yase::Fader Class Reference

#include <fader.hh>

Inheritance diagram for yase::Fader:

Collaboration diagram for yase::Fader:

Detailed Description

A Fader Module maps an input target to an output value.

Typically, the input comes from a Midi control such as a knob. Because such controls are discrete (for example, integers from 0 to 127), directly mapping the input to the output would result in abropt changes to the Fader value. The Fader object solves this with an internal state that uses proportional feedback to track the target, but moves continuously.

Typically, a list of fader objects is managed by a Controls object and a Fader object is not managed by the user directly.

Public Member Functions
	Fader ()
	Construct a new fader with range [0,1]. The default response is linear. And the default tracking gain is TRACKING_GAIN.
	Fader (double min, double max)
void	init ()
void	update ()
void	randomize ()
	Set the target of the fader to a random value from within its min and max values.
void	set_tracking_gain (double x)
void	linear ()
	Set the response of the fader to lienar.
void	exponential (double b)
Public Member Functions inherited from yase::Module
virtual void	init ()=0
virtual void	update ()=0
int	add_input (string name)
int	add_output (string name)
int	get_input_index (string name) const
string	get_input_name (int index) const
string	get_output_name (int index) const
int	get_output_index (string name) const
void	set_input (string name, double value)
void	set_input (int index, double value)
double	get_input (int index) const
double	get_input (string name) const
double	get_output (string name) const
double	get_output (int index) const
void	set_output (int index, double value)
void	copy_inputs (const Module &source)
void	copy_outputs (Module &destination) const
void	configure (std::vector< std::tuple< string, double > > assignments)
int	num_inputs () const
int	num_outputs () const
void	emit (Event e)
void	set_ts (double s)
double	get_ts ()

Constructor & Destructor Documentation

Fader()

yase::Fader::Fader	(	double	min,
		double	max
	)

Construct a new fader. The default response is linear. And the default tracking gain is TRACKING_GAIN.

Parameters

min	The minimum value of the fader
max	The maximum value of the fader

Member Function Documentation

exponential()

void yase::Fader::exponential ( double  b )

inline

Set the reponse of the fader to exponential with base b. See the documentation for Controls for details.

Parameters

b	The base of the exponential.

init()

void yase::Fader::init ( )

virtual

This method should be overridden by derived classes. It will usually be called once, after all modules and connections objects have been added to a synthesizer, but before the synthesizer starts running.

Implements yase::Module.

set_tracking_gain()

void yase::Fader::set_tracking_gain ( double  x )

inline

Set the tracking gain of the fader. A higher number results in a snappier response.

Parameters

x	The desired gain

update()

void yase::Fader::update ( )

virtual

This method should be overridden by derived classes. It will be called repeatedly by a synthesizer at a frequency determined by SAMPLE_RATE.

Implements yase::Module.

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

• include/fader.hh
• src/fader.cc