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574 lines
16 KiB
574 lines
16 KiB
/*
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MicroDexed
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MicroDexed is a port of the Dexed sound engine
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(https://github.com/asb2m10/dexed) for the Teensy-3.5/3.6 with audio shield.
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Dexed ist heavily based on https://github.com/google/music-synthesizer-for-android
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(c)2018-2020 H. Wirtz <wirtz@parasitstudio.de>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef CONFIG_H_INCLUDED
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#define CONFIG_H_INCLUDED
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#include <Arduino.h>
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#include "midinotes.h"
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// ATTENTION! For better latency you have to redefine AUDIO_BLOCK_SAMPLES from
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// 128 to 64 in <ARDUINO-IDE-DIR>/cores/teensy3/AudioStream.h
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// If you want to test the system with Linux and without any keyboard and/or audio equipment, you can do the following:
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// 1. In Arduino-IDE enable "Tools->USB-Type->Serial + MIDI + Audio"
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// 2. Build the firmware with "MIDI_DEVICE_USB" enabled in config.h.
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// 3. Afterconnecting to a Linux system there should be a MIDI an audio device available that is called "MicroMDexed", so you can start the following:
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// $ aplaymidi -p 20:0 <MIDI-File> # e.g. test.mid
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// $ vkeybd --addr 20:0
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// $ arecord -f cd -Dhw:1,0 /tmp/<AUDIO_FILE_NAME>.wav
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//
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#define VERSION "0.9.9"
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//*************************************************************************************************
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//* DEVICE SETTINGS
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//*************************************************************************************************
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//*************************************************************************************************
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//* MIDI HARDWARE SETTINGS
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//*************************************************************************************************
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#define MIDI_DEVICE_DIN Serial1
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#define MIDI_DEVICE_USB 1
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#define MIDI_DEVICE_USB_HOST 1
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//*************************************************************************************************
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//* AUDIO HARDWARE SETTINGS
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//*************************************************************************************************
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// If nothing is defined Teensy internal DAC is used as audio output device!
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// Left and right channel audio signal is presented on pins A21 and A22.
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#define TEENSY_AUDIO_BOARD
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#define AUDIO_DEVICE_USB
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#define SGTL5000_HEADPHONE_VOLUME 0.8
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//#define TEENSY_DAC
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//#define TEENSY_DAC_SYMMETRIC
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//#define I2S_AUDIO_ONLY
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//#define TGA_AUDIO_BOARD
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//#define PT8211_AUDIO
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//*************************************************************************************************
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//* MIDI SOFTWARE SETTINGS
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//*************************************************************************************************
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#define DEFAULT_MIDI_CHANNEL MIDI_CHANNEL_OMNI
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#define SYSEXBANK_DEFAULT 0
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#define SYSEXSOUND_DEFAULT 0
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//*************************************************************************************************
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//* DEBUG OUTPUT SETTINGS
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//*************************************************************************************************
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#define DEBUG 1
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#define SERIAL_SPEED 230400
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#define SHOW_XRUN 1
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#define SHOW_CPU_LOAD_MSEC 5000
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//*************************************************************************************************
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//* DEXED AND EFECTS SETTINGS
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//*************************************************************************************************
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#define DEXED_ENGINE DEXED_ENGINE_MODERN // DEXED_ENGINE_MARKI // DEXED_ENGINE_OPL
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// CHORUS parameters
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#define MOD_DELAY_SAMPLE_BUFFER int32_t(TIME_MS2SAMPLES(20.0)) // 20.0 ms delay buffer.
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#define MOD_WAVEFORM WAVEFORM_TRIANGLE // WAVEFORM_SINE WAVEFORM_TRIANGLE WAVEFORM_SAWTOOTH WAVEFORM_SAWTOOTH_REVERSE
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#define MOD_FILTER_OUTPUT MOD_NO_FILTER_OUTPUT // MOD_LINKWITZ_RILEY_FILTER_OUTPUT MOD_BUTTERWORTH_FILTER_OUTPUT MOD_NO_FILTER_OUTPUT
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#define MOD_FILTER_CUTOFF_HZ 3000
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// FX-CHAIN ENABLE/DISABLE
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#define USE_FX 1
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//*************************************************************************************************
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//* AUDIO SOFTWARE SETTINGS
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//*************************************************************************************************
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#ifndef TEENSY_AUDIO_BOARD
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#define REDUCE_LOUDNESS 0
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#if AUDIO_BLOCK_SAMPLES == 64
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#define AUDIO_MEM 512
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#else
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#define AUDIO_MEM 384
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#endif
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#define REDUCE_LOUDNESS 0
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#else // IF TEENSY_AUDIO_BOARD
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/*
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13: 3.16 Volts p-p
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14: 2.98 Volts p-p
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15: 2.83 Volts p-p
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16: 2.67 Volts p-p
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17: 2.53 Volts p-p
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18: 2.39 Volts p-p
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19: 2.26 Volts p-p
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20: 2.14 Volts p-p
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21: 2.02 Volts p-p
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22: 1.91 Volts p-p
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23: 1.80 Volts p-p
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24: 1.71 Volts p-p
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25: 1.62 Volts p-p
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26: 1.53 Volts p-p
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27: 1.44 Volts p-p
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28: 1.37 Volts p-p
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29: 1.29 Volts p-p (default)
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30: 1.22 Volts p-p
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31: 1.16 Volts p-p
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*/
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#define SGTL5000_LINEOUT_LEVEL 16
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#if AUDIO_BLOCK_SAMPLES == 64
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#define AUDIO_MEM 512
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#else
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#define AUDIO_MEM 384
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#endif
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#endif
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#define DELAY_MAX_TIME 500
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#define SAMPLE_RATE 44100
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//*************************************************************************************************
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//* UI
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//*************************************************************************************************
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#define ENABLE_LCD_UI 1
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#define STANDARD_LCD_I2C
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//#define OLED_SPI
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// LCD Display
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//I2C_DISPLAY only
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#ifdef STANDARD_LCD_I2C
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#define LCD_I2C_ADDRESS 0x27
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//#define LCD_I2C_ADDRESS 0x3f
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//Display size, must be set for U8X8 as well
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#define LCD_cols 16
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#define LCD_rows 2
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#define I2C_DISPLAY
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// [I2C] SCL: Pin 19, SDA: Pin 18 (https://www.pjrc.com/teensy/td_libs_Wire.html)
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//#define LCD_GFX 1
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#endif
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#ifdef OLED_SPI
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#define LCD_cols 16
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#define LCD_rows 4
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//enable U8X8 support
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#define U8X8_DISPLAY
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//enable SPI CS switching
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#define DISPLAY_LCD_SPI
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#define U8X8_DISPLAY_CLASS U8X8_SSD1322_NHD_256X64_4W_HW_SPI
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//#define U8X8_DISPLAY_CLASS U8X8_SSD1306_128X64_NONAME_HW_I2C
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#define U8X8_CS_PIN 9
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#define U8X8_DC_PIN 15
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#define U8X8_RESET_PIN 14
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#endif
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#define VOICE_SELECTION_MS 60000
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#define BACK_FROM_VOLUME_MS 2000
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//*************************************************************************************************
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//* HARDWARE SETTINGS
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//*************************************************************************************************
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// Teensy Audio Shield
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#define SDCARD_AUDIO_CS_PIN 10
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#define SDCARD_AUDIO_MOSI_PIN 7
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#define SDCARD_AUDIO_SCK_PIN 14
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#ifndef TEENSY4
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// Teensy 3.5 & 3.6 SD card
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#define SDCARD_TEENSY_CS_PIN BUILTIN_SDCARD
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#define SDCARD_TEENSY_MOSI_PIN 11
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#define SDCARD_TEENSY_SCK_PIN 13
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#else
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#define SDCARD_TEENSY_CS_PIN 10
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#define SDCARD_TEENSY_MOSI_PIN 11
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#define SDCARD_TEENSY_SCK_PIN 13
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#endif
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// Encoder with button
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//#define ENCODER_USE_INTERRUPTS
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#define NUM_ENCODER 2
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#define ENC_L_PIN_A 3
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#define ENC_L_PIN_B 2
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#define BUT_L_PIN 4
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#ifndef TEENSY4
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#define ENC_R_PIN_A 28
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#define ENC_R_PIN_B 29
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#define BUT_R_PIN 30
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#else
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#define ENC_R_PIN_A 6
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#define ENC_R_PIN_B 5
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#define BUT_R_PIN 8
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#endif
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#define BUT_DEBOUNCE_MS 20
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#define LONG_BUTTON_PRESS 500
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// Internal timer
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#define AUTOSTORE_MS 5000
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// EEPROM address
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#define EEPROM_START_ADDRESS 0xFF
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#define MAX_BANKS 100
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#define MAX_VOICES 32 // voices per bank
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#define BANK_NAME_LEN 13 // FAT12 filenames (plus '\0')
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#define VOICE_NAME_LEN 11 // 10 (plus '\0')
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#define FILENAME_LEN BANK_NAME_LEN + VOICE_NAME_LEN
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#define VOICE_CONFIG_NAME "VCFG"
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//*************************************************************************************************
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//* DO NO CHANGE ANYTHING BEYOND IF YOU DON'T KNOW WHAT YOU ARE DOING !!!
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//*************************************************************************************************
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#define NUM_DEXED 1
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#define MAX_DEXED 2
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//#define CPU_OVERLOAD_THROTTLE 95.0 // Level (in percent) when throttling should start
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#define CPU_OVERLOAD_THROTTLE_TIMER 100 // timer (in ms) when next throttling is possible
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enum { DEXED, CHORUS, DELAY, REVERB};
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#define CONTROL_RATE_MS 100
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// MIDI
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#ifdef MIDI_DEVICE_USB
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#define USBCON 1
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#endif
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#if defined(__IMXRT1062__) //Teensy-4.0
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#undef MIDI_DEVICE_USB
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#define MAX_NOTES 16
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#define TEENSY4
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#endif
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#if defined(__MK66FX1M0__) // Teensy-3.6
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// Teensy-3.6 settings
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#define MIDI_DEVICE_USB_HOST 1
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#if defined(USE_FX)
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#define MAX_NOTES 12
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#else
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#define MAX_NOTES 16
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#endif
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#define TEENSY3_6
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#endif
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#if defined (__MK64FX512__)
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// Teensy-3.5 settings
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#undef MIDI_DEVICE_USB_HOST
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#define MAX_NOTES 11
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#undef USE_FX
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#define TEENSY3_5
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#endif
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#define TRANSPOSE_FIX 24
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//#define VOICE_SILENCE_LEVEL 1069
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#define VOICE_SILENCE_LEVEL 4000
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// Audio
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#ifdef TGA_AUDIO_BOARD
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#define REDUCE_LOUDNESS 0
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#endif
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// Some optimizations
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#define USE_TEENSY_DSP 1
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// HELPER MACROS
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#define TIME_MS2SAMPLES(x) floor(uint32_t(x) * AUDIO_SAMPLE_RATE / 1000)
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#define SAMPLES2TIME_MS(x) float(uint32_t(x) * 1000 / AUDIO_SAMPLE_RATE)
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// Modulated delay options
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#define MOD_NO_FILTER_OUTPUT 0
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#define MOD_BUTTERWORTH_FILTER_OUTPUT 1
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#define MOD_LINKWITZ_RILEY_FILTER_OUTPUT 2
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#if defined(TEENSY_DAC_SYMMETRIC)
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#define MONO_MIN 1
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#define MONO_MAX 1
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#define MONO_DEFAULT 1
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#else
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#define MONO_MIN 0
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#define MONO_MAX 3
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#define MONO_DEFAULT 0
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#endif
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#define MIDI_CONTROLLER_MODE_MAX 2
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#define VOLUME_MIN 0
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#define VOLUME_MAX 100
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#define VOLUME_DEFAULT 80
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//#define VOLUME_ENC_STEPS 5
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#define PANORAMA_MIN 0
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#define PANORAMA_MAX 40
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#define PANORAMA_DEFAULT 20
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#define MIDI_CHANNEL_MIN MIDI_CHANNEL_OMNI
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#define MIDI_CHANNEL_MAX 16
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#define MIDI_CHANNEL_DEFAULT MIDI_CHANNEL_OMNI
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#define INSTANCE_LOWEST_NOTE_MIN 21
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#define INSTANCE_LOWEST_NOTE_MAX 108
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#define INSTANCE_LOWEST_NOTE_DEFAULT 21
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#define INSTANCE_HIGHEST_NOTE_MIN 21
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#define INSTANCE_HIGHEST_NOTE_MAX 108
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#define INSTANCE_HIGHEST_NOTE_DEFAULT 108
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#define REVERB_ROOMSIZE_MIN 0
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#define REVERB_ROOMSIZE_MAX 100
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#define REVERB_ROOMSIZE_DEFAULT 0
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#define REVERB_DAMPING_MIN 0
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#define REVERB_DAMPING_MAX 100
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#define REVERB_DAMPING_DEFAULT 0
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#define REVERB_SEND_MIN 0
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#define REVERB_SEND_MAX 100
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#define REVERB_SEND_DEFAULT 0
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#define REVERB_LEVEL_MIN 0
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#define REVERB_LEVEL_MAX 100
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#define REVERB_LEVEL_DEFAULT 0
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#define CHORUS_FREQUENCY_MIN 0
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#define CHORUS_FREQUENCY_MAX 100
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#define CHORUS_FREQUENCY_DEFAULT 0
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#define CHORUS_WAVEFORM_MIN 0
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#define CHORUS_WAVEFORM_MAX 1
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#define CHORUS_WAVEFORM_DEFAULT 0
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#define CHORUS_DEPTH_MIN 0
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#define CHORUS_DEPTH_MAX 100
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#define CHORUS_DEPTH_DEFAULT 0
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#define CHORUS_SEND_MIN 0
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#define CHORUS_SEND_MAX 100
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#define CHORUS_SEND_DEFAULT 0
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#define CHORUS_LEVEL_MIN 0
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#define CHORUS_LEVEL_MAX 100
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#define CHORUS_LEVEL_DEFAULT 0
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#define DELAY_TIME_MIN 0
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#define DELAY_TIME_MAX DELAY_MAX_TIME/10
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#define DELAY_TIME_DEFAULT 0
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#define DELAY_FEEDBACK_MIN 0
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#define DELAY_FEEDBACK_MAX 100
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#define DELAY_FEEDBACK_DEFAULT 0
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#define DELAY_SEND_MIN 0
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#define DELAY_SEND_MAX 100
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#define DELAY_SEND_DEFAULT 0
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#define DELAY_LEVEL_MIN 0
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#define DELAY_LEVEL_MAX 100
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#define DELAY_LEVEL_DEFAULT 0
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#define FILTER_CUTOFF_MIN 0
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#define FILTER_CUTOFF_MAX 100
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#define FILTER_CUTOFF_DEFAULT 0
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#define FILTER_RESONANCE_MIN 0
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#define FILTER_RESONANCE_MAX 100
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#define FILTER_RESONANCE_DEFAULT 0
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#define TRANSPOSE_MIN 0
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#define TRANSPOSE_MAX 48
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#define TRANSPOSE_DEFAULT 12
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#define TUNE_MIN 1
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#define TUNE_MAX 199
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#define TUNE_DEFAULT 100
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#define SOUND_INTENSITY_MIN 0
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#define SOUND_INTENSITY_MAX 100
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#define SOUND_INTENSITY_DEFAULT 100
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#define SOUND_INTENSITY_AMP_MAX 1.15
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#define POLYPHONY_MIN 1
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#define POLYPHONY_MAX MAX_NOTES
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#define POLYPHONY_DEFAULT MAX_NOTES
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#define ENGINE_MIN 0
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#define ENGINE_MAX 2
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#define ENGINE_DEFAULT 0
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#define MONOPOLY_MIN 0
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#define MONOPOLY_MAX 1
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#define MONOPOLY_DEFAULT 0
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#define NOTE_REFRESH_MIN 0
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#define NOTE_REFRESH_MAX 1
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#define NOTE_REFRESH_DEFAULT 0
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#define PB_RANGE_MIN 0
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#define PB_RANGE_MAX 12
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#define PB_RANGE_DEFAULT 1
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#define PB_STEP_MIN 0
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#define PB_STEP_MAX 12
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#define PB_STEP_DEFAULT 0
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#define MW_RANGE_MIN 0
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#define MW_RANGE_MAX 99
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#define MW_RANGE_DEFAULT 50
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#define MW_ASSIGN_MIN 0
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#define MW_ASSIGN_MAX 7
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#define MW_ASSIGN_DEFAULT 0 // Bitmapped: 0: Pitch, 1: Amp, 2: Bias
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#define MW_MODE_MIN 0
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#define MW_MODE_MAX MIDI_CONTROLLER_MODE_MAX
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#define MW_MODE_DEFAULT 0
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#define FC_RANGE_MIN 0
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#define FC_RANGE_MAX 99
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#define FC_RANGE_DEFAULT 50
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#define FC_ASSIGN_MIN 0
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#define FC_ASSIGN_MAX 7
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#define FC_ASSIGN_DEFAULT 0 // Bitmapped: 0: Pitch, 1: Amp, 2: Bias
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#define FC_MODE_MIN 0
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#define FC_MODE_MAX MIDI_CONTROLLER_MODE_MAX
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#define FC_MODE_DEFAULT 0
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#define BC_RANGE_MIN 0
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#define BC_RANGE_MAX 99
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#define BC_RANGE_DEFAULT 50
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#define BC_ASSIGN_MIN 0
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#define BC_ASSIGN_MAX 7
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#define BC_ASSIGN_DEFAULT 0 // Bitmapped: 0: Pitch, 1: Amp, 2: Bias
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#define BC_MODE_MIN 0
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#define BC_MODE_MAX MIDI_CONTROLLER_MODE_MAX
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#define BC_MODE_DEFAULT 0
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#define AT_RANGE_MIN 0
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#define AT_RANGE_MAX 99
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#define AT_RANGE_DEFAULT 50
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#define AT_ASSIGN_MIN 0
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#define AT_ASSIGN_MAX 7
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#define AT_ASSIGN_DEFAULT 0 // Bitmapped: 0: Pitch, 1: Amp, 2: Bias
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#define AT_MODE_MIN 0
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#define AT_MODE_MAX MIDI_CONTROLLER_MODE_MAX
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#define AT_MODE_DEFAULT 0
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#define OP_ENABLED_MIN 0
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#define OP_ENABLED_MAX 0x3f
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#define OP_ENABLED_DEFAULT OP_ENABLED_MAX
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#define PORTAMENTO_MODE_MIN 0
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#define PORTAMENTO_MODE_MAX 1
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#define PORTAMENTO_MODE_DEFAULT 0 // 0: Retain, 1: Follow
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#define PORTAMENTO_GLISSANDO_MIN 0
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#define PORTAMENTO_GLISSANDO_MAX 1
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#define PORTAMENTO_GLISSANDO_DEFAULT 0
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#define PORTAMENTO_TIME_MIN 0
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#define PORTAMENTO_TIME_MAX 99
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#define PORTAMENTO_TIME_DEFAULT 0
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#define INSTANCES_MIN 1
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#define INSTANCES_MAX NUM_DEXED
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#define INSTANCES_DEFAULT 1
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#define INSTANCE_NOTE_START_MIN MIDI_AIS0
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#define INSTANCE_NOTE_START_MAX MIDI_B7
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#define INSTANCE_NOTE_START_DEFAULT INSTANCE_NOTE_START_MIN
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#define INSTANCE_NOTE_END_MIN MIDI_AIS0
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#define INSTANCE_NOTE_END_MAX MIDI_B7
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#define INSTANCE_NOTE_END_DEFAULT INSTANCE_NOTE_END_MAX
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#define SOFT_MIDI_THRU_MIN 0
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#define SOFT_MIDI_THRU_MAX 1
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#define SOFT_MIDI_THRU_DEFAULT 1
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#define VELOCITY_LEVEL_MIN 100
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#define VELOCITY_LEVEL_MAX 127
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#define VELOCITY_LEVEL_DEFAULT 100
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//
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typedef struct {
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uint8_t lowest_note;
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uint8_t highest_note;
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uint8_t reverb_send;
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uint8_t chorus_send;
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uint8_t delay_send;
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uint8_t filter_cutoff;
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uint8_t filter_resonance;
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uint8_t transpose;
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uint8_t tune;
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uint8_t sound_intensity;
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uint8_t pan;
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uint8_t polyphony;
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uint8_t velocity_level;
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uint8_t engine;
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uint8_t monopoly;
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uint8_t note_refresh;
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uint8_t pb_range;
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uint8_t pb_step;
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uint8_t mw_range;
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uint8_t mw_assign;
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uint8_t mw_mode;
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uint8_t fc_range;
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uint8_t fc_assign;
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uint8_t fc_mode;
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uint8_t bc_range;
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uint8_t bc_assign;
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uint8_t bc_mode;
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uint8_t at_range;
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uint8_t at_assign;
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uint8_t at_mode;
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uint8_t portamento_mode;
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uint8_t portamento_glissando;
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uint8_t portamento_time;
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uint8_t op_enabled;
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uint8_t midi_channel;
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uint8_t bank;
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uint8_t voice;
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} dexed_t;
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// struct for holding the current configuration
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typedef struct {
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uint32_t checksum;
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uint8_t instances;
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uint8_t vol;
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uint8_t mono;
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uint8_t reverb_roomsize;
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uint8_t reverb_damping;
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uint8_t reverb_level;
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uint8_t chorus_frequency;
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uint8_t chorus_waveform;
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uint8_t chorus_depth;
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uint8_t chorus_level;
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uint8_t delay_time;
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uint8_t delay_feedback;
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uint8_t delay_level;
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uint8_t soft_midi_thru;
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dexed_t dexed[NUM_DEXED];
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char config_name[11];
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} config_t;
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#if !defined(_MAPFLOAT)
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#define _MAPFLOAT
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inline float mapfloat(float val, float in_min, float in_max, float out_min, float out_max)
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{
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return (val - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
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}
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#endif
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#endif // CONFIG_H_INCLUDED
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