Yet Another Synthesizer Engine
 
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Public Member Functions | List of all members
yase::ExpDecay Class Reference

#include <exp_decay.hh>

+ Inheritance diagram for yase::ExpDecay:
+ Collaboration diagram for yase::ExpDecay:

Detailed Description

An exponentially decaying envelope.

This module produces an output named "signal" that exponentially decays from the input "from" to the input "to" according to the equations

x = exp(-kt)
y = u_from * x + u_to * ( 1 - x )

Calling the method trigger() resets the envelope.

Parameters
[in]rateThe decay rate
[in]fromThe starting value
[in]toThe ending value (in the limit as t gies to infinity)
[out]signalThe output signal

Public Member Functions

void trigger ()
 Reset the envelope to output the value specified by the input "from".
 
void init ()
 
void update ()
 
- 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 ()
 

Member Function Documentation

◆ init()

void yase::ExpDecay::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.

◆ update()

void yase::ExpDecay::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.

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