Phaser.h File Reference

Classic analog-modeled phaser effect using LFO-modulated allpass filter stages. More...

#include "../Core/Oscillator.h"
#include "../Core/DryWetMixer.h"
#include "../Core/AudioSpec.h"
#include "../Core/AudioBuffer.h"
#include "../Core/DspMath.h"
#include "../Core/StateBlob.h"
#include <algorithm>
#include <array>
#include <atomic>
#include <cmath>
#include <cstddef>
#include <cstdint>
#include <numbers>
#include <vector>

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Classes
class	dspark::Phaser< T >
	Zero-latency, highly optimized allpass-based phaser. More...
struct	dspark::Phaser< T >::FirstOrderAllpass

Namespaces
namespace	dspark
	Main namespace for the DSPark framework.

Detailed Description

Classic analog-modeled phaser effect using LFO-modulated allpass filter stages.

Creates the sweeping "jet" sound by passing the signal through a series of first-order allpass filters whose cutoff frequencies are modulated by an LFO. Includes an analog-style saturation stage in the feedback loop to emulate classic hardware behavior and prevent harsh digital clipping.

Three levels of API complexity are provided:

• Level 1 (Simple): setRate(), setDepth(), setMix()
• Level 2 (Intermediate): setStages(), setFeedback(), setFrequencyRange()
• Level 3 (Expert): setLfoWaveform(), setCenterFrequency()

Threading: prepare() belongs to the setup thread; processBlock() and reset() belong to the audio thread. All setters are lock-free atomic publications, safe from any thread; the LFO rate/waveform/spread are applied on the audio thread at the next block (the oscillators are not thread-safe). Non-finite setter arguments are ignored.

Dependencies: Oscillator.h, DryWetMixer.h, AudioSpec.h, AudioBuffer.h, DspMath.h, StateBlob.h.

dspark::Phaser<float> phaser;
phaser.prepare(spec);
phaser.setRate(0.5f);     // 0.5 Hz sweep
phaser.setFeedback(0.7f); // High resonance
phaser.processBlock(buffer);

Definition in file Phaser.h.