Struct BandLayout 

pub struct BandLayout { /* private fields */ }

The 64-band log axis resolved against both analysis windows.

Pure: a function of the sample rate alone, built once at construction. Kept separate from SpectrumAnalyzer so the layout’s properties are testable without planning an FFT.

Implementations

impl BandLayout

pub fn new(sample_rate: u32) -> Self

Lay the axis out for sample_rate across the two shipped window sizes.

pub fn source(&self, band: usize) -> BandSource

Where a band’s magnitudes come from.

pub fn crossover_band(&self) -> usize

First band that reads the short window.

pub fn crossover_hz(&self) -> f32

Lower edge of the crossover band, in Hz.

pub fn starved(&self) -> usize

Low bands the long window still cannot resolve — see Self::starved’s field docs. Surfaced so the docs can quote a measurement.

pub fn band_for_freq(&self, hz: f32) -> usize

The log-frequency band that contains hz: the last band whose lower edge is at or below it.