diff options
Diffstat (limited to 'quantum')
| -rw-r--r-- | quantum/audio/audio.c | 62 |
1 files changed, 58 insertions, 4 deletions
diff --git a/quantum/audio/audio.c b/quantum/audio/audio.c index f2948f18aa..04f3460033 100644 --- a/quantum/audio/audio.c +++ b/quantum/audio/audio.c @@ -75,6 +75,7 @@ int voices = 0; int voice_place = 0; float frequency = 0; +float frequency_alt = 0; int volume = 0; long position = 0; @@ -193,6 +194,7 @@ void stop_all_notes() playing_notes = false; playing_note = false; frequency = 0; + frequency_alt = 0; volume = 0; for (uint8_t i = 0; i < 8; i++) @@ -239,6 +241,7 @@ void stop_note(float freq) DISABLE_AUDIO_COUNTER_1_OUTPUT; #endif frequency = 0; + frequency_alt = 0; volume = 0; playing_note = false; } @@ -268,10 +271,52 @@ float vibrato(float average_freq) { #ifdef C6_AUDIO ISR(TIMER3_COMPA_vect) { - float freq; + float freq, freq_alt = 0; if (playing_note) { if (voices > 0) { + + #ifdef B5_AUDIO + if (voices > 1) { + if (polyphony_rate == 0) { + if (glissando) { + 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)) { + frequency_alt = frequency_alt * pow(2, -440/frequency_alt/12/2); + } else { + frequency_alt = frequencies[voices - 2]; + } + } else { + frequency_alt = frequencies[voices - 2]; + } + + #ifdef VIBRATO_ENABLE + if (vibrato_strength > 0) { + freq_alt = vibrato(frequency_alt); + } else { + freq_alt = frequency_alt; + } + #else + freq_alt = frequency_alt; + #endif + } + + if (envelope_index < 65535) { + envelope_index++; + } + + freq_alt = voice_envelope(freq_alt); + + 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); + } + #endif + if (polyphony_rate > 0) { if (voices > 1) { voice_place %= voices; @@ -396,10 +441,10 @@ ISR(TIMER3_COMPA_vect) } #endif -#ifdef B5_AUDIO ISR(TIMER1_COMPA_vect) { - float freq; + #if defined(B5_AUDIO) && !defined(C6_AUDIO) + float freq = 0; if (playing_note) { if (voices > 0) { @@ -524,8 +569,8 @@ ISR(TIMER1_COMPA_vect) playing_notes = false; playing_note = false; } -} #endif +} void play_note(float freq, int vol) { @@ -562,8 +607,15 @@ void play_note(float freq, int vol) { ENABLE_AUDIO_COUNTER_3_OUTPUT; #endif #ifdef B5_AUDIO + #ifdef C6_AUDIO + if (voices > 1) { + ENABLE_AUDIO_COUNTER_1_ISR; + ENABLE_AUDIO_COUNTER_1_OUTPUT; + } + #else ENABLE_AUDIO_COUNTER_1_ISR; ENABLE_AUDIO_COUNTER_1_OUTPUT; + #endif #endif } @@ -609,8 +661,10 @@ void play_notes(float (*np)[][2], uint16_t n_count, bool n_repeat, float n_rest) ENABLE_AUDIO_COUNTER_3_OUTPUT; #endif #ifdef B5_AUDIO + #ifndef C6_AUDIO ENABLE_AUDIO_COUNTER_1_ISR; ENABLE_AUDIO_COUNTER_1_OUTPUT; + #endif #endif } |