FrequencyAnalyzer class abstract interface

Analyses one audio track into a per-frame BandTable driving spectrum-reactive animations.

The real implementation decodes the track to PCM once before frame 0, runs the in-house FFT, sums the bass / mid / treble bins per analysis frame, resamples those per-hop sums onto one value per video frame, normalizes each band into [0, 1], and content-hash caches the table as JSON. Analysis is async, so it runs entirely in the pre-resolve pass — the frame loop only ever reads the resulting immutable table through BandTable.energyAt.

The spectral implementation is the one that ships, and the analyse-twice→identical-table property is the determinism proof. BandTable is the result; the real SpectralFrequencyAnalyzer is named in prose because it lives above core.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

analyze(AudioSource source, {required int fps, required int totalFrames}) → Future<BandTable>

Analyses source into a BandTable over a video of totalFrames frames at fps.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited