LOCK™
Evidence before action.
One principle · five marks
The LOCK family is built on one principle: prove it, then act. GAINLOCK acts only on a proven feedback loop. FLOORLOCK opens only for proven speech. PHASELOCK aligns only to measured phase. DENGELOCK locks a balance it has measured. Everything else passes untouched — these processors exist to reduce intervention, not to add it.
Why “proven” is a physical word
Feedback is not a sound problem; it is closed-loop instability — the same mathematics that lives in bridge flutter, in a laser, in tokamak plasma and in a power grid. Its signature is always the same three things together: a locked frequency, exponential growth, and loop causality. A LOCK engine waits for that signature. Without it, the signal is not touched.
The five marks
The mark that started the family.
- Acts on
- The quality mark carried by the modules that listen once, during soundcheck, and then commit — thresholds, key bands and dynamics targets settle and stop drifting.
- Ships in
- Six PX drum modules · LM-2
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Opens for speech. Nothing else.
- Acts on
- A channel that stays locked until speech is proven. The threshold is not a constant: it rides the tracked room floor, so when the room gets louder the threshold climbs with it. How far it closes is a setting, not a fixed law: from a gentle hold down to an exact mute. It ships in the range that sounds natural on a stage, and the true-zero figure below is measured at full close. Opening evidence is larynx harmonics or sibilant energy, confirmed by the syllable rhythm of real speech.
- Ships in
- SC-16 · SC-1
- Measured
- True 0.0e+00 peak while locked at full close · full close 539 ms · zero chatter across an eight-word sentence · only −0.89 dB lost in the first 20 ms of the first syllable · six non-speech sources (applause, table knock, dropped microphone, held note, HVAC fan, cough) all closed inside 600 ms · fan 2205 ms → 405 ms, about 5.4× · 0.94% of one core for 16 channels at 48 kHz.
- Honest limit
- A sustained harmonic source between 70 and 300 Hz — a low organ pedal, a held bass note — measures as voice and will open the channel. So will a recording of speech played through a loudspeaker: no technology separates that from a live talker.
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More gain, less feedback.
- Acts on
- Feedback treated as a proven closed loop rather than a steady tone. Three stages: candidate (spectral sharpening), jury (frequency lock, exponential growth in dB, absence of harmonics, persistence), then loop proof — the insert sits inside the loop, so it correlates its input against its own past output. A fan, an organ, a flute cannot produce loop evidence, and are left alone.
- Ships in
- TZ-12 v2
- Measured
- Current TZ-12 base: +2.11 dB maximum stable gain, averaged across four synthetic rooms. Resonance capture across all eight octaves; a 5 kHz injection caught in 1.1 s under bass-heavy program.
- Honest limit
- The v2 targets are design targets and are deliberately not claimed here. Until a confirmed loop is found, not one sample changes in the signal path — there is no wideband automatic EQ behaviour.
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See your system. Lock your phase.
- Acts on
- A phone browser becomes the measurement microphone. A sweep plays, the phone listens, and the impulse response is recovered: phase, group delay, arrival time, polarity, and the alignment delay to apply.
- Ships in
- Standalone tool (in incubation)
- Measured
- Alignment repeatability ±0.06 ms across runs · clock drift ≈8 ppm and stable over four runs, with the correction applied. Poor microphone placement measured ±0.28 ms against ±0.06 ms for good placement — the uncertainty readout teaches measurement quality with a number.
- Honest limit
- This is a timing, phase and alignment tool — not a calibrated SPL meter and not an absolute EQ analyser: a phone microphone is not flat, though timing is unaffected by its colour. Bench-proven today; the venue tests are not done, so it is not called field-proven.
The engine finds the balance, then locks it.
- Acts on
- The auto-balance engine. Two layers: AUTO learns and sets its own working points, and stays transparent until it has learned; CONTROL leaves only the few decisions a working engineer actually makes — style, character, depth, on/off.
- Ships in
- SC-1 (pilot) · SC-16
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Where each mark stands
FIELD-PROVEN
SHIPPING
BENCH-PROVEN
IN DEVELOPMENT
NEW
Status labels are not marketing tiers — they say how far the evidence goes today. A mark is promoted only when a measurement promotes it.