SIMLAF

SIMLAF Audio / Dynamics & EQ

Flagship · Dynamics & EQ

SIMLAF Spectral

Harsh peaks tamed. Zero latency.

SIMLAF Spectral finds harsh resonances and turns them down as they happen, adding 0 samples of latency by default.

Play the before and after Free 14-day trial

Store opens 27 November 2026.

  • 0 samples
  • 97 checks
  • 1/48 oct
  • 4 Parallel detection resolutions
SIMLAF Spectral open on a laptop on an oak desk in daylight, with studio headphones on a stand beside it
Licensed photograph. The screen shows a real SIMLAF Spectral screenshot.

Our own clip · SIMLAF Spectral

Same take. Spectral off, then on.

A bright synth lead with harsh upper-mid peaks, then the same take through Spectral's Vocal Harshness preset. Level-matched A/B.

Our own clip · SIMLAF Spectral

Hats come down. The log drum stays.

An Amapiano groove from NGOMA. Hats, shaker and claps drop about 4 to 6 dB between 3 and 8 kHz. Kick and log drum untouched.

Switch it yourself.

Press play, then tap Off and On as often as you like. The audio never stops, so you hear only what Spectral changes. Headphones help.

Bright synth leadSIMLAF Spectral · Resonance mode, stock preset Vocal Harshness

Your browser cannot run the player. Download the two files: Off · On.

Both sides: −18 LUFS.

Amapiano groove with bright hatsSIMLAF Spectral · stock preset Overheads Harsh Hits

Your browser cannot run the player. Download the two files: Off · On.

Both sides: −19.6 LUFS.

Each pair is the same take with Spectral off and on, matched in loudness so the louder side never wins, and the switch keeps the playback position. Your browser downloads the audio on your first tap.

Blind listening test

Soon: pick it with names hidden.

The same take twice, matched for loudness, names hidden until you answer. The first tests arrive with the launch.

See how the test works

You decide where it works.

Draw an 8-node sensitivity curve to aim it, then press Delta to hear only what Spectral is taking away.

SIMLAF Spectral on its Vocal Harshness preset, with the sensitivity curve, reduction and history

What is SIMLAF Spectral?

SIMLAF Spectral is a resonance suppressor and spectral dynamics plug-in for macOS, in AU and VST3, plus a standalone app. Spectral finds harsh resonances and tames them as they happen. It also compresses, expands and ducks across the spectrum. Minimum-phase processing keeps it at zero latency by default, with linear phase there when you want it.

01

Four detectors at once

Four parallel detection resolutions on a 1/48-octave grid.

02

Tell it where to work

An 8-node sensitivity curve sets where it works hardest and where it leaves the signal alone.

03

More than suppression

Spectral compression, expansion and side-chain ducking, with an external key input.

04

Hear what is removed

Delta plays only the part of the signal Spectral is taking away.

05

Every stereo mode

Stereo, mid/side, mid-only and side-only.

Spectral, in four numbers.

Minimum phase keeps it at 0 samples. Switch to linear phase when you want it. AU, VST3 and standalone, on macOS 10.13 or later.

0samplesLatency by default (minimum phase)
97checksAutomated checks
1/48octDetection grid
4Parallel detection resolutions
Try it free for 14 days

Store opens 27 November 2026.

SIMLAF Spectral · The Whole Studio

$79 alone, or $199 with 34 more.

Spectral alone is $79. Pick it with 2 other flagships for $179, or get all 35 audio products for $199 until 31 January 2027.

SIMLAF Spectral

$79

Spectral on its own, yours to keep.

Buy SIMLAF Spectral

Producer Pack

$179

Any 3 of the 12 flagships at launch.

Choose your 3
Best value

The Whole Studio

$199

All 35 audio products at launch, worth $1,715, plus SIMLAF 2 when it ships in December 2026, KAMILI and KARAKANA when each is released.

Buy The Whole Studio

$199 until 31 January 2027, then $399: a fixed date, announced now. Or all 23 SIMLAF FX effects in the SIMLAF FX Suite for $99.

Buy The Whole Studio · $199

Or buy Spectral alone · $79

Store opens 27 November 2026.

Tech specs

Formats & system

  • TypeResonance suppressor and spectral dynamics plug-in
  • FormatsAU · VST3 · Standalone · no AAX
  • NeedsA host that loads AU or VST3 plug-ins, or none: it also runs as an app
  • macOS10.13 or later; built for Intel and Apple Silicon (Apple Silicon testing in progress)
  • WindowsComing December 2026
  • Latency0 samples by default · linear phase optional
  • ActivationOnline once, then offline

Price & licence

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SIMLAF Spectral$79 · or in The Whole Studio
Try free · 14 days