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-rw-r--r--quantum/process_keycode/process_audio.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/quantum/process_keycode/process_audio.c b/quantum/process_keycode/process_audio.c
index eb74796fa7..32057ae8dc 100644
--- a/quantum/process_keycode/process_audio.c
+++ b/quantum/process_keycode/process_audio.c
@@ -6,10 +6,14 @@
#endif
float voice_change_song[][2] = VOICE_CHANGE_SONG;
+#ifndef PITCH_STANDARD_A
+ #define PITCH_STANDARD_A 440.0f
+#endif
+
static float compute_freq_for_midi_note(uint8_t note)
{
// https://en.wikipedia.org/wiki/MIDI_tuning_standard
- return pow(2.0, (note - 69) / 12.0) * 440.0f;
+ return pow(2.0, (note - 69) / 12.0) * PITCH_STANDARD_A;
}
bool process_audio(uint16_t keycode, keyrecord_t *record) {