9-second Decay and 60% Shimmer an octave up.

Keeping reverb out of the way

• Low Cut keeps the low end clear. Never let a reverb return carry much below 150 Hz; on bass and 808s, either skip reverb or cut it high.
• Damping darkens the tail as it decays, the way real rooms absorb highs. More damping sounds warmer and sits further back.
• Width narrows the reverb if it makes a mix feel unfocused. 70 to 80% often sounds wide enough.
• Modulation adds slow movement to the tail. Keep it lower on piano and tuned sounds, higher on pads and ambient material.

Using Lumen in Ableton Live, Pro Tools and FL Studio

Reverb usually goes on a send, so several tracks share one space and you can process the reverb separately. Set Lumen's Mix to 100% on a return and control the amount with each track's send level.

• Ableton Live: drag Lumen onto a Return track, set Mix to 100% and turn up the send on each track that needs it.
• Pro Tools: create a stereo Aux Input, insert Lumen (AAX) and feed it from a bus send on each track.
• FL Studio: load Lumen on an empty Mixer insert at 100% Mix, then route tracks to it as sends using the routing arrow and its level knob.
• Logic Pro: insert the AU version on an Aux channel and use the sends on each channel strip.

For a shimmer effect on a single part, an insert with Mix around 30 to 40% is fine. If you also use a delay, decide the order with delay or reverb first.