ref: f98d24f939182df6a21177b8dde5937d160c8996
dir: /LEAF/Inc/leaf-dynamics.h/
/*==============================================================================
leaf-dynamics.h
Created: 30 Nov 2018 11:57:05am
Author: airship
==============================================================================*/
#ifndef LEAF_DYNAMICS_H_INCLUDED
#define LEAF_DYNAMICS_H_INCLUDED
#ifdef __cplusplus
extern "C" {
#endif
//==============================================================================
#include "leaf-global.h"
#include "leaf-math.h"
#include "leaf-mempool.h"
#include "leaf-analysis.h"
/*!
* @internal
* Header.
* @include basic-oscillators.h
* @example basic-oscillators.c
* An example.
*/
//==============================================================================
// ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
/* Compressor */
typedef struct _tCompressor
{
float tauAttack, tauRelease;
float T, R, W, M; // Threshold, compression Ratio, decibel Width of knee transition, decibel Make-up gain
float x_G[2], y_G[2], x_T[2], y_T[2];
oBool isActive;
} _tCompressor;
typedef _tCompressor* tCompressor;
void tCompressor_init (tCompressor* const);
void tCompressor_free (tCompressor* const);
void tCompressor_initToPool (tCompressor* const, tMempool* const);
void tCompressor_freeFromPool(tCompressor* const, tMempool* const);
float tCompressor_tick (tCompressor* const, float input);
///
/* Feedback leveller */
// An auto VCA that you put into a feedback circuit to make it stay at the same level.
// It can enforce level bidirectionally (amplifying and attenuating as needed) or
// just attenutating. The former option allows for infinite sustain strings, for example, while
// The latter option allows for decaying strings, which can never exceed
// a specific level.
typedef struct _tFeedbackLeveler {
float targetLevel; // target power level
float strength; // how strongly level difference affects the VCA
int mode; // 0 for upwards limiting only, 1 for biderctional limiting
float curr;
tPowerFollower pwrFlw; // internal power follower needed for level tracking
} _tFeedbackLeveler;
typedef _tFeedbackLeveler* tFeedbackLeveler;
void tFeedbackLeveler_init (tFeedbackLeveler* const, float targetLevel, float factor, float strength, int mode);
void tFeedbackLeveler_free (tFeedbackLeveler* const);
void tFeedbackLeveler_initToPool (tFeedbackLeveler* const, float targetLevel, float factor, float strength, int mode, tMempool* const);
void tFeedbackLeveler_freeFromPool (tFeedbackLeveler* const, tMempool* const);
float tFeedbackLeveler_tick (tFeedbackLeveler* const, float input);
float tFeedbackLeveler_sample (tFeedbackLeveler* const);
void tFeedbackLeveler_setTargetLevel (tFeedbackLeveler* const, float TargetLevel);
void tFeedbackLeveler_setFactor (tFeedbackLeveler* const, float factor);
void tFeedbackLeveler_setMode (tFeedbackLeveler* const, int mode); // 0 for upwards limiting only, 1 for biderctional limiting
void tFeedbackLeveler_setStrength (tFeedbackLeveler* const, float strength);
//==============================================================================
//Threshold with hysteresis (like Max/MSP thresh~ object)
typedef struct _tThreshold {
float highThresh, lowThresh;
int currentValue;
} _tThreshold;
typedef _tThreshold* tThreshold;
void tThreshold_init (tThreshold* const, float low, float high);
void tThreshold_free (tThreshold* const);
void tThreshold_initToPool (tThreshold* const, float low, float high, tMempool* const);
void tThreshold_freeFromPool(tThreshold* const, tMempool* const);
int tThreshold_tick (tThreshold* const, float input);
void tThreshold_setLow (tThreshold* const, float low);
void tThreshold_setHigh (tThreshold* const, float high);
//////======================================================================
#ifdef __cplusplus
}
#endif
#endif // LEAF_DYNAMICS_H_INCLUDED
//==============================================================================