Module input 

What the engine is given: measurements and the resolved design settings.

Upstream: the arguments of CorrectionEngine.__init__ (correction_engine.py:411–417) as calibration.make_engine passes them (calibration.py:564–581), plus the attributes it writes after construction (infra_boost_max_db, xo_peq_*, the lowered max_boost_db). The .secs-level settings (CalibrationSettings) are resolved into these values by the orchestrator, not here.

Structs

BundleLayout

A bundle layout (bundle_layouts entry other than 'values').

EngineConfig

The resolved design settings: the engine constructor’s surface.

Measurement

One measured impulse response: upstream’s (ir, sr, t0) tuple.

MeasurementSet

Measurements by position, then role.

SubManual

A sub’s manual settings: upstream calibration.sub_entry(), normalised.

Tuning

Engine knobs SECS 2 kept in environment variables or constructor defaults that production never changes. Defaults are upstream’s.

Enums

BandType

Crossover filter family (upstream BAND_TYPES).

BundleGain

Bundle gain policy (constructor bundle_gain).

DbaRow

DBA row of a sub in a DBA layout.

LayoutKind

Bundle layout kind (R30).

PhasePositions

Which positions the common excess phase is measured over (SECS_PHASE_POS).

Samples

Impulse-response samples in the precision they were stored with.

SubAllpass

BA all-pass policy (constructor sub_allpass).

SubMode

How BA treats a sub (R27).

Type Aliases

Allpass

One second-order all-pass (frequency Hz, Q).

Peq

One peaking band (frequency Hz, Q, gain dB), upstream’s PEQ tuple.