Most material drifts from an even tonal balance — a build of low-mid energy here, a thin top there. Correcting it by hand means staring at an analyzer and drawing EQ moves that stop being right the moment the arrangement changes.
Planar does it continuously. It analyses the signal one frequency band at a time, compares each band against a target curve, and nudges it toward where the target says it should sit. The reference is a pink-style spectrum — flat energy per octave — anchored to the running level of the bands that are actually above threshold, so quiet bands never drag the balance around.
Place Planar on a bus, set a threshold so the meter shows the body of the material above the line, and it pulls the spectrum toward a balanced target as the music plays.
Four ideas explain almost everything Planar does: the target, the anchor, the per-band correction, and the gate that decides which bands move.
Planar measures the signal's tonal balance and corrects it toward a target curve. At its default the target is a pink-style spectrum — equal energy per octave — which is the balance most full-range material is judged against. You never draw an EQ shape by hand; you tell Planar what "balanced" should mean and it does the moving.
The target is not a fixed line in absolute dB. It is anchored to the running average level of the bands that are above threshold — the parts of the spectrum that actually carry energy right now. Quiet, sub-threshold bands are metered but excluded from the anchor, so a near-silent top octave or a momentary gap cannot pull the reference off and trigger correction where none is wanted.
The spectrum is split into analysis bands — you choose how many. Each band is compared to where the target says it should sit and nudged toward it, independently. A band sitting above the target is cut; a band below it is lifted; a band already on target is left alone. The display tints each band by what happened to it.
A per-band threshold and knee decide which bands are eligible for correction. Bands below the threshold are metered but not touched; bands above it are corrected, fading in across the knee rather than switching hard. A target-shaping EQ section — tilt, shelves, a bell, and the window edges — biases what the target asks for, and the dynamics and coefficient controls decide how fast and how firmly Planar follows it.
Planar's correction tracks the program material in real time. The target-shaping controls set the goal; the correction itself is always live, gated by threshold and shaped by the detector. Turning a shelf does not move the output directly — it moves the target the corrector is aiming at.
Planar runs on Windows in VST3 and CLAP, and on macOS in VST3, AU, and CLAP. Installation places the plugin in the standard system folders that compatible DAWs scan automatically.
Open the settings gear and choose Manage license, or use the AUTHORIZE button shown when the plugin is unlicensed, then enter the license key from your purchase confirmation. Once accepted, the key is stored and applies to every instance on that machine. Software activations are not part of a normal file backup, so after rebuilding or replacing a system drive you will need to reactivate; this is expected and not a fault in the plugin.
Before authorization Planar runs in demo. Use START DEMO from the license panel to begin the trial. It processes audio normally but introduces periodic brief silences, which lets you evaluate the correction fully before purchase without committing the sound to a render. The AUTHORIZE, PURCHASE, and START DEMO buttons disappear once the plugin is licensed.
Planar checks brucejames.studio/version.txt and shows an indicator in the settings menu when a newer build is available. Updates install over the existing version and preserve your presets and project state. The plugin window is 1980 × 1440 px at 100 % and scales to 50 %, 75 %, or 100 % from the settings gear.
Automatic tonal balancing on a bus, start to finish, in under five minutes. Leave the target shaping at its defaults for the first pass and let the pink target do the work.
Bands ≈ 32 · Phase ON (linear) · Threshold set so the program body sits above the line · target EQ neutral · Mix 50–100 %. A balanced default for most full-range busses before you bias the target.
Switch Phase OFF for the minimum-phase path. It drops the FFT latency for low-latency monitoring at the cost of linear phase — see the Phase modes section.
A header strip of mode buttons and the LCD readout, a large read-only spectrum display in the middle, and two rows of knobs grouped into labelled wells — brass for target shaping, pink for dynamics and output.
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The brass row shapes what the target asks for; the pink row decides how the correction behaves. The cap colour is the function-group code throughout the plugin.
The brass row — target shaping. These controls bias what the corrector aims at. At their neutral defaults the target EQ is transparent and the target is a pink curve.
| Control | Range | Behaviour |
|---|---|---|
| Start (HPF) | 20–2000 Hz | Low edge of the corrected range. Bands below this are left untouched, so you can keep the sub out of the correction. |
| End (LPF) | 1k–20k Hz | High edge of the corrected range. Bands above this are left untouched, so the very top can be excluded from balancing. |
| Control | Range | Behaviour |
|---|---|---|
| Tilt | 0–100% | Spectral slope of the target. 0 = pink (flat per octave). Higher tilts the target darker, pivoting around ~630 Hz so overall level holds. |
| LR Link | 0–100% | Blends each channel's correction toward the L/R average. 0 = independent (can move the stereo image); 100 = identical correction on both channels (image-safe). |
| Control | Range | Behaviour |
|---|---|---|
| Low Shelf Freq | 20–600 Hz | Corner of the low shelf applied to the target. |
| Low Shelf Boost | −12–+12 dB | Lifts or dips the low end of the target — tells the corrector to keep more or less low-end energy. |
| Mid Freq | 100–2000 Hz | Centre of the target bell. |
| Mid Gain | −12–+12 dB | Bell gain on the target. |
| Mid Q | 0.1–10 | Bell width and steepness. |
| High Shelf Freq | 2k–20k Hz | Corner of the high shelf applied to the target. |
| High Shelf Cut | −12–0 dB | Pulls the high end of the target down. Cut-only — useful for a darker, more analog-leaning target. |
The shelves and bell move the target curve, not the audio directly. A High Shelf Cut plus some Tilt biases the corrector toward a darker balance; a Low Shelf Boost tells it to preserve more bottom. The correction still tracks the program — you are changing what "balanced" means for this source.
The pink row — dynamics and output. These decide which bands are corrected, how fast, how firmly, and how much of the result reaches the mix.
| Control | Range | Behaviour |
|---|---|---|
| Threshold | −60–0 dB | Per-band level above which correction engages. Bands below it are metered but not corrected. |
| Knee | 0–24 dB | Soft-knee width below the threshold; correction fades in quadratically across the knee instead of switching hard. |
| Clamp | 0–100% | When a corrected band would land above both the target reference and its own dry level, pulls the gain back toward dry. 0 = off, 100 = full. |
| Control | Range | Behaviour |
|---|---|---|
| Ignore | 0–100% | Transient Bypass — on a detected transient, momentarily backs off the correction so the hit punches through uncorrected. |
| Release | 20–1000 ms | Recovery time of the transient duck. It opens fast (fixed) and releases over this time — tune it out of the rhythmic pumping zone. |
| Control | Range | Behaviour |
|---|---|---|
| Atk | 0.1–500 ms | How fast the per-band RMS detector tracks rising level. Floored per band so low frequencies stay clean. |
| Rel | 1–2000 ms | How fast the detector tracks falling level. |
| Recover | 0–2000 ms | Glide time on the applied correction gain itself, independent of the detector. 0 = snappy, higher = lazier. |
| Control | Range | Behaviour |
|---|---|---|
| Bands | 4–128 | Number of analysis and correction bands. More = finer resolution, more CPU. |
| Trim | −12–+12 dB | Shifts the target reference level up or down. |
| Mix | 0–100% | Dry/wet blend at the output. 100 % = fully corrected. |
| Control | Type | Behaviour |
|---|---|---|
| Bypass | toggle | Mutes the correction but keeps the latency path running, so a bypassed A/B stays time-aligned. |
| Null | toggle | Outputs corrected − dry, so you hear only what Planar adds. Tracks Mix — at Mix 0 it is silent. |
| Phase | toggle | On = linear phase (FFT, adds latency, for mix/master); off = minimum phase (IIR, low latency, for tracking). |
| FFT Size | 4096 / 8192 / 16384 | Linear-phase only. Larger = better low-end resolution, more latency. |
The Phase button chooses the processing path; the display shows you the result of the correction in real time, band by band.
For each band the left half of its column is the input level and the right half is the post-correction output. Output columns are tinted by what happened: red where the band was boosted above its input, blue where it was cut below it, green where it was left unchanged. Two lines overlay the bars and a gated threshold sits across them.
Schematic. The yellow correction line traces the gain Planar is applying; the cyan line is the target it aims at. The red threshold line — with the shaded knee region above it — marks the gate: bands whose energy falls below it are metered but left uncorrected. The display is read-only; there is no mouse interaction on it.
Starting points, not rules. Set the window and threshold first, then bias the target, then decide how fast the correction should follow.
Place Planar on a mix or stem bus and leave Phase ON. Set Bands to around 32, the Threshold so the body of the material shows above the line, and Mix to taste — 50–100 %. Planar pulls the spectrum toward the pink target without a single manual EQ move.
Use the target EQ and Tilt to bias the target away from flat pink. A small High Shelf Cut plus some Tilt yields a darker, more analog-leaning balance; a Low Shelf Boost tells the corrector to keep more low-end energy. The Mid bell nudges a single region toward or away from the target.
Switch Phase OFF for the minimum-phase IIR path. Use a faster Attack and Release and a moderate Transient Ignore so drum transients stay intact while the sustain is still balanced. No FFT latency to compensate.
On drums and percussive busses, raise Transient Ignore and tune Release so the correction ducks under each hit and recovers between them. Steady correction would dull the attack; this lets the transient punch through uncorrected and the balancing act only on the sustain.
Enable Null and solo the track to hear only the correction signal. It confirms the effect is artifact-free and shows exactly which bands are moving. Because Null tracks Mix, lowering Mix lowers what you hear; at Mix 0 it is silent.
When correcting a stereo bus you do not want widened or narrowed, raise LR Link toward 100 %. Both channels then receive identical per-band gain, so the correction balances the tone without moving the stereo image.
Use of Planar is governed by the end user license agreement included with the distribution as license.txt. Please refer to that file for the full terms. Your purchase authorizes installation under the conditions described there.
The distribution archive contains the installer along with readme.txt for installation notes, CHANGELOG.md for version history, and license.txt for the agreement. The readme and changelog are the canonical source for anything installation-related.
Including your DAW, its version, your operating system, and the plugin format you are running helps support resolve issues faster.
Per-band spectral balancing · macOS and Windows · VST3, AU, and CLAP
Generated for Planar 1.0.0 — verify controls against the plugin.