dspark::Smoothers::ButterworthSmoother Class Reference

Butterworth low-pass smoother for maximally flat response. More...

#include <Smoothers.h>

Public Member Functions
void	reset (double sampleRate, float timeConstantMilliseconds, float initialValue=0.0f) noexcept
void	setTargetValue (float newTarget) noexcept
float	getNextValue () noexcept
float	getCurrentValue () const noexcept
float	getTargetValue () const noexcept
bool	isSmoothing () const noexcept
void	skip () noexcept

Static Public Attributes
static constexpr float	epsilon = 1e-6f

Detailed Description

Butterworth low-pass smoother for maximally flat response.

Internal state is double precision. This is not optional here: smoothing time constants put the cutoff a few Hz above DC, where the TDF-II biquad has b0 ~ 1e-8; in float the state recursion loses the tiny increments to rounding and the step response stalls far short of the target. The public API stays float.

Definition at line 285 of file Smoothers.h.

Member Function Documentation

getCurrentValue()

float dspark::Smoothers::ButterworthSmoother::getCurrentValue ( ) const

inlinenoexcept

Definition at line 294 of file Smoothers.h.

getNextValue()

float dspark::Smoothers::ButterworthSmoother::getNextValue ( )

inlinenoexcept

Definition at line 741 of file Smoothers.h.

getTargetValue()

float dspark::Smoothers::ButterworthSmoother::getTargetValue ( ) const

inlinenoexcept

Definition at line 295 of file Smoothers.h.

isSmoothing()

bool dspark::Smoothers::ButterworthSmoother::isSmoothing ( ) const

inlinenoexcept

Definition at line 755 of file Smoothers.h.

reset()

void dspark::Smoothers::ButterworthSmoother::reset ( double  sampleRate, float  timeConstantMilliseconds, float  initialValue = 0.0f  )

inlinenoexcept

Definition at line 696 of file Smoothers.h.

setTargetValue()

void dspark::Smoothers::ButterworthSmoother::setTargetValue ( float  newTarget )

inlinenoexcept

Definition at line 736 of file Smoothers.h.

skip()

void dspark::Smoothers::ButterworthSmoother::skip ( )

inlinenoexcept

Definition at line 767 of file Smoothers.h.

Member Data Documentation

epsilon

constexpr float dspark::Smoothers::ButterworthSmoother::epsilon = 1e-6f

staticconstexpr

Definition at line 288 of file Smoothers.h.

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

• Smoothers.h