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MicroDexed
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Code Issues Releases Wiki Activity

Added class for softening value changes.

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pull/3/head
Holger Wirtz 5 years ago
parent 0764e99395
commit 65bc71a03e
4 changed files with 94 additions and 65 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 74
      MicroDexed.ino
  2. 46
      SoftenValue.hpp
  3. 26
      UI.hpp
  4. 5
      config.h

74
MicroDexed.ino
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@ -130,9 +130,9 @@ uint8_t midi_timing_counter = 0; // 24 per qarter
elapsedMillis midi_timing_timestep;
uint16_t midi_timing_quarter = 0;
elapsedMillis long_button_pressed;
//SoftenValue <uint8_t> effect_filter_volume[NUM_DEXED](SOFTEN_VALUE_CHANGE_STEPS);
//SoftenValue <uint8_t> soften_filter_res[NUM_DEXED](SOFTEN_VALUE_CHANGE_STEPS);
//SoftenValue <uint8_t> soften_filter_cut[NUM_DEXED](SOFTEN_VALUE_CHANGE_STEPS);
SoftenValue <float> soften_volume;
SoftenValue <float> soften_filter_res[NUM_DEXED];
SoftenValue <float> soften_filter_cut[NUM_DEXED];
uint8_t effect_filter_cutoff = 0;
uint8_t effect_filter_resonance = 0;
uint8_t effect_delay_time = 0;
@ -147,9 +147,6 @@ elapsedMillis cpu_mem_millis;
#endif
config_t configuration = {0xffff, 0, 0, VOLUME, 0.5f, 0, DEFAULT_MIDI_CHANNEL};
bool eeprom_update_flag = false;
value_change_t soften_volume = {0.0, 0};
value_change_t soften_filter_res = {0.0, 0};
value_change_t soften_filter_cut = {0.0, 0};
// Allocate the delay lines for left and right channels
short delayline[MOD_DELAY_SAMPLE_BUFFER];
@ -348,13 +345,16 @@ void setup()
for (uint8_t i = 0; i < NUM_DEXED; i++)
{
soften_filter_res[i].init(1.0, 0.0, 1.0);
soften_filter_cut[i].init(1.0, 0.0, 1.0);
MicroDexed[i]->fx.Gain = 1.0;
MicroDexed[i]->fx.Reso = 1.0 - float(effect_filter_resonance) / ENC_FILTER_RES_STEPS;
MicroDexed[i]->fx.Cutoff = 1.0 - float(effect_filter_cutoff) / ENC_FILTER_CUT_STEPS;
MicroDexed[i]->fx.Reso = 1.0;
MicroDexed[i]->fx.Cutoff = 1.0;
}
// set initial volume and pan (read from EEPROM)
set_volume(configuration.vol, configuration.pan);
soften_volume.init(configuration.vol, 0.0, 1.0);
#if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC)
// Initialize processor and memory measurements
@ -447,62 +447,56 @@ void loop()
#endif
control_rate = 0;
// Shutdown unused voices
// check for value changes and unused voices
soften_volume.tick();
for (uint8_t i = 0; i < NUM_DEXED; i++)
{
active_voices = MicroDexed[i]->getNumNotesPlaying();
}
// check for value changes
if (soften_volume.steps > 0)
{
// soften volume value
soften_volume.steps--;
set_volume(configuration.vol + soften_volume.diff, configuration.pan);
#ifdef DEBUG
Serial.print(F("Volume: "));
Serial.print(configuration.vol, 5);
Serial.print(F(" Volume step: "));
Serial.print(soften_volume.steps);
Serial.print(F(" Volume diff: "));
Serial.println(soften_volume.diff, 5);
#endif
}
if (soften_filter_res.steps > 0)
soften_filter_res[i].tick();
soften_filter_cut[i].tick();
if (soften_filter_res[i].running())
{
// soften filter resonance value
soften_filter_res.steps--;
for (uint8_t i = 0; i < NUM_DEXED; i++)
{
MicroDexed[i]->fx.Reso = MicroDexed[i]->fx.Reso + soften_filter_res.diff;
MicroDexed[i]->fx.Reso = soften_filter_res[i].value();
#ifdef DEBUG
Serial.print(F("Filter-Resonance: "));
Serial.print(MicroDexed[i]->fx.Reso, 5);
Serial.print(F(" Filter-Resonance step: "));
Serial.print(soften_filter_res.steps);
Serial.print(soften_filter_res[i].steps());
Serial.print(F(" Filter-Resonance diff: "));
Serial.println(soften_filter_res.diff, 5);
Serial.println(soften_filter_res[i].diff(), 5);
#endif
}
}
if (soften_filter_cut.steps > 0)
{
// soften filter cutoff value
soften_filter_cut.steps--;
for (uint8_t i = 0; i < NUM_DEXED; i++)
if (soften_filter_cut[i].running())
{
MicroDexed[i]->fx.Cutoff = MicroDexed[i]->fx.Cutoff + soften_filter_cut.diff;
MicroDexed[i]->fx.Cutoff = soften_filter_cut[i].value();
#ifdef DEBUG
Serial.print(F("Filter-Cutoff: "));
Serial.print(MicroDexed[i]->fx.Cutoff, 5);
Serial.print(F(" Filter-Cutoff step: "));
Serial.print(soften_filter_cut.steps);
Serial.print(soften_filter_cut[i].steps());
Serial.print(F(" Filter-Cutoff diff: "));
Serial.println(soften_filter_cut.diff, 5);
Serial.println(soften_filter_cut[i].diff(), 5);
#endif
}
}
if (soften_volume.running())
{
set_volume(soften_volume.value(), configuration.pan);
#ifdef DEBUG
Serial.print(F("Volume: "));
Serial.print(configuration.vol, 5);
Serial.print(F(" step: "));
Serial.print(soften_volume.steps());
Serial.print(F(" diff: "));
Serial.println(soften_volume.diff(), 5);
#endif
}
}
#if defined (DEBUG) && defined (SHOW_CPU_LOAD_MSEC)

46
SoftenValue.hpp
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@ -24,19 +24,26 @@
*/
#ifndef SOFTEN_VALUE_H_INCLUDED
#define SOFTEN_VALUE_H_INCLUDED 1
template <class T>
class SoftenValue
{
public:
SoftenValue(uint16_t steps = 10);
SoftenValue(T from, T to, uint16_t steps = 10)
init(T value, T minimum, T maximum)
{
_from = value;
_to = value;
_steps = 0;
_diff = 0.0;
_min = minimum;
_max = maximum;
}
void update(T to, uint16_t steps)
{
_from = from;
_to = to;
_steps = steps;
_diff = (from - to) / _steps;
_calculate();
}
@ -58,6 +65,12 @@ class SoftenValue
{
_from -= _diff;
_steps--;
#ifdef DEBUG
Serial.print(F("Steps: "));
Serial.print(_steps, DEC);
Serial.print(F(" Diff="));
Serial.println(_diff, 5);
#endif
}
}
@ -74,11 +87,21 @@ class SoftenValue
return (_steps);
}
T diff(void)
{
return (_diff);
}
T value(void)
{
if (_steps == 0)
return (_to);
if (_from < _min)
_from = _min;
else if (_from > _max)
_from = _max;
if (std::is_same<T, float>::value)
return (_from);
else
@ -90,6 +113,8 @@ class SoftenValue
float _to;
uint16_t _steps;
float _diff;
T _min;
T _max;
void _calculate(void)
{
@ -100,6 +125,17 @@ class SoftenValue
}
else
_diff = (_from - _to) / _steps;
#ifdef DEBUG
Serial.print(F("Update SoftenValue: from="));
Serial.print(_from, 5);
Serial.print(F(" to="));
Serial.print(_to, 5);
Serial.print(F(" diff="));
Serial.print(_diff, 5);
Serial.print(F(" steps="));
Serial.println(_steps, DEC);
#endif
}
};

26
UI.hpp
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@ -28,6 +28,8 @@
#include "config.h"
#include "LiquidCrystalPlus_I2C.h"
#include "SoftenValue.hpp"
#include <LCDMenuLib2.h>
#include <Encoder.h>
@ -47,9 +49,9 @@ extern void strip_extension(char* s, char *target);
extern void eeprom_write(void);
extern bool get_voice_names_from_bank(uint8_t b);
extern bool load_sysex(uint8_t b, uint8_t v);
extern value_change_t soften_volume;
extern value_change_t soften_filter_res;
extern value_change_t soften_filter_cut;
extern SoftenValue <float> soften_volume;
extern SoftenValue <float> soften_filter_res[NUM_DEXED];
extern SoftenValue <float> soften_filter_cut[NUM_DEXED];
/***********************************************************************
GLOBAL
@ -432,12 +434,11 @@ void encoder_left_up(void)
#ifdef DEBUG
Serial.println(F("Volume +"));
#endif
if (configuration.vol < 0.96)
{
soften_volume.diff = 0.05 / SOFTEN_VALUE_CHANGE_STEPS;
soften_volume.steps = SOFTEN_VALUE_CHANGE_STEPS;
if (configuration.vol < 1.0)
soften_volume.update(soften_volume.value() + 0.05, SOFTEN_VALUE_CHANGE_STEPS);
else
soften_volume.update(1.0, SOFTEN_VALUE_CHANGE_STEPS);
eeprom_write();
}
UI_func_volume(0);
}
@ -446,12 +447,11 @@ void encoder_left_down(void)
#ifdef DEBUG
Serial.println(F("Volume -"));
#endif
if (configuration.vol > 0.04)
{
soften_volume.diff = -0.05 / SOFTEN_VALUE_CHANGE_STEPS;
soften_volume.steps = SOFTEN_VALUE_CHANGE_STEPS;
if (configuration.vol > 0.0)
soften_volume.update(soften_volume.value() - 0.05, SOFTEN_VALUE_CHANGE_STEPS);
else
soften_volume.update(0.0, SOFTEN_VALUE_CHANGE_STEPS);
eeprom_write();
}
UI_func_volume(0);
}

5
config.h
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@ -69,14 +69,12 @@
//*************************************************************************************************
#define DEXED_ENGINE DEXED_ENGINE_MODERN // DEXED_ENGINE_MARKI // DEXED_ENGINE_OPL
// EFFECTS
#define FILTER_MAX_FREQ 10000
// CHORUS parameters
#define MOD_DELAY_SAMPLE_BUFFER int32_t(TIME_MS2SAMPLES(20.0)) // 20.0 ms delay buffer.
#define MOD_WAVEFORM WAVEFORM_TRIANGLE // WAVEFORM_SINE WAVEFORM_TRIANGLE WAVEFORM_SAWTOOTH WAVEFORM_SAWTOOTH_REVERSE
#define MOD_FILTER_OUTPUT MOD_LINKWITZ_RILEY_FILTER_OUTPUT // MOD_LINKWITZ_RILEY_FILTER_OUTPUT MOD_BUTTERWORTH_FILTER_OUTPUT MOD_NO_FILTER_OUTPUT
#define MOD_FILTER_CUTOFF_HZ 3000
//#define USE_REVERB 1
#define USE_REVERB 1
//*************************************************************************************************
//* AUDIO SETTINGS
@ -191,6 +189,7 @@
// Teensy-3.5 settings
#undef MIDI_DEVICE_USB_HOST
#define MAX_NOTES 11
#undef USE_REVERB
#endif
#define TRANSPOSE_FIX 24

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