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yves-vogl merged 1 commit into from
Sep 19, 2026
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docs(presets): document every shipped factory preset #126

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6 changes: 3 additions & 3 deletions docs/presets.md
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Expand Up @@ -4,9 +4,6 @@ Twelve factory presets ship with Crypta. All settings are starting
points designed against the research-derived v0.2.0 defaults (`docs/design-brief.md`'s Factory
Presets section), not exact renders against any reference material.

**Three of them are not described below yet** — *Circuit Foundation*, *Circuit Grind* and
*Circuit Knife*, added in v0.3.0 (basilica-audio/Crypta#117).

Since issue #111 a preset may carry an **optional IR reference** — the SHA-256
of the impulse-response file it was voiced with (see `src/presets/IrReference.h`).
It resolves against the user's IR library folder first
Expand All @@ -29,3 +26,6 @@ had, nothing is substituted, and a notice names the missing cabinet
| **Definition Only** | Bass | Showcases the high band's harshness-control role: Tight pulled up, Drive kept moderate, EQ presence bump engaged. |
| **Clean Low, Loud Top** | Bass | Low band audibly present but mostly uncompressed (Mix pulled down), mid/high pushed harder. |
| **Cab-Colored Grind** | Bass | Demonstrates the v0.2.0-relocated IR loader coloring only the Mid+High path while the low end stays uncolored. References the bundled **Modelled 8x10 Cone** cabinet (issue #111), so it sounds as made out of the box. |
| **Circuit Foundation** | Bass | The Circuit engine's own foundation tone: Drive Engine, Low Comp Detector and Gate Mode all left at their new v0.3.0 defaults (Circuit / Smooth RMS / Modern), with a widened mid band (Split Low 110 Hz, Split High 700 Hz), a soft-kneed, auto-makeup low-band glue at a parallel 70% Mix, restrained mid/high drive (25%/35%) with Razor voicing and a touch of even-harmonic High Bias, and a gentle Modern gate (45 dB range) for definition without obvious chatter. |
| **Circuit Grind** | Bass | Circuit engine throughout (Smooth RMS detector, Modern gate), tuned aggressive: a firm, fast low-band glue (-24 dB threshold, 4:1 ratio, hard 4 dB knee, auto makeup) under a driven mid band (55% Mid Drive) and a heavily driven Wool high band (75% Drive, 45% High Bias for extra even-harmonic grind), a tighter Modern gate (-52 dB threshold, 60 dB range) and a -1.07 dB output trim to compensate for the added level. |
| **Circuit Knife** | Bass | Circuit engine throughout (Smooth RMS detector, Modern gate), with a light touch on the low band (60% Mix, gentle -16 dB threshold) but the most extreme high band of the three: Gnaw voicing (symmetric, no High Bias) with High Tight pushed to 200 Hz and Drive to 90% for a narrow, cutting edge rather than a warm one, a tight, high-threshold Modern gate (-50 dB, 70 dB range) for percussive definition, and the largest output trim of the three (-2.04 dB) to tame the resulting brightness. |