spectral_equalizer.h File Reference

#include "fl/stl/int.h"
#include "fl/stl/vector.h"
#include "fl/stl/span.h"
#include "fl/stl/noexcept.h"

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Classes
class	fl::audio::SpectralEqualizer
	SpectralEqualizer applies frequency-dependent gain correction to address mid-frequency dominance and provide perceptual weighting of audio spectra. More...
struct	fl::audio::SpectralEqualizer::Stats
	Get statistics (for debugging/monitoring) More...
struct	fl::audio::SpectralEqualizerConfig
	Configuration for spectral equalizer. More...

Namespaces
namespace	fl
	Base definition for an LED controller.
namespace	fl::audio

Enumerations
enum class	fl::audio::EqualizationCurve { fl::audio::Flat , fl::audio::AWeighting , fl::audio::Custom }
	Equalization curve type. More...

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Class Documentation

fl::audio::SpectralEqualizer::Stats

struct fl::audio::SpectralEqualizer::Stats

Class Members
u32	applicationsCount = 0
float	avgInputLevel = 0.0f
float	avgOutputLevel = 0.0f
float	lastInputPeak = 0.0f
float	lastMakeupGain = 1.0f
float	lastOutputPeak = 0.0f

fl::audio::SpectralEqualizerConfig

struct fl::audio::SpectralEqualizerConfig

Collaboration diagram for fl::audio::SpectralEqualizerConfig:

Class Members
bool	applyMakeupGain = false	Apply makeup gain to compensate for overall level changes If true, automatically adjusts overall gain to maintain average level.
float	compressionRatio = 2.0f	Compression ratio (1.0 = no compression, higher = more compression) 2.0 = 2:1 ratio, 4.0 = 4:1 ratio, etc.
float	compressionThreshold = 0.7f	Compression threshold (0.0-1.0) Signals above this level are compressed.
EqualizationCurve	curve = EqualizationCurve::Flat	Equalization curve type.
vector< float >	customGains	Custom per-band gain multipliers (only used if curve = Custom) Size must match numBands. Default: all 1.0 (no eq)
bool	enableCompression = false	Enable dynamic range compression per band Compresses loud signals to reduce dynamic range.
float	makeupGainTarget = 0.5f	Makeup gain target level (0.0-1.0) The equalizer will scale output to maintain this average level.
size	numBands = 16	Number of frequency bands (must match FrequencyBinMapper output)