Unify MIDI note calculation with the audio feature's algorithm (qmk#2…

…1588)
csolje · Oct 21, 2023 · f909384 · f909384
1 parent 5570470
commit f909384
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/quantum/midi/qmk_midi.c b/quantum/midi/qmk_midi.c
@@ -108,10 +108,10 @@ static void fallthrough_callback(MidiDevice* device, uint16_t cnt, uint8_t byte0
     if (cnt == 3) {
         switch (byte0 & 0xF0) {
             case MIDI_NOTEON:
-                play_note(((double)261.6) * pow(2.0, -4.0) * pow(2.0, (byte1 & 0x7F) / 12.0), (byte2 & 0x7F) / 8);
+                play_note(440.0f * powf(2.0f, ((byte1 & 0x7F) - 57) / 12.0f), (byte2 & 0x7F) / 8);
                 break;
             case MIDI_NOTEOFF:
-                stop_note(((double)261.6) * pow(2.0, -4.0) * pow(2.0, (byte1 & 0x7F) / 12.0));
+                stop_note(440.0f * powf(2.0f, ((byte1 & 0x7F) - 57) / 12.0f));
                 break;
         }
     }