Module dsp 

Digital Signal Processing — module root

Provides signal buffers, window functions, envelopes, peak metering, signal generation, and re-exports the FFT, filter, and analysis sub-modules.

Re-exports

pub use fft::Complex32;

pub use fft::Fft;

pub use fft::RealFft;

pub use fft::FftPlanner;

pub use fft::FftPlan;

pub use fft::Spectrum;

pub use fft::Stft;

pub use fft::StftConfig;

pub use fft::Cqt;

pub use fft::Autocorrelation;

pub use fft::MelFilterbank;

pub use fft::Mfcc;

pub use fft::Chroma;

pub use filters::Biquad;

pub use filters::BiquadType;

pub use filters::BiquadDesign;

pub use filters::FilterChain;

pub use filters::Butterworth;

pub use filters::Chebyshev1;

pub use filters::Bessel;

pub use filters::FirFilter;

pub use filters::FirDesign;

pub use filters::Convolution;

pub use filters::OlaConvolver;

pub use filters::SvfFilter;

pub use filters::SvfMode;

pub use filters::CombFilter;

pub use filters::CombMode;

pub use filters::AllpassDelay;

pub use filters::MovingAverage;

pub use filters::KalmanFilter1D;

pub use filters::PllFilter;

pub use analysis::OnsetDetector;

pub use analysis::SpectralFluxOnset;

pub use analysis::HfcOnset;

pub use analysis::ComplexDomainOnset;

pub use analysis::BeatTracker;

pub use analysis::PitchDetector;

pub use analysis::LoudnessMeters;

pub use analysis::Rms;

pub use analysis::Leq;

pub use analysis::Lufs;

pub use analysis::DynamicRange;

pub use analysis::TransientAnalysis;

pub use analysis::HarmonicAnalyzer;

pub use analysis::Correlogram;

pub use analysis::DynamicsAnalyzer;

pub use analysis::SignalSimilarity;

Modules

analysis

Audio analysis and feature extraction — onset detection, beat tracking, pitch detection, loudness metering, transient analysis, harmonics, DTW.

fft

FFT library — Cooley-Tukey radix-2, real FFT, spectral analysis, STFT, CQT, autocorrelation, YIN pitch, Mel filterbank, MFCC, and Chroma.

filters

Digital filter library — Biquad IIR, higher-order cascades, FIR, convolution, state-variable filter, comb, allpass, moving average, Kalman, PLL.

Structs

ComplexSignal

A complex-valued signal (e.g. FFT output).

Envelope

Amplitude envelope follower with attack, hold, and release stages.

PeakMeter

dBFS peak meter with configurable hold time and fallback rate.

Signal

An owned time-series buffer with sample-rate metadata.

SignalGenerator

Factory for generating standard test/synthesis signals.

Enums

WindowFunction

Standard window functions for spectral analysis.

Functions

db_to_linear

Convert dBFS to linear amplitude.

freq_to_midi

Frequency in Hz to MIDI note number (A4 = 69, 440 Hz).

hz_to_mel

Convert frequency to Mel scale.

is_power_of_two

Check if n is a power of two.

linear_to_db

Convert linear amplitude to dBFS.

mel_to_hz

Convert Mel scale to frequency.

midi_to_freq

MIDI note number to frequency in Hz.

next_power_of_two

Next power of two >= n.

sinc

Sinc function (normalized): sinc(x) = sin(π·x) / (π·x).