#include <ladder.h>

Public Types
enum class	FilterMode { LP24 , LP12 , BP24 , BP12 , HP24 , HP12 }

Public Member Functions
void	Init (float sample_rate)

float	Process (float in)

void	ProcessBlock (float *buf, size_t size)

void	SetFreq (float freq)

void	SetRes (float res)

void	SetPassbandGain (float pbg)

void	SetInputDrive (float drv)

void	SetFilterMode (FilterMode mode)

Detailed Description

4-pole ladder filter model with selectable filter type (LP/BP/HP 12 or 24 dB/oct), drive, passband gain compensation, and stable self-oscillation.

Member Function Documentation

◆ Init()

void LadderFilter::Init ( float sample_rate )

Initializes the ladder filter module.

◆ Process()

float LadderFilter::Process ( float in )

Process single sample

◆ ProcessBlock()

void daisysp::LadderFilter::ProcessBlock	(	float *	buf,
		size_t	size )

Process mono buffer/block of samples in place

◆ SetFilterMode()

void daisysp::LadderFilter::SetFilterMode ( FilterMode mode )

inline

Sets the filter mode/response Defaults to classic lowpass 24dB/oct

◆ SetFreq()

void LadderFilter::SetFreq ( float freq )

Sets the cutoff frequency of the filter. Units of hz, valid in range 5 - ~nyquist (samp_rate / 2) Internally clamped to this range.

◆ SetInputDrive()

void LadderFilter::SetInputDrive ( float drv )

Sets drive of the input stage into the tanh clipper Valid in range 0 - 4.0

◆ SetPassbandGain()

void LadderFilter::SetPassbandGain ( float pbg )

Set "passband gain" compensation factor to mitigate loss of energy in passband at higher resonance values. Drive and passband gain have a dependent relationship. Valid in range 0 - 0.5 Internally clamped to this range.

◆ SetRes()

void LadderFilter::SetRes ( float res )

Sets the resonance of the filter. Filter will stably self oscillate at higher values. Valid in range 0 - 1.8 Internally clamped to this range.

The documentation for this class was generated from the following files:

Source/Filters/ladder.h
Source/Filters/ladder.cpp

Public Types

Public Member Functions