2 #include "process_audio.h"
4 #ifndef VOICE_CHANGE_SONG
5 #define VOICE_CHANGE_SONG SONG(VOICE_CHANGE_SOUND)
7 float voice_change_song[][2] = VOICE_CHANGE_SONG;
9 #ifndef PITCH_STANDARD_A
10 #define PITCH_STANDARD_A 440.0f
14 #ifdef AUDIO_CLICKY_ON
15 bool clicky_enable = true;
17 bool clicky_enable = false;
19 #ifndef AUDIO_CLICKY_FREQ_DEFAULT
20 #define AUDIO_CLICKY_FREQ_DEFAULT 440.0f
22 #ifndef AUDIO_CLICKY_FREQ_MIN
23 #define AUDIO_CLICKY_FREQ_MIN 65.0f
25 #ifndef AUDIO_CLICKY_FREQ_MAX
26 #define AUDIO_CLICKY_FREQ_MAX 1500.0f
28 #ifndef AUDIO_CLICKY_FREQ_FACTOR
29 #define AUDIO_CLICKY_FREQ_FACTOR 1.18921f
31 #ifndef AUDIO_CLICKY_FREQ_RANDOMNESS
32 #define AUDIO_CLICKY_FREQ_RANDOMNESS 0.05f
35 float clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT;
36 float clicky_song[][2] = {{AUDIO_CLICKY_FREQ_DEFAULT, 3}, {AUDIO_CLICKY_FREQ_DEFAULT, 1}}; // 3 and 1 --> durations
39 extern bool music_activated;
40 extern bool midi_activated;
43 void clicky_play(void) {
45 if (music_activated || midi_activated) return;
47 clicky_song[0][0] = 2.0f * clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
48 clicky_song[1][0] = clicky_freq * (1.0f + AUDIO_CLICKY_FREQ_RANDOMNESS * ( ((float)rand()) / ((float)(RAND_MAX)) ) );
49 PLAY_SONG(clicky_song);
53 static float compute_freq_for_midi_note(uint8_t note)
55 // https://en.wikipedia.org/wiki/MIDI_tuning_standard
56 return pow(2.0, (note - 69) / 12.0) * PITCH_STANDARD_A;
59 bool process_audio(uint16_t keycode, keyrecord_t *record) {
61 if (keycode == AU_ON && record->event.pressed) {
66 if (keycode == AU_OFF && record->event.pressed) {
71 if (keycode == AU_TOG && record->event.pressed) {
80 if (keycode == MUV_IN && record->event.pressed) {
82 PLAY_SONG(voice_change_song);
86 if (keycode == MUV_DE && record->event.pressed) {
88 PLAY_SONG(voice_change_song);
93 if (keycode == CLICKY_TOGGLE && record->event.pressed) { clicky_enable = !clicky_enable; }
95 if (keycode == CLICKY_RESET && record->event.pressed) { clicky_freq = AUDIO_CLICKY_FREQ_DEFAULT; }
97 if (keycode == CLICKY_UP && record->event.pressed) {
98 float new_freq = clicky_freq * AUDIO_CLICKY_FREQ_FACTOR;
99 if (new_freq < AUDIO_CLICKY_FREQ_MAX) {
100 clicky_freq = new_freq;
103 if (keycode == CLICKY_TOGGLE && record->event.pressed) {
104 float new_freq = clicky_freq / AUDIO_CLICKY_FREQ_FACTOR;
105 if (new_freq > AUDIO_CLICKY_FREQ_MIN) {
106 clicky_freq = new_freq;
111 if ( (clicky_enable && keycode != CLICKY_TOGGLE) || (!clicky_enable && keycode == CLICKY_TOGGLE) ) {
112 if (record->event.pressed) {
117 #endif // AUDIO_CLICKY
122 void process_audio_noteon(uint8_t note) {
123 play_note(compute_freq_for_midi_note(note), 0xF);
126 void process_audio_noteoff(uint8_t note) {
127 stop_note(compute_freq_for_midi_note(note));
130 void process_audio_all_notes_off(void) {
134 __attribute__ ((weak))
135 void audio_on_user() {}