sbl::components::cv::CvInput Class Reference

Smoothed CV input with EWMA filtering and range scaling. More...

#include <input.hpp>

Collaboration diagram for sbl::components::cv::CvInput:

Public Member Functions
	CvInput (const CvInputConfig &config={})
	CvInput (Smoothing smoothing)
void	update (uint16_t raw)
	Feed a new raw ADC sample.
uint16_t	raw () const
	Last raw (unfiltered) value.
uint16_t	value () const
	Current smoothed value (0–65535)
int32_t	scaled (int32_t min, int32_t max) const
	Map smoothed value to an output range (linear)
int32_t	scaled_curved (int32_t min, int32_t max, uint16_t curve=dsp::curve::Log) const
	Map smoothed value with curve shaping.
void	reset ()
	Reset filter state.

Detailed Description

Smoothed CV input with EWMA filtering and range scaling.

Note

All public methods are ISR-safe — pure state machine with no hardware I/O.

Definition at line 51 of file input.hpp.

Constructor & Destructor Documentation

CvInput() [1/2]

sbl::components::cv::CvInput::CvInput ( const CvInputConfig &  config = {} )

inlineexplicit

Definition at line 53 of file input.hpp.

CvInput() [2/2]

sbl::components::cv::CvInput::CvInput ( Smoothing  smoothing )

inlineexplicit

Definition at line 56 of file input.hpp.

Member Function Documentation

raw()

uint16_t sbl::components::cv::CvInput::raw ( ) const

inline

Last raw (unfiltered) value.

Definition at line 66 of file input.hpp.

Referenced by sbl::components::control::Pot::raw(), sbl::components::cv::VoctInput::raw(), and update().

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reset()

void sbl::components::cv::CvInput::reset ( )

inline

Reset filter state.

Definition at line 106 of file input.hpp.

References sbl::primitives::math::Ewma::reset().

Referenced by sbl::components::control::Pot::reset(), and sbl::components::cv::VoctInput::reset().

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scaled()

int32_t sbl::components::cv::CvInput::scaled ( int32_t  min, int32_t  max  ) const

inline

Map smoothed value to an output range (linear)

Linear interpolation from [0, 65535] → [min, max]. Uses int64_t intermediate to avoid overflow. For non-linear mapping (frequency, filter cutoff), see scaled_curved().

Parameters

min	Output minimum (inclusive)
max	Output maximum (inclusive)

Returns

Scaled value in [min, max]

Definition at line 82 of file input.hpp.

References sbl::primitives::math::Ewma::value().

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scaled_curved()

int32_t sbl::components::cv::CvInput::scaled_curved ( int32_t  min, int32_t  max, uint16_t  curve = dsp::curve::Log  ) const

inline

Map smoothed value with curve shaping.

Applies ExpCurveWarp::warp() before scaling, useful for knob-friendly non-linear mapping (frequency, filter cutoff, gain).

Parameters

min	Output minimum (inclusive)
max	Output maximum (inclusive)
curve	Shape preset or arbitrary value (see sbl::dsp::curve)

Returns

Scaled value in [min, max]

Definition at line 98 of file input.hpp.

References sbl::primitives::math::Ewma::value(), and sbl::dsp::ExpCurveWarp::warp().

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update()

void sbl::components::cv::CvInput::update ( uint16_t  raw )

inline

Feed a new raw ADC sample.

Definition at line 60 of file input.hpp.

References raw(), and sbl::primitives::math::Ewma::update().

Referenced by sbl::cv::read(), sbl::cv::read_dma(), sbl::components::control::Pot::update(), and sbl::components::cv::VoctInput::update().

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value()

uint16_t sbl::components::cv::CvInput::value ( ) const

inline

Current smoothed value (0–65535)

Definition at line 69 of file input.hpp.

References sbl::primitives::math::Ewma::value().

Referenced by sbl::cv::read(), sbl::cv::read_dma(), sbl::components::cv::VoctInput::semitones(), sbl::components::control::Pot::set_pickup(), sbl::components::control::Pot::update(), and sbl::components::cv::VoctInput::value().

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

• src/sbl/components/cv/input.hpp