SpectralTilt

SpectralTilt is a dynamic tilt EQ. It listens to the balance of lows vs. highs around a user‑set pivot frequency, then nudges the tone warmer or brighter in real time—within a limit you choose. It behaves like a tone “rider”: fast enough to track energy changes, smooth enough to avoid pumping, and predictable because it only has one degree of freedom (a pivoted tilt), not a complex multi‑band curve.

### Core idea

Split the signal around *Pivot (Hz)** into low and high bands (for detection only).

* Measure their RMS difference → convert to a target tilt amount.

Apply smoothing (*Attack / Release**) and scale with Sensitivity & Max Tilt.

Sum with your *manual Tilt** and render via matched low/high shelves (pan‑safe, identical L/R).

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## Controls

* Tilt (dB) – Manual tilt offset. +dB warms (lows up / highs down), –dB brightens.

* Pivot (Hz) – The frequency about which tilting occurs (typ. 800–1500 Hz on full mixes; lower for bass‑heavy material).

* Sensitivity (%) – How strongly detection moves the auto‑tilt (0–200%). 100% ≈ neutral. Try 50–120% for most sources.

* Attack (ms) – How quickly the tilt chases changes. Shorter = snappier; longer = steadier.

* Release (ms) – How quickly it returns when the energy difference falls.

* Max Tilt (dB) – Hard limit on the auto‑tilt range. Keeps moves tasteful (e.g., 3–6 dB).

* Output (dB) – Final makeup/trim after tilting.

* Bypass – Hard bypass (processing and gain are skipped).

> Tip: Set your desired static tone with Tilt, then enable gentle riding with Sensitivity 60–120%, Attack \~10–40 ms, Release \~150–400 ms, Max Tilt 3–6 dB.

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## Typical uses

* Mix bus: keep top‑end sheen consistent as arrangements change.

* Vocals: maintain brightness while avoiding harshness on loud consonants.

* Bass / 808: keep low‑end weight steady without dulling the click.

* Guitars / Keys: smooth part‑to‑part tonal jumps without automation.