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-rw-r--r--quantum/audio/audio.c (renamed from quantum/audio.c)457
-rw-r--r--quantum/audio/audio.h (renamed from quantum/audio.h)53
-rw-r--r--quantum/audio/frequency_lut.h357
-rw-r--r--quantum/audio/musical_notes.h (renamed from quantum/musical_notes.h)0
-rw-r--r--quantum/audio/song_list.h (renamed from quantum/song_list.h)16
-rw-r--r--quantum/audio/vibrato_lut.h28
-rw-r--r--quantum/audio/voices.c163
-rw-r--r--quantum/audio/voices.h32
-rw-r--r--quantum/audio/wave.h (renamed from quantum/wave.h)0
-rw-r--r--quantum/keymap_common.c3
-rw-r--r--quantum/keymap_common.h6
-rw-r--r--quantum/keymap_extras/keymap_german_osx.h4
-rw-r--r--quantum/keymap_extras/keymap_plover.h32
-rw-r--r--quantum/quantum.mk3
-rw-r--r--quantum/rgblight.c26
-rw-r--r--quantum/rgblight.h4
-rw-r--r--quantum/template/Makefile46
-rw-r--r--quantum/template/template.c61
-rw-r--r--quantum/template/template.h5
19 files changed, 1083 insertions, 213 deletions
diff --git a/quantum/audio.c b/quantum/audio/audio.c
index 627e3d80a1..e85370d958 100644
--- a/quantum/audio.c
+++ b/quantum/audio/audio.c
@@ -10,17 +10,23 @@
#include "eeconfig.h"
+#ifdef VIBRATO_ENABLE
+ #include "vibrato_lut.h"
+#endif
+
#define PI 3.14159265
#define CPU_PRESCALER 8
-// #define PWM_AUDIO
-
#ifdef PWM_AUDIO
#include "wave.h"
#define SAMPLE_DIVIDER 39
#define SAMPLE_RATE (2000000.0/SAMPLE_DIVIDER/2048)
// Resistor value of 1/ (2 * PI * 10nF * (2000000 hertz / SAMPLE_DIVIDER / 10)) for 10nF cap
+
+ float places[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+ uint16_t place_int = 0;
+ bool repeat = true;
#endif
void delay_us(int count) {
@@ -31,27 +37,21 @@ void delay_us(int count) {
int voices = 0;
int voice_place = 0;
-double frequency = 0;
+float frequency = 0;
int volume = 0;
long position = 0;
-int duty_place = 1;
-int duty_counter = 0;
-double frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
+float frequencies[8] = {0, 0, 0, 0, 0, 0, 0, 0};
int volumes[8] = {0, 0, 0, 0, 0, 0, 0, 0};
bool sliding = false;
int max = 0xFF;
float sum = 0;
-int value = 128;
float place = 0;
-float places[8] = {0, 0, 0, 0, 0, 0, 0, 0};
-uint16_t place_int = 0;
-bool repeat = true;
uint8_t * sample;
uint16_t sample_length = 0;
-
+// float freq = 0;
bool notes = false;
bool note = false;
@@ -61,7 +61,7 @@ float note_tempo = TEMPO_DEFAULT;
float note_timbre = TIMBRE_DEFAULT;
uint16_t note_position = 0;
float (* notes_pointer)[][2];
-uint8_t notes_count;
+uint16_t notes_count;
bool notes_repeat;
float notes_rest;
bool note_resting = false;
@@ -69,26 +69,157 @@ bool note_resting = false;
uint8_t current_note = 0;
uint8_t rest_counter = 0;
+#ifdef VIBRATO_ENABLE
+float vibrato_counter = 0;
+float vibrato_strength = .5;
+float vibrato_rate = 0.125;
+#endif
+
+float polyphony_rate = 0;
+
+bool inited = false;
+
audio_config_t audio_config;
+uint16_t envelope_index = 0;
void audio_toggle(void) {
audio_config.enable ^= 1;
- eeconfig_write_audio(audio_config.raw);
+ eeconfig_update_audio(audio_config.raw);
}
void audio_on(void) {
audio_config.enable = 1;
- eeconfig_write_audio(audio_config.raw);
+ eeconfig_update_audio(audio_config.raw);
}
void audio_off(void) {
audio_config.enable = 0;
- eeconfig_write_audio(audio_config.raw);
+ eeconfig_update_audio(audio_config.raw);
+}
+
+#ifdef VIBRATO_ENABLE
+// Vibrato rate functions
+
+void set_vibrato_rate(float rate) {
+ vibrato_rate = rate;
}
+void increase_vibrato_rate(float change) {
+ vibrato_rate *= change;
+}
+
+void decrease_vibrato_rate(float change) {
+ vibrato_rate /= change;
+}
+
+#ifdef VIBRATO_STRENGTH_ENABLE
+
+void set_vibrato_strength(float strength) {
+ vibrato_strength = strength;
+}
+
+void increase_vibrato_strength(float change) {
+ vibrato_strength *= change;
+}
+
+void decrease_vibrato_strength(float change) {
+ vibrato_strength /= change;
+}
+
+#endif
+
+#endif
+
+// Polyphony functions
+
+void set_polyphony_rate(float rate) {
+ polyphony_rate = rate;
+}
+
+void enable_polyphony() {
+ polyphony_rate = 5;
+}
+
+void disable_polyphony() {
+ polyphony_rate = 0;
+}
+
+void increase_polyphony_rate(float change) {
+ polyphony_rate *= change;
+}
+
+void decrease_polyphony_rate(float change) {
+ polyphony_rate /= change;
+}
+
+// Timbre function
+
+void set_timbre(float timbre) {
+ note_timbre = timbre;
+}
+
+// Tempo functions
+
+void set_tempo(float tempo) {
+ note_tempo = tempo;
+}
+
+void decrease_tempo(uint8_t tempo_change) {
+ note_tempo += (float) tempo_change;
+}
+
+void increase_tempo(uint8_t tempo_change) {
+ if (note_tempo - (float) tempo_change < 10) {
+ note_tempo = 10;
+ } else {
+ note_tempo -= (float) tempo_change;
+ }
+}
+
+void audio_init() {
+
+ /* check signature */
+ if (!eeconfig_is_enabled()) {
+ eeconfig_init();
+ }
+ audio_config.raw = eeconfig_read_audio();
+
+ #ifdef PWM_AUDIO
+ PLLFRQ = _BV(PDIV2);
+ PLLCSR = _BV(PLLE);
+ while(!(PLLCSR & _BV(PLOCK)));
+ PLLFRQ |= _BV(PLLTM0); /* PCK 48MHz */
+
+ /* Init a fast PWM on Timer4 */
+ TCCR4A = _BV(COM4A0) | _BV(PWM4A); /* Clear OC4A on Compare Match */
+ TCCR4B = _BV(CS40); /* No prescaling => f = PCK/256 = 187500Hz */
+ OCR4A = 0;
+
+ /* Enable the OC4A output */
+ DDRC |= _BV(PORTC6);
+
+ TIMSK3 &= ~_BV(OCIE3A); // Turn off 3A interputs
+
+ TCCR3A = 0x0; // Options not needed
+ TCCR3B = _BV(CS31) | _BV(CS30) | _BV(WGM32); // 64th prescaling and CTC
+ OCR3A = SAMPLE_DIVIDER - 1; // Correct count/compare, related to sample playback
+ #else
+ DDRC |= _BV(PORTC6);
+
+ TIMSK3 &= ~_BV(OCIE3A); // Turn off 3A interputs
+
+ TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
+ TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+ #endif
+
+ inited = true;
+}
void stop_all_notes() {
+ if (!inited) {
+ audio_init();
+ }
voices = 0;
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
@@ -107,8 +238,11 @@ void stop_all_notes() {
}
}
-void stop_note(double freq) {
+void stop_note(float freq) {
if (note) {
+ if (!inited) {
+ audio_init();
+ }
#ifdef PWM_AUDIO
freq = freq / SAMPLE_RATE;
#endif
@@ -122,11 +256,15 @@ void stop_note(double freq) {
volumes[j] = volumes[j+1];
volumes[j+1] = 0;
}
+ break;
}
}
voices--;
if (voices < 0)
voices = 0;
+ if (voice_place >= voices) {
+ voice_place = 0;
+ }
if (voices == 0) {
#ifdef PWM_AUDIO
TIMSK3 &= ~_BV(OCIE3A);
@@ -137,66 +275,29 @@ void stop_note(double freq) {
frequency = 0;
volume = 0;
note = false;
- } else {
- double freq = frequencies[voices - 1];
- int vol = volumes[voices - 1];
- double starting_f = frequency;
- if (frequency < freq) {
- sliding = true;
- for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 2000.0)) {
- frequency = f;
- }
- sliding = false;
- } else if (frequency > freq) {
- sliding = true;
- for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 2000.0)) {
- frequency = f;
- }
- sliding = false;
- }
- frequency = freq;
- volume = vol;
}
}
}
-void init_notes() {
-
- /* check signature */
- if (!eeconfig_is_enabled()) {
- eeconfig_init();
- }
- audio_config.raw = eeconfig_read_audio();
-
- #ifdef PWM_AUDIO
- PLLFRQ = _BV(PDIV2);
- PLLCSR = _BV(PLLE);
- while(!(PLLCSR & _BV(PLOCK)));
- PLLFRQ |= _BV(PLLTM0); /* PCK 48MHz */
-
- /* Init a fast PWM on Timer4 */
- TCCR4A = _BV(COM4A0) | _BV(PWM4A); /* Clear OC4A on Compare Match */
- TCCR4B = _BV(CS40); /* No prescaling => f = PCK/256 = 187500Hz */
- OCR4A = 0;
-
- /* Enable the OC4A output */
- DDRC |= _BV(PORTC6);
+#ifdef VIBRATO_ENABLE
- TIMSK3 &= ~_BV(OCIE3A); // Turn off 3A interputs
+float mod(float a, int b)
+{
+ float r = fmod(a, b);
+ return r < 0 ? r + b : r;
+}
- TCCR3A = 0x0; // Options not needed
- TCCR3B = _BV(CS31) | _BV(CS30) | _BV(WGM32); // 64th prescaling and CTC
- OCR3A = SAMPLE_DIVIDER - 1; // Correct count/compare, related to sample playback
+float vibrato(float average_freq) {
+ #ifdef VIBRATO_STRENGTH_ENABLE
+ float vibrated_freq = average_freq * pow(VIBRATO_LUT[(int)vibrato_counter], vibrato_strength);
#else
- DDRC |= _BV(PORTC6);
-
- TIMSK3 &= ~_BV(OCIE3A); // Turn off 3A interputs
-
- TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
- TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
+ float vibrated_freq = average_freq * VIBRATO_LUT[(int)vibrato_counter];
#endif
+ vibrato_counter = mod((vibrato_counter + vibrato_rate * (1.0 + 440.0/average_freq)), VIBRATO_LUT_LENGTH);
+ return vibrated_freq;
}
+#endif
ISR(TIMER3_COMPA_vect) {
if (note) {
@@ -248,23 +349,55 @@ ISR(TIMER3_COMPA_vect) {
OCR4A = sum;
}
#else
- if (frequency > 0) {
- // ICR3 = (int)(((double)F_CPU) / frequency); // Set max to the period
- // OCR3A = (int)(((double)F_CPU) / frequency) >> 1; // Set compare to half the period
- voice_place %= voices;
- if (place > (frequencies[voice_place] / 50)) {
- voice_place = (voice_place + 1) % voices;
- place = 0.0;
+ if (voices > 0) {
+ float freq;
+ if (polyphony_rate > 0) {
+ if (voices > 1) {
+ voice_place %= voices;
+ if (place++ > (frequencies[voice_place] / polyphony_rate / CPU_PRESCALER)) {
+ voice_place = (voice_place + 1) % voices;
+ place = 0.0;
+ }
+ }
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequencies[voice_place]);
+ } else {
+ #else
+ {
+ #endif
+ freq = frequencies[voice_place];
+ }
+ } else {
+ if (frequency != 0 && frequency < frequencies[voices - 1] && frequency < frequencies[voices - 1] * pow(2, -440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, 440/frequency/12/2);
+ } else if (frequency != 0 && frequency > frequencies[voices - 1] && frequency > frequencies[voices - 1] * pow(2, 440/frequencies[voices - 1]/12/2)) {
+ frequency = frequency * pow(2, -440/frequency/12/2);
+ } else {
+ frequency = frequencies[voices - 1];
+ }
+
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(frequency);
+ } else {
+ #else
+ {
+ #endif
+ freq = frequency;
+ }
}
- ICR3 = (int)(((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)); // Set max to the period
- OCR3A = (int)((((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
- //OCR3A = (int)(((double)F_CPU) / (frequencies[voice_place] * CPU_PRESCALER)) >> 1 * duty_place; // Set compare to half the period
- place++;
- // if (duty_counter > (frequencies[voice_place] / 500)) {
- // duty_place = (duty_place % 3) + 1;
- // duty_counter = 0;
- // }
- // duty_counter++;
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ if (freq < 30.517578125)
+ freq = 30.52;
+ ICR3 = (int)(((double)F_CPU) / (freq * CPU_PRESCALER)); // Set max to the period
+ OCR3A = (int)((((double)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
}
#endif
}
@@ -290,8 +423,25 @@ ISR(TIMER3_COMPA_vect) {
place -= SINE_LENGTH;
#else
if (note_frequency > 0) {
- ICR3 = (int)(((double)F_CPU) / (note_frequency * CPU_PRESCALER)); // Set max to the period
- OCR3A = (int)((((double)F_CPU) / (note_frequency * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
+ float freq;
+
+ #ifdef VIBRATO_ENABLE
+ if (vibrato_strength > 0) {
+ freq = vibrato(note_frequency);
+ } else {
+ #else
+ {
+ #endif
+ freq = note_frequency;
+ }
+
+ if (envelope_index < 65535) {
+ envelope_index++;
+ }
+ freq = voice_envelope(freq);
+
+ ICR3 = (int)(((double)F_CPU) / (freq * CPU_PRESCALER)); // Set max to the period
+ OCR3A = (int)((((double)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre); // Set compare to half the period
} else {
ICR3 = 0;
OCR3A = 0;
@@ -332,6 +482,7 @@ ISR(TIMER3_COMPA_vect) {
note_frequency = (*notes_pointer)[current_note][0] / SAMPLE_RATE;
note_length = (*notes_pointer)[current_note][1] * (note_tempo / 100);
#else
+ envelope_index = 0;
note_frequency = (*notes_pointer)[current_note][0];
note_length = ((*notes_pointer)[current_note][1] / 4) * (note_tempo / 100);
#endif
@@ -347,10 +498,46 @@ ISR(TIMER3_COMPA_vect) {
}
}
-void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest) {
+void play_note(float freq, int vol) {
-if (audio_config.enable) {
+ if (!inited) {
+ audio_init();
+ }
+if (audio_config.enable && voices < 8) {
+ TIMSK3 &= ~_BV(OCIE3A);
+ // Cancel notes if notes are playing
+ if (notes)
+ stop_all_notes();
+ note = true;
+ envelope_index = 0;
+ #ifdef PWM_AUDIO
+ freq = freq / SAMPLE_RATE;
+ #endif
+ if (freq > 0) {
+ frequencies[voices] = freq;
+ volumes[voices] = vol;
+ voices++;
+ }
+
+ #ifdef PWM_AUDIO
+ TIMSK3 |= _BV(OCIE3A);
+ #else
+ TIMSK3 |= _BV(OCIE3A);
+ TCCR3A |= _BV(COM3A1);
+ #endif
+}
+
+}
+
+void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest) {
+
+ if (!inited) {
+ audio_init();
+ }
+
+if (audio_config.enable) {
+ TIMSK3 &= ~_BV(OCIE3A);
// Cancel note if a note is playing
if (note)
stop_all_notes();
@@ -379,99 +566,28 @@ if (audio_config.enable) {
TIMSK3 |= _BV(OCIE3A);
TCCR3A |= _BV(COM3A1);
#endif
-
}
}
+#ifdef PWM_AUDIO
void play_sample(uint8_t * s, uint16_t l, bool r) {
+ if (!inited) {
+ audio_init();
+ }
-if (audio_config.enable) {
-
- stop_all_notes();
- place_int = 0;
- sample = s;
- sample_length = l;
- repeat = r;
-
- #ifdef PWM_AUDIO
- TIMSK3 |= _BV(OCIE3A);
- #else
- #endif
-
-}
-
-}
-
-void play_note(double freq, int vol) {
-
-if (audio_config.enable && voices < 8) {
-
- // Cancel notes if notes are playing
- if (notes)
+ if (audio_config.enable) {
+ TIMSK3 &= ~_BV(OCIE3A);
stop_all_notes();
- note = true;
- #ifdef PWM_AUDIO
- freq = freq / SAMPLE_RATE;
- #endif
- if (freq > 0) {
- if (frequency != 0) {
- double starting_f = frequency;
- if (frequency < freq) {
- for (double f = starting_f; f <= freq; f += ((freq - starting_f) / 2000.0)) {
- frequency = f;
- }
- } else if (frequency > freq) {
- for (double f = starting_f; f >= freq; f -= ((starting_f - freq) / 2000.0)) {
- frequency = f;
- }
- }
- }
- frequency = freq;
- volume = vol;
+ place_int = 0;
+ sample = s;
+ sample_length = l;
+ repeat = r;
- frequencies[voices] = frequency;
- volumes[voices] = volume;
- voices++;
- }
-
- #ifdef PWM_AUDIO
TIMSK3 |= _BV(OCIE3A);
- #else
- TIMSK3 |= _BV(OCIE3A);
- TCCR3A |= _BV(COM3A1);
- #endif
-
-}
-
-}
-
-void set_timbre(float timbre)
-{
- note_timbre = timbre;
-}
-
-void set_tempo(float tempo)
-{
- note_tempo = tempo;
-}
-
-void decrease_tempo(uint8_t tempo_change)
-{
- note_tempo += (float) tempo_change;
-}
-
-void increase_tempo(uint8_t tempo_change)
-{
- if (note_tempo - (float) tempo_change < 10)
- {
- note_tempo = 10;
- }
- else
- {
- note_tempo -= (float) tempo_change;
- }
+ }
}
+#endif
//------------------------------------------------------------------------------
// Override these functions in your keymap file to play different tunes on
@@ -481,8 +597,11 @@ void play_startup_tone()
{
}
+
+
__attribute__ ((weak))
void play_goodbye_tone()
{
+
}
//------------------------------------------------------------------------------
diff --git a/quantum/audio.h b/quantum/audio/audio.h
index 44cafccd68..89769507e1 100644
--- a/quantum/audio.h
+++ b/quantum/audio/audio.h
@@ -4,10 +4,19 @@
#include <util/delay.h>
#include "musical_notes.h"
#include "song_list.h"
+#include "voices.h"
#ifndef AUDIO_H
#define AUDIO_H
+// Largely untested PWM audio mode (doesn't sound as good)
+// #define PWM_AUDIO
+
+// #define VIBRATO_ENABLE
+
+// Enable vibrato strength/amplitude - slows down ISR too much
+// #define VIBRATO_STRENGTH_ENABLE
+
typedef union {
uint8_t raw;
struct {
@@ -20,18 +29,48 @@ void audio_toggle(void);
void audio_on(void);
void audio_off(void);
-void play_sample(uint8_t * s, uint16_t l, bool r);
-void play_note(double freq, int vol);
-void stop_note(double freq);
-void stop_all_notes(void);
-void init_notes(void);
-void play_notes(float (*np)[][2], uint8_t n_count, bool n_repeat, float n_rest);
+// Vibrato rate functions
+
+#ifdef VIBRATO_ENABLE
+
+void set_vibrato_rate(float rate);
+void increase_vibrato_rate(float change);
+void decrease_vibrato_rate(float change);
+
+#ifdef VIBRATO_STRENGTH_ENABLE
+
+void set_vibrato_strength(float strength);
+void increase_vibrato_strength(float change);
+void decrease_vibrato_strength(float change);
+
+#endif
+
+#endif
+
+// Polyphony functions
+
+void set_polyphony_rate(float rate);
+void enable_polyphony(void);
+void disable_polyphony(void);
+void increase_polyphony_rate(float change);
+void decrease_polyphony_rate(float change);
void set_timbre(float timbre);
void set_tempo(float tempo);
+
void increase_tempo(uint8_t tempo_change);
void decrease_tempo(uint8_t tempo_change);
+void audio_init(void);
+
+#ifdef PWM_AUDIO
+void play_sample(uint8_t * s, uint16_t l, bool r);
+#endif
+void play_note(float freq, int vol);
+void stop_note(float freq);
+void stop_all_notes(void);
+void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest);
+
#define SCALE (int []){ 0 + (12*0), 2 + (12*0), 4 + (12*0), 5 + (12*0), 7 + (12*0), 9 + (12*0), 11 + (12*0), \
0 + (12*1), 2 + (12*1), 4 + (12*1), 5 + (12*1), 7 + (12*1), 9 + (12*1), 11 + (12*1), \
0 + (12*2), 2 + (12*2), 4 + (12*2), 5 + (12*2), 7 + (12*2), 9 + (12*2), 11 + (12*2), \
@@ -41,7 +80,7 @@ void decrease_tempo(uint8_t tempo_change);
// These macros are used to allow play_notes to play an array of indeterminate
// length. This works around the limitation of C's sizeof operation on pointers.
// The global float array for the song must be used here.
-#define NOTE_ARRAY_SIZE(x) ((int)(sizeof(x) / (sizeof(x[0]))))
+#define NOTE_ARRAY_SIZE(x) ((int16_t)(sizeof(x) / (sizeof(x[0]))))
#define PLAY_NOTE_ARRAY(note_array, note_repeat, note_rest_style) play_notes(&note_array, NOTE_ARRAY_SIZE((note_array)), (note_repeat), (note_rest_style));
void play_goodbye_tone(void);
diff --git a/quantum/audio/frequency_lut.h b/quantum/audio/frequency_lut.h
new file mode 100644
index 0000000000..e62da5be4e
--- /dev/null
+++ b/quantum/audio/frequency_lut.h
@@ -0,0 +1,357 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+
+#define FREQUENCY_LUT_LENGTH 349
+
+const uint16_t FREQUENCY_LUT[FREQUENCY_LUT_LENGTH] = {
+0x8E0B,
+0x8C02,
+0x8A00,
+0x8805,
+0x8612,
+0x8426,
+0x8241,
+0x8063,
+0x7E8C,
+0x7CBB,
+0x7AF2,
+0x792E,
+0x7772,
+0x75BB,
+0x740B,
+0x7261,
+0x70BD,
+0x6F20,
+0x6D88,
+0x6BF6,
+0x6A69,
+0x68E3,
+0x6762,
+0x65E6,
+0x6470,
+0x6300,
+0x6194,
+0x602E,
+0x5ECD,
+0x5D71,
+0x5C1A,
+0x5AC8,
+0x597B,
+0x5833,
+0x56EF,
+0x55B0,
+0x5475,
+0x533F,
+0x520E,
+0x50E1,
+0x4FB8,
+0x4E93,
+0x4D73,
+0x4C57,
+0x4B3E,
+0x4A2A,
+0x491A,
+0x480E,
+0x4705,
+0x4601,
+0x4500,
+0x4402,
+0x4309,
+0x4213,
+0x4120,
+0x4031,
+0x3F46,
+0x3E5D,
+0x3D79,
+0x3C97,
+0x3BB9,
+0x3ADD,
+0x3A05,
+0x3930,
+0x385E,
+0x3790,
+0x36C4,
+0x35FB,
+0x3534,
+0x3471,
+0x33B1,
+0x32F3,
+0x3238,
+0x3180,
+0x30CA,
+0x3017,
+0x2F66,
+0x2EB8,
+0x2E0D,
+0x2D64,
+0x2CBD,
+0x2C19,
+0x2B77,
+0x2AD8,
+0x2A3A,
+0x299F,
+0x2907,
+0x2870,
+0x27DC,
+0x2749,
+0x26B9,
+0x262B,
+0x259F,
+0x2515,
+0x248D,
+0x2407,
+0x2382,
+0x2300,
+0x2280,
+0x2201,
+0x2184,
+0x2109,
+0x2090,
+0x2018,
+0x1FA3,
+0x1F2E,
+0x1EBC,
+0x1E4B,
+0x1DDC,
+0x1D6E,
+0x1D02,
+0x1C98,
+0x1C2F,
+0x1BC8,
+0x1B62,
+0x1AFD,
+0x1A9A,
+0x1A38,
+0x19D8,
+0x1979,
+0x191C,
+0x18C0,
+0x1865,
+0x180B,
+0x17B3,
+0x175C,
+0x1706,
+0x16B2,
+0x165E,
+0x160C,
+0x15BB,
+0x156C,
+0x151D,
+0x14CF,
+0x1483,
+0x1438,
+0x13EE,
+0x13A4,
+0x135C,
+0x1315,
+0x12CF,
+0x128A,
+0x1246,
+0x1203,
+0x11C1,
+0x1180,
+0x1140,
+0x1100,
+0x10C2,
+0x1084,
+0x1048,
+0x100C,
+0xFD1,
+0xF97,
+0xF5E,
+0xF25,
+0xEEE,
+0xEB7,
+0xE81,
+0xE4C,
+0xE17,
+0xDE4,
+0xDB1,
+0xD7E,
+0xD4D,
+0xD1C,
+0xCEC,
+0xCBC,
+0xC8E,
+0xC60,
+0xC32,
+0xC05,
+0xBD9,
+0xBAE,
+0xB83,
+0xB59,
+0xB2F,
+0xB06,
+0xADD,
+0xAB6,
+0xA8E,
+0xA67,
+0xA41,
+0xA1C,
+0x9F7,
+0x9D2,
+0x9AE,
+0x98A,
+0x967,
+0x945,
+0x923,
+0x901,
+0x8E0,
+0x8C0,
+0x8A0,
+0x880,
+0x861,
+0x842,
+0x824,
+0x806,
+0x7E8,
+0x7CB,
+0x7AF,
+0x792,
+0x777,
+0x75B,
+0x740,
+0x726,
+0x70B,
+0x6F2,
+0x6D8,
+0x6BF,
+0x6A6,
+0x68E,
+0x676,
+0x65E,
+0x647,
+0x630,
+0x619,
+0x602,
+0x5EC,
+0x5D7,
+0x5C1,
+0x5AC,
+0x597,
+0x583,
+0x56E,
+0x55B,
+0x547,
+0x533,
+0x520,
+0x50E,
+0x4FB,
+0x4E9,
+0x4D7,
+0x4C5,
+0x4B3,
+0x4A2,
+0x491,
+0x480,
+0x470,
+0x460,
+0x450,
+0x440,
+0x430,
+0x421,
+0x412,
+0x403,
+0x3F4,
+0x3E5,
+0x3D7,
+0x3C9,
+0x3BB,
+0x3AD,
+0x3A0,
+0x393,
+0x385,
+0x379,
+0x36C,
+0x35F,
+0x353,
+0x347,
+0x33B,
+0x32F,
+0x323,
+0x318,
+0x30C,
+0x301,
+0x2F6,
+0x2EB,
+0x2E0,
+0x2D6,
+0x2CB,
+0x2C1,
+0x2B7,
+0x2AD,
+0x2A3,
+0x299,
+0x290,
+0x287,
+0x27D,
+0x274,
+0x26B,
+0x262,
+0x259,
+0x251,
+0x248,
+0x240,
+0x238,
+0x230,
+0x228,
+0x220,
+0x218,
+0x210,
+0x209,
+0x201,
+0x1FA,
+0x1F2,
+0x1EB,
+0x1E4,
+0x1DD,
+0x1D6,
+0x1D0,
+0x1C9,
+0x1C2,
+0x1BC,
+0x1B6,
+0x1AF,
+0x1A9,
+0x1A3,
+0x19D,
+0x197,
+0x191,
+0x18C,
+0x186,
+0x180,
+0x17B,
+0x175,
+0x170,
+0x16B,
+0x165,
+0x160,
+0x15B,
+0x156,
+0x151,
+0x14C,
+0x148,
+0x143,
+0x13E,
+0x13A,
+0x135,
+0x131,
+0x12C,
+0x128,
+0x124,
+0x120,
+0x11C,
+0x118,
+0x114,
+0x110,
+0x10C,
+0x108,
+0x104,
+0x100,
+0xFD,
+0xF9,
+0xF5,
+0xF2,
+0xEE
+}; \ No newline at end of file
diff --git a/quantum/musical_notes.h b/quantum/audio/musical_notes.h
index b08d16a6fa..b08d16a6fa 100644
--- a/quantum/musical_notes.h
+++ b/quantum/audio/musical_notes.h
diff --git a/quantum/song_list.h b/quantum/audio/song_list.h
index e992bd18a2..fc6fcdeef1 100644
--- a/quantum/song_list.h
+++ b/quantum/audio/song_list.h
@@ -64,6 +64,22 @@
S__NOTE(_REST), \
E__NOTE(_E7 ),
+#define PLOVER_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_E7 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_A7 ),
+
+#define PLOVER_GOODBYE_SOUND \
+ E__NOTE(_GS6 ), \
+ E__NOTE(_A6 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_A7 ), \
+ S__NOTE(_REST), \
+ ED_NOTE(_E7 ),
+
#define MUSIC_SCALE_SOUND \
E__NOTE(_A5 ), \
E__NOTE(_B5 ), \
diff --git a/quantum/audio/vibrato_lut.h b/quantum/audio/vibrato_lut.h
new file mode 100644
index 0000000000..a2b1f3e5ce
--- /dev/null
+++ b/quantum/audio/vibrato_lut.h
@@ -0,0 +1,28 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/pgmspace.h>
+
+#define VIBRATO_LUT_LENGTH 20
+
+const float VIBRATO_LUT[VIBRATO_LUT_LENGTH] = { \
+1.00223368114872,
+1.00425299436105,
+1.00585842560279,
+1.00689052852052,
+1.0072464122237,
+1.00689052852052,
+1.00585842560279,
+1.00425299436105,
+1.00223368114872,
+1,
+0.99777129706302,
+0.99576501699778,
+0.994175695650927,
+0.993156625943589,
+0.992805720491269,
+0.993156625943589,
+0.994175695650927,
+0.99576501699778,
+0.99777129706302,
+1
+}; \ No newline at end of file
diff --git a/quantum/audio/voices.c b/quantum/audio/voices.c
new file mode 100644
index 0000000000..d2316ba1b3
--- /dev/null
+++ b/quantum/audio/voices.c
@@ -0,0 +1,163 @@
+#include "voices.h"
+#include "stdlib.h"
+#include "vibrato_lut.h"
+
+// these are imported from audio.c
+extern uint16_t envelope_index;
+extern float note_timbre;
+extern float polyphony_rate;
+
+voice_type voice = default_voice;
+
+void set_voice(voice_type v) {
+ voice = v;
+}
+
+void voice_iterate() {
+ voice = (voice + 1) % number_of_voices;
+}
+
+void voice_deiterate() {
+ voice = (voice - 1) % number_of_voices;
+}
+
+float voice_envelope(float frequency) {
+ // envelope_index ranges from 0 to 0xFFFF, which is preserved at 880.0 Hz
+ uint16_t compensated_index = (uint16_t)((float)envelope_index * (880.0 / frequency));
+
+ switch (voice) {
+ case default_voice:
+ note_timbre = TIMBRE_50;
+ polyphony_rate = 0;
+ break;
+
+ case butts_fader:
+ polyphony_rate = 0;
+ switch (compensated_index) {
+ case 0 ... 9:
+ frequency = frequency / 4;
+ note_timbre = TIMBRE_12;
+ brea