A free dynamic EQ
that shows its work.

An urgent fix, thanks to a user who sent a screen recording. Please update.

• Changing the slope of a Low Cut or High Cut no longer causes loud peaks. Switching the slope while your track played, for example from 24 to 30 dB/oct, could make Aurora's output jump to far above the level of your music for a moment. We measured peaks up to +25 dBFS from a signal at -12 dBFS, loud enough to hurt speakers and ears. Aurora 1.5 behaved the same way. Now the new slope fades in smoothly once it is ready, a fraction of a second after you pick it.
• Other changes during playback are smooth now, too. The same kind of jump could happen, less strongly, when you:
• changed a band's filter type or its stereo placement (Stereo, Left, Right, Mid, Side);
• switched between Zero Latency or Natural Phase and Linear Phase;
• changed a frequency in one big step, for example by typing a value, loading a preset or switching A/B;
• changed the Character setting (Clean, Subtle, Warm), also through a preset or A/B.

All of these now fade over to the new setting. Switching a band on or off fades too.

• Full screen opens in front of FL Studio's plug-in window. On a Mac, the full-screen spectrum could open behind FL Studio's floating plug-in window. It now opens in front.
• Safety net. If a broken value ever arrives from the host or appears inside Aurora, it is silenced instead of being passed on, and Aurora carries on playing normally.

Good to know: Some changes take effect a moment after you make them, because Aurora lets the new setting settle before it fades it in. That is usually a few hundredths of a second, and up to about a second for a Brickwall cut at a very low frequency.

Your sound doesn't change: with settings that stay as they are, Aurora 1.6.1 sounds exactly like 1.6.0. Projects and presets load unchanged.

New to 1.6? See what's new: https://13x.audio/products/aurora/1.6

macOS: universal VST3, AU and CLAP, Developer ID signed and Apple notarized. Windows: 64-bit VST3 and CLAP in a zip, with Install Aurora.cmd. Linux: x86_64 VST3, CLAP and LV2 in a .tar.gz with a per-user install script; glibc 2.35 or later.

Fixes and features from your feedback. Thank you!

Screenshots and short how-tos for every new feature: [What's new in 1.6](https://13x.audio/products/aurora/1.6).

• New file names: "13x Aurora". Our files no longer share their name with iZotope's Aurora reverb, so installing one can't replace the other. Projects and presets open unchanged. Updating? Afterwards, remove the old 13x Audio "Aurora" files. "Install Aurora.cmd" (Windows) and install.sh (Linux) do it safely, and never touch anyone else's files. On macOS, Aurora points you to the old file.
• Themes. Graphite, Midnight, Ember or Studio Light, from the gear menu.
• Full-screen spectrum. The analyzer and EQ curve fill your screen, fully editable.
• A real Slope control on cuts. On Low Cut and High Cut bands, the band editor's Q is now Slope (6–96 dB/oct, Brickwall), in sync with the mouse wheel and undo/automation. Gain is dimmed on types that ignore it. The shelf buttons show the right shapes.
• Menus stay put. On Windows with display scaling, menus and the Save preset dialog could open far from the plug-in and ignore clicks. They now open inside Aurora's window.
• Sidechain on Linux. The LV2 version now offers its sidechain (Ardour), and an unconnected sidechain no longer crashes it. The manual shows the routing per DAW.
• Dynamic EQ that acts from the first click. Switch it on while the track plays and the Threshold starts just under what the band hears. The Dynamics page shows the band's level against the Threshold and says when it doesn't reach it.
• Dynamic in the right-click menu. Switch a band's dynamics right from its node.
• De-harsh Delta. Hear only what De-harsh removes. Never saved, and it switches itself off when you close Aurora or stop playback.
• Smart double-click. The graph creates a Low Cut, Low Shelf, Bell, High Shelf or High Cut depending on where you click. Shift + double-click always makes a Bell, and you can turn this off in the gear menu.

• Manual with tutorials. Four step-by-step tutorials for the new features, plus sidechain routing per DAW (40 pages).

Your sound doesn't change: 1.5.1 projects and presets load and play back identically.

Manual install note: the files are now named 13x Aurora.vst3, 13x Aurora.component (macOS), 13x Aurora.clap and 13x-aurora.lv2 (Linux). If you copy them by hand, delete the old 13x Audio Aurora.vst3 / .component / .clap / .lv2. Ours are the ones whose bundle ID is audio.13x.aurora; leave iZotope's Aurora alone.

macOS: universal VST3, AU and CLAP, Developer ID signed and Apple notarized. Windows: 64-bit VST3 and CLAP in a zip, with Install Aurora.cmd. Linux: x86_64 VST3, CLAP and LV2 in a .tar.gz with a per-user install script; glibc 2.35 or later.

Two workflow features from user feedback. Thank you!

• Lock a node to one axis. Shift-drag a node to change only its frequency or only its gain; the other value stays exactly where it was.
• Solo a band while you hold. Alt-press (Option on a Mac) or middle-press a node to hear just that band; let go and the mix is back. Drag while you hold to sweep. Prefer the 1.5 toggle? Gear menu > Band solo > Latching.
• Listen without clicks. Listen now fades in and out, and the mix comes back exactly as it was, in Linear Phase too.
• Fixes. Nodes no longer jump when you start a drag off-centre, and two quick Alt-clicks no longer delete a band.

Your sound doesn't change: 1.5 projects and presets load and play back identically. Close your DAW, replace the old plugin files with the new ones, then rescan your plugins.

macOS: universal VST3, AU and CLAP, Developer ID signed and Apple notarized. Windows: 64-bit VST3 and CLAP in a zip. Linux: x86_64 VST3, CLAP and LV2 in a .tar.gz with a per-user install script; glibc 2.35 or later.

Aurora 1.5 turns Smart Ops into a guided workflow you can always take back, brings every Aurora in your project into one window, and makes comparisons fair.

• Smart Ops, step by step. Operation, range, learn, review, apply: the panel numbers the steps and marks the one to act on. Every suggestion is previewed dashed on the graph before anything changes, and Apply is one undo step.
• Learn as long as you play. Start learning, play the passage, then stop — or just stop playback. Pauses don't count, at least two seconds are needed, and the status says when the spectrum has settled. (1.4 always listened for exactly one second.)
• Revert that keeps your work. Revert takes back only what Smart Ops changed and you haven't touched; a band you edited stays whole. Restore before Apply lists every change it would discard first.
• Instances. Every Aurora in the project, in one window: edit another instance from here, lay its curve over yours, or compare all of them side by side. In FL Studio the VST3 and CLAP versions take the mixer track's name and colour.
• Fair comparisons. A/B slots with copy, undo and redo, bypass per band, Delta to hear exactly what the EQ changes, and Auto gain so Bypass, A/B and presets compare at equal loudness.
• Dynamics page. The selected band's live gain change — or why it can't act — next to its level and timing controls, the knee and the global lookahead with the latency it adds.
• A precise analyzer. Update speed and frequency precision up to an 8192-point FFT, calm highs at the finest settings.
• A clearer editor. FL Studio's band colours, one cue per band state, and 41 factory presets in nine folders.

Existing projects, presets and automation load unchanged; new parameters are off by default, so older sessions sound the same. Close your DAW, replace the old plugin files with the new ones, then rescan your plugins.

macOS: universal VST3, AU and CLAP, Developer ID signed and Apple notarized. Windows: 64-bit VST3 and CLAP in a zip. Linux: x86_64 VST3, CLAP and LV2 in a .tar.gz with a per-user install script; glibc 2.35 or later.