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update music functionality

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audio_out
Jack Humbert 7 years ago
parent 8582faab6f
commit 7923376de1
7 changed files with 213 additions and 148 deletions
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1
keyboards/planck/keymaps/audio_out/config.h
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@ -39,6 +39,7 @@
/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
//#define MIDI_TONE_KEYCODE_OCTAVES 2
#define C6_AUDIO
#define B7_AUDIO
#undef BACKLIGHT_PIN

107
quantum/audio/audio.c
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@ -127,7 +127,7 @@ bool playing_note = false;
float note_frequency = 0;
float note_length = 0;
uint8_t note_tempo = TEMPO_DEFAULT;
float note_timbre = TIMBRE_DEFAULT;
float note_timbre[NUMBER_OF_TIMERS] = {TIMBRE_DEFAULT};
uint16_t note_position = 0;
float (* notes_pointer)[][2];
uint16_t notes_count;
@ -149,8 +149,8 @@ static bool audio_initialized = false;
audio_config_t audio_config;
uint16_t envelope_index = 0;
bool glissando = true;
uint16_t envelope_index[NUMBER_OF_TIMERS] = {0};
bool glissando[NUMBER_OF_TIMERS] = {true};
#ifndef STARTUP_SONG
#define STARTUP_SONG SONG(STARTUP_SOUND)
@ -211,7 +211,7 @@ void audio_init()
DISABLE_AUDIO_COUNTER_3_ISR;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
DISABLE_AUDIO_COUNTER_1_ISR;
#endif
@ -223,14 +223,17 @@ void audio_init()
#ifdef C6_AUDIO
TCCR3A = (0 << COM3A1) | (0 << COM3A0) | (1 << WGM31) | (0 << WGM30);
TCCR3B = (1 << WGM33) | (1 << WGM32) | (0 << CS32) | (1 << CS31) | (0 << CS30);
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (440 * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (440 * CPU_PRESCALER)) * note_timbre[TIMER_3_INDEX]);
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
TCCR1A = (0 << COM1A1) | (0 << COM1A0) | (1 << WGM11) | (0 << WGM10);
TCCR1B = (1 << WGM13) | (1 << WGM12) | (0 << CS12) | (1 << CS11) | (0 << CS10);
TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (440 * CPU_PRESCALER));
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (440 * CPU_PRESCALER)) * note_timbre);
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (440 * CPU_PRESCALER)) * note_timbre[TIMER_1_INDEX]);
#endif
audio_initialized = true;
@ -257,7 +260,7 @@ void stop_all_notes()
DISABLE_AUDIO_COUNTER_3_OUTPUT;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
DISABLE_AUDIO_COUNTER_1_ISR;
DISABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
@ -302,12 +305,18 @@ void stop_note(float freq)
if (voice_place >= voices) {
voice_place = 0;
}
if (voices == 1) {
#if defined(C6_AUDIO) && defined(B_AUDIO)
DISABLE_AUDIO_COUNTER_1_ISR;
DISABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
}
if (voices == 0) {
#ifdef C6_AUDIO
DISABLE_AUDIO_COUNTER_3_ISR;
DISABLE_AUDIO_COUNTER_3_OUTPUT;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
DISABLE_AUDIO_COUNTER_1_ISR;
DISABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
@ -347,11 +356,11 @@ ISR(TIMER3_COMPA_vect)
if (playing_note) {
if (voices > 0) {
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
float freq_alt = 0;
if (voices > 1) {
if (polyphony_rate == 0) {
if (glissando) {
if (glissando[TIMER_1_INDEX] && NUMBER_OF_TIMERS == 1) {
if (frequency_alt != 0 && frequency_alt < frequencies[voices - 2] && frequency_alt < frequencies[voices - 2] * pow(2, -440/frequencies[voices - 2]/12/2)) {
frequency_alt = frequency_alt * pow(2, 440/frequency_alt/12/2);
} else if (frequency_alt != 0 && frequency_alt > frequencies[voices - 2] && frequency_alt > frequencies[voices - 2] * pow(2, 440/frequencies[voices - 2]/12/2)) {
@ -374,18 +383,18 @@ ISR(TIMER3_COMPA_vect)
#endif
}
if (envelope_index < 65535) {
envelope_index++;
if (envelope_index[TIMER_1_INDEX] < 65535) {
envelope_index[TIMER_1_INDEX]++;
}
freq_alt = voice_envelope(freq_alt);
freq_alt = voice_envelope(freq_alt,TIMER_1_INDEX);
if (freq_alt < 30.517578125) {
freq_alt = 30.52;
}
TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq_alt * CPU_PRESCALER));
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq_alt * CPU_PRESCALER)) * note_timbre);
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq_alt * CPU_PRESCALER)) * note_timbre[TIMER_1_INDEX]);
}
#endif
@ -408,7 +417,7 @@ ISR(TIMER3_COMPA_vect)
freq = frequencies[voice_place];
#endif
} else {
if (glissando) {
if (glissando[TIMER_3_INDEX] && NUMBER_OF_TIMERS == 1) {
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)) {
@ -431,18 +440,18 @@ ISR(TIMER3_COMPA_vect)
#endif
}
if (envelope_index < 65535) {
envelope_index++;
if (envelope_index[TIMER_3_INDEX] < 65535) {
envelope_index[TIMER_3_INDEX]++;
}
freq = voice_envelope(freq);
freq = voice_envelope(freq, TIMER_3_INDEX);
if (freq < 30.517578125) {
freq = 30.52;
}
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre[TIMER_3_INDEX]);
}
}
@ -458,13 +467,13 @@ ISR(TIMER3_COMPA_vect)
freq = note_frequency;
#endif
if (envelope_index < 65535) {
envelope_index++;
if (envelope_index[TIMER_3_INDEX] < 65535) {
envelope_index[TIMER_3_INDEX]++;
}
freq = voice_envelope(freq);
freq = voice_envelope(freq, TIMER_3_INDEX);
TIMER_3_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
TIMER_3_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre[TIMER_3_INDEX]);
} else {
TIMER_3_PERIOD = 0;
TIMER_3_DUTY_CYCLE = 0;
@ -505,7 +514,7 @@ ISR(TIMER3_COMPA_vect)
}
} else {
note_resting = false;
envelope_index = 0;
envelope_index[TIMER_3_INDEX] = 0;
note_frequency = (*notes_pointer)[current_note][0];
note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
}
@ -521,10 +530,16 @@ ISR(TIMER3_COMPA_vect)
}
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
#ifdef B5_AUDIO
ISR(TIMER1_COMPA_vect)
#elif defined(B6_AUDIO)
ISR(TIMER1_COMPB_vect)
#elif defined(B7_AUDIO)
ISR(TIMER1_COMPC_vect)
#endif
{
#if (defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)) && !defined(C6_AUDIO)
#if defined(B_AUDIO) && !defined(C6_AUDIO)
float freq = 0;
if (playing_note) {
@ -548,7 +563,7 @@ ISR(TIMER1_COMPA_vect)
freq = frequencies[voice_place];
#endif
} else {
if (glissando) {
if (glissando[TIMER_1_INDEX] && NUMBER_OF_TIMERS == 1) {
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)) {
@ -571,18 +586,18 @@ ISR(TIMER1_COMPA_vect)
#endif
}
if (envelope_index < 65535) {
envelope_index++;
if (envelope_index[TIMER_1_INDEX] < 65535) {
envelope_index[TIMER_1_INDEX]++;
}
freq = voice_envelope(freq);
freq = voice_envelope(freq, TIMER_1_INDEX);
if (freq < 30.517578125) {
freq = 30.52;
}
TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre[TIMER_1_INDEX]);
}
}
@ -598,13 +613,13 @@ ISR(TIMER1_COMPA_vect)
freq = note_frequency;
#endif
if (envelope_index < 65535) {
envelope_index++;
if (envelope_index[TIMER_1_INDEX] < 65535) {
envelope_index[TIMER_1_INDEX]++;
}
freq = voice_envelope(freq);
freq = voice_envelope(freq, TIMER_1_INDEX);
TIMER_1_PERIOD = (uint16_t)(((float)F_CPU) / (freq * CPU_PRESCALER));
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre);
TIMER_1_DUTY_CYCLE = (uint16_t)((((float)F_CPU) / (freq * CPU_PRESCALER)) * note_timbre[TIMER_1_INDEX]);
} else {
TIMER_1_PERIOD = 0;
TIMER_1_DUTY_CYCLE = 0;
@ -645,7 +660,7 @@ ISR(TIMER1_COMPA_vect)
}
} else {
note_resting = false;
envelope_index = 0;
envelope_index[TIMER_1_INDEX] = 0;
note_frequency = (*notes_pointer)[current_note][0];
note_length = ((*notes_pointer)[current_note][1] / 4) * (((float)note_tempo) / 100);
}
@ -674,7 +689,7 @@ void play_note(float freq, int vol) {
#ifdef C6_AUDIO
DISABLE_AUDIO_COUNTER_3_ISR;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
DISABLE_AUDIO_COUNTER_1_ISR;
#endif
@ -684,7 +699,6 @@ void play_note(float freq, int vol) {
playing_note = true;
envelope_index = 0;
if (freq > 0) {
frequencies[voices] = freq;
@ -696,16 +710,23 @@ void play_note(float freq, int vol) {
ENABLE_AUDIO_COUNTER_3_ISR;
ENABLE_AUDIO_COUNTER_3_OUTPUT;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
#ifdef C6_AUDIO
if (voices > 1) {
envelope_index[TIMER_3_INDEX] = 0;
ENABLE_AUDIO_COUNTER_1_ISR;
ENABLE_AUDIO_COUNTER_1_OUTPUT;
} else {
envelope_index[TIMER_3_INDEX] = 0;
}
#else
envelope_index[TIMER_1_INDEX] = 0;
ENABLE_AUDIO_COUNTER_1_ISR;
ENABLE_AUDIO_COUNTER_1_OUTPUT;
#endif
#else
envelope_index[TIMER_3_INDEX] = 0;
#endif
}
@ -723,7 +744,7 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat)
#ifdef C6_AUDIO
DISABLE_AUDIO_COUNTER_3_ISR;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
DISABLE_AUDIO_COUNTER_1_ISR;
#endif
@ -749,7 +770,7 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat)
ENABLE_AUDIO_COUNTER_3_ISR;
ENABLE_AUDIO_COUNTER_3_OUTPUT;
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#ifdef B_AUDIO
#ifndef C6_AUDIO
ENABLE_AUDIO_COUNTER_1_ISR;
ENABLE_AUDIO_COUNTER_1_OUTPUT;
@ -847,8 +868,8 @@ void decrease_polyphony_rate(float change) {
// Timbre function
void set_timbre(float timbre) {
note_timbre = timbre;
void set_timbre(float timbre, uint8_t timer_index) {
note_timbre[timer_index] = timbre;
}
// Tempo functions

23
quantum/audio/audio.h
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@ -36,6 +36,27 @@
// Enable vibrato strength/amplitude - slows down ISR too much
// #define VIBRATO_STRENGTH_ENABLE
#ifdef B_AUDIO
#error Please define B5_AUDIO, B6_AUDIO, or B7_AUDIO instead
#endif
#if defined(B5_AUDIO) || defined(B6_AUDIO) || defined(B7_AUDIO)
#define B_AUDIO
#endif
#if defined(C6_AUDIO) && defined (B_AUDIO)
#define NUMBER_OF_TIMERS 2
#elif defined(C6_AUDIO)
#define NUMBER_OF_TIMERS 1
#elif defined(B_AUDIO)
#define NUMBER_OF_TIMERS 1
#else
#define NUMBER_OF_TIMERS 0
#endif
#define TIMER_1_INDEX 0
#define TIMER_3_INDEX 1
typedef union {
uint8_t raw;
struct {
@ -75,7 +96,7 @@ void disable_polyphony(void);
void increase_polyphony_rate(float change);
void decrease_polyphony_rate(float change);
void set_timbre(float timbre);
void set_timbre(float timbre, uint8_t timer_index);
void set_tempo(uint8_t tempo);
void increase_tempo(uint8_t tempo_change);

212
quantum/audio/voices.c
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@ -18,73 +18,91 @@
#include "stdlib.h"
// these are imported from audio.c
extern uint16_t envelope_index;
extern float note_timbre;
extern uint16_t envelope_index[NUMBER_OF_TIMERS];
extern float note_timbre[NUMBER_OF_TIMERS];
extern float polyphony_rate;
extern bool glissando;
extern bool glissando[NUMBER_OF_TIMERS];
voice_type voice = default_voice;
voice_type voice[NUMBER_OF_TIMERS] = {default_voice};
void set_voice(voice_type v) {
voice = v;
void set_all_voices(voice_type v) {
for (uint8_t i = 0; i < NUMBER_OF_TIMERS; i++) {
voice[i] = v;
}
}
void all_voices_iterate(void) {
for (uint8_t i = 0; i < NUMBER_OF_TIMERS; i++) {
voice[i] = (voice[i] + 1) % number_of_voices;
}
}
void all_voices_deiterate(void) {
for (uint8_t i = 0; i < NUMBER_OF_TIMERS; i++) {
voice[i] = (voice[i] - 1 + number_of_voices) % number_of_voices;
}
}
void set_voice(voice_type v, uint8_t timer_index) {
voice[timer_index] = v;
}
void voice_iterate() {
voice = (voice + 1) % number_of_voices;
void voice_iterate(uint8_t timer_index) {
voice[timer_index] = (voice[timer_index] + 1) % number_of_voices;
}
void voice_deiterate() {
voice = (voice - 1 + number_of_voices) % number_of_voices;
void voice_deiterate(uint8_t timer_index) {
voice[timer_index] = (voice[timer_index] - 1 + number_of_voices) % number_of_voices;
}
float voice_envelope(float frequency) {
// envelope_index ranges from 0 to 0xFFFF, which is preserved at 880.0 Hz
float voice_envelope(float frequency, uint8_t timer_index) {
// envelope_index[timer_index] ranges from 0 to 0xFFFF, which is preserved at 880.0 Hz
__attribute__ ((unused))
uint16_t compensated_index = (uint16_t)((float)envelope_index * (880.0 / frequency));
uint16_t compensated_index = (uint16_t)((float)envelope_index[timer_index] * (880.0 / frequency));
switch (voice) {
switch (voice[timer_index]) {
case default_voice:
glissando = false;
note_timbre = TIMBRE_50;
glissando[timer_index] = false;
note_timbre[timer_index] = TIMBRE_50;
polyphony_rate = 0;
break;
#ifdef AUDIO_VOICES
case something:
glissando = false;
glissando[timer_index] = false;
polyphony_rate = 0;
switch (compensated_index) {
case 0 ... 9:
note_timbre = TIMBRE_12;
note_timbre[timer_index] = TIMBRE_12;
break;
case 10 ... 19:
note_timbre = TIMBRE_25;
note_timbre[timer_index] = TIMBRE_25;
break;
case 20 ... 200:
note_timbre = .125 + .125;
note_timbre[timer_index] = .125 + .125;
break;
default:
note_timbre = .125;
note_timbre[timer_index] = .125;
break;
}
break;
case drums:
glissando = false;
glissando[timer_index] = false;
polyphony_rate = 0;
// switch (compensated_index) {
// case 0 ... 10:
// note_timbre = 0.5;
// note_timbre[timer_index] = 0.5;
// break;
// case 11 ... 20:
// note_timbre = 0.5 * (21 - compensated_index) / 10;
// note_timbre[timer_index] = 0.5 * (21 - compensated_index) / 10;
// break;
// default:
// note_timbre = 0;
// note_timbre[timer_index] = 0;
// break;
// }
// frequency = (rand() % (int)(frequency * 1.2 - frequency)) + (frequency * 0.8);
@ -95,15 +113,15 @@ float voice_envelope(float frequency) {
// Bass drum: 60 - 100 Hz
frequency = (rand() % (int)(40)) + 60;
switch (envelope_index) {
switch (envelope_index[timer_index]) {
case 0 ... 10:
note_timbre = 0.5;
note_timbre[timer_index] = 0.5;
break;
case 11 ... 20:
note_timbre = 0.5 * (21 - envelope_index) / 10;
note_timbre[timer_index] = 0.5 * (21 - envelope_index[timer_index]) / 10;
break;
default:
note_timbre = 0;
note_timbre[timer_index] = 0;
break;
}
@ -112,15 +130,15 @@ float voice_envelope(float frequency) {
// Snare drum: 1 - 2 KHz
frequency = (rand() % (int)(1000)) + 1000;
switch (envelope_index) {
switch (envelope_index[timer_index]) {
case 0 ... 5:
note_timbre = 0.5;
note_timbre[timer_index] = 0.5;
break;
case 6 ... 20:
note_timbre = 0.5 * (21 - envelope_index) / 15;
note_timbre[timer_index] = 0.5 * (21 - envelope_index[timer_index]) / 15;
break;
default:
note_timbre = 0;
note_timbre[timer_index] = 0;
break;
}
@ -128,15 +146,15 @@ float voice_envelope(float frequency) {
// Closed Hi-hat: 3 - 5 KHz
frequency = (rand() % (int)(2000)) + 3000;
switch (envelope_index) {
switch (envelope_index[timer_index]) {
case 0 ... 15:
note_timbre = 0.5;
note_timbre[timer_index] = 0.5;
break;
case 16 ... 20:
note_timbre = 0.5 * (21 - envelope_index) / 5;
note_timbre[timer_index] = 0.5 * (21 - envelope_index[timer_index]) / 5;
break;
default:
note_timbre = 0;
note_timbre[timer_index] = 0;
break;
}
@ -144,96 +162,96 @@ float voice_envelope(float frequency) {
// Open Hi-hat: 3 - 5 KHz
frequency = (rand() % (int)(2000)) + 3000;
switch (envelope_index) {
switch (envelope_index[timer_index]) {
case 0 ... 35:
note_timbre = 0.5;
note_timbre[timer_index] = 0.5;
break;
case 36 ... 50:
note_timbre = 0.5 * (51 - envelope_index) / 15;
note_timbre[timer_index] = 0.5 * (51 - envelope_index[timer_index]) / 15;
break;
default:
note_timbre = 0;
note_timbre[timer_index] = 0;
break;
}
}
break;
case butts_fader:
glissando = true;
glissando[timer_index] = true;
polyphony_rate = 0;
switch (compensated_index) {
case 0 ... 9:
frequency = frequency / 4;
note_timbre = TIMBRE_12;
note_timbre[timer_index] = TIMBRE_12;
break;
case 10 ... 19:
frequency = frequency / 2;
note_timbre = TIMBRE_12;
note_timbre[timer_index] = TIMBRE_12;
break;
case 20 ... 200:
note_timbre = .125 - pow(((float)compensated_index - 20) / (200 - 20), 2)*.125;
note_timbre[timer_index] = .125 - pow(((float)compensated_index - 20) / (200 - 20), 2)*.125;
break;
default:
note_timbre = 0;
note_timbre[timer_index] = 0;
break;
}
break;
// case octave_crunch:
// polyphony_rate = 0;
// switch (compensated_index) {
// case 0 ... 9:
// case 20 ... 24:
// case 30 ... 32:
// frequency = frequency / 2;
// note_timbre = TIMBRE_12;
// break;
// case 10 ... 19:
// case 25 ... 29:
// case 33 ... 35:
// frequency = frequency * 2;
// note_timbre = TIMBRE_12;
// break;
case octave_crunch:
polyphony_rate = 0;
switch (compensated_index) {
case 0 ... 9:
case 20 ... 24:
case 30 ... 32:
frequency = frequency / 2;
note_timbre[timer_index] = TIMBRE_12;
break;
// default:
// note_timbre = TIMBRE_12;
// break;
// }
// break;
case 10 ... 19:
case 25 ... 29:
case 33 ... 35:
frequency = frequency * 2;
note_timbre[timer_index] = TIMBRE_12;
break;
default:
note_timbre[timer_index] = TIMBRE_12;
break;
}
break;
case duty_osc:
// This slows the loop down a substantial amount, so higher notes may freeze
glissando = true;
glissando[timer_index] = true;
polyphony_rate = 0;
switch (compensated_index) {
default:
#define OCS_SPEED 10
#define OCS_AMP .25
// sine wave is slow
// note_timbre = (sin((float)compensated_index/10000*OCS_SPEED) * OCS_AMP / 2) + .5;
// note_timbre[timer_index] = (sin((float)compensated_index/10000*OCS_SPEED) * OCS_AMP / 2) + .5;
// triangle wave is a bit faster
note_timbre = (float)abs((compensated_index*OCS_SPEED % 3000) - 1500) * ( OCS_AMP / 1500 ) + (1 - OCS_AMP) / 2;
note_timbre[timer_index] = (float)abs((compensated_index*OCS_SPEED % 3000) - 1500) * ( OCS_AMP / 1500 ) + (1 - OCS_AMP) / 2;
break;
}
break;
case duty_octave_down:
glissando = true;
glissando[timer_index] = true;
polyphony_rate = 0;
note_timbre = (envelope_index % 2) * .125 + .375 * 2;
if ((envelope_index % 4) == 0)
note_timbre = 0.5;
if ((envelope_index % 8) == 0)
note_timbre = 0;
note_timbre[timer_index] = (envelope_index[timer_index] % 2) * .125 + .375 * 2;
if ((envelope_index[timer_index] % 4) == 0)
note_timbre[timer_index] = 0.5;
if ((envelope_index[timer_index] % 8) == 0)
note_timbre[timer_index] = 0;
break;
case delayed_vibrato:
glissando = true;
glissando[timer_index] = true;
polyphony_rate = 0;
note_timbre = TIMBRE_50;
note_timbre[timer_index] = TIMBRE_50;
#define VOICE_VIBRATO_DELAY 150
#define VOICE_VIBRATO_SPEED 50
switch (compensated_index) {
@ -246,10 +264,10 @@ float voice_envelope(float frequency) {
break;
// case delayed_vibrato_octave:
// polyphony_rate = 0;
// if ((envelope_index % 2) == 1) {
// note_timbre = 0.55;
// if ((envelope_index[timer_index] % 2) == 1) {
// note_timbre[timer_index] = 0.55;
// } else {
// note_timbre = 0.45;
// note_timbre[timer_index] = 0.45;
// }
// #define VOICE_VIBRATO_DELAY 150
// #define VOICE_VIBRATO_SPEED 50
@ -262,28 +280,28 @@ float voice_envelope(float frequency) {
// }
// break;
// case duty_fifth_down:
// note_timbre = 0.5;
// if ((envelope_index % 3) == 0)
// note_timbre = 0.75;
// note_timbre[timer_index] = 0.5;
// if ((envelope_index[timer_index] % 3) == 0)
// note_timbre[timer_index] = 0.75;
// break;
// case duty_fourth_down:
// note_timbre = 0.0;
// if ((envelope_index % 12) == 0)
// note_timbre = 0.75;
// if (((envelope_index % 12) % 4) != 1)
// note_timbre = 0.75;
// note_timbre[timer_index] = 0.0;
// if ((envelope_index[timer_index] % 12) == 0)
// note_timbre[timer_index] = 0.75;
// if (((envelope_index[timer_index] % 12) % 4) != 1)
// note_timbre[timer_index] = 0.75;
// break;
// case duty_third_down:
// note_timbre = 0.5;
// if ((envelope_index % 5) == 0)
// note_timbre = 0.75;
// note_timbre[timer_index] = 0.5;
// if ((envelope_index[timer_index] % 5) == 0)
// note_timbre[timer_index] = 0.75;
// break;
// case duty_fifth_third_down:
// note_timbre = 0.5;
// if ((envelope_index % 5) == 0)
// note_timbre = 0.75;
// if ((envelope_index % 3) == 0)
// note_timbre = 0.25;
// note_timbre[timer_index] = 0.5;
// if ((envelope_index[timer_index] % 5) == 0)
// note_timbre[timer_index] = 0.75;
// if ((envelope_index[timer_index] % 3) == 0)
// note_timbre[timer_index] = 0.25;
// break;
#endif

12
quantum/audio/voices.h
Unescape View File

@ -24,7 +24,7 @@
#ifndef VOICES_H
#define VOICES_H
float voice_envelope(float frequency);
float voice_envelope(float frequency, uint8_t timer_index);
typedef enum {
default_voice,
@ -45,8 +45,12 @@ typedef enum {
number_of_voices // important that this is last
} voice_type;
void set_voice(voice_type v);
void voice_iterate(void);
void voice_deiterate(void);
void set_all_voices(voice_type v);
void all_voices_iterate(void);
void all_voices_deiterate(void);
void set_voice(voice_type v, uint8_t timer_index);
void voice_iterate(uint8_t timer_index);
void voice_deiterate(uint8_t timer_index);
#endif

4
quantum/process_keycode/process_audio.c
Unescape View File

@ -38,13 +38,13 @@ bool process_audio(uint16_t keycode, keyrecord_t *record) {
}
if (keycode == MUV_IN && record->event.pressed) {
voice_iterate();
all_voices_iterate();
PLAY_SONG(voice_change_song);
return false;
}
if (keycode == MUV_DE && record->event.pressed) {
voice_deiterate();
all_voices_deiterate();
PLAY_SONG(voice_change_song);
return false;
}

2
quantum/process_keycode/process_music.c
Unescape View File

@ -28,7 +28,7 @@ bool music_activated = false;
bool midi_activated = false;
uint8_t music_starting_note = 0x0C;
int music_offset = 7;
uint8_t music_mode = MUSIC_MODE_CHROMATIC;
uint8_t music_mode = MUSIC_MODE_MAJOR;
// music sequencer
static bool music_sequence_recording = false;

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