1 files changed, 5 insertions, 1 deletions

diff --git a/quantum/audio/voices.h b/quantum/audio/voices.h
index 317f5d98c..44c5066b5 100644
--- a/quantum/audio/voices.h
+++ b/quantum/audio/voices.h
@@ -13,9 +13,13 @@ float voice_envelope(float frequency);
 typedef enum {
     default_voice,
     butts_fader,
-    octave_crunch
+    octave_crunch,
+    duty_osc,
+    number_of_voices // important that this is last
 } voice_type;
 
 void set_voice(voice_type v);
+void voice_iterate();
+void voice_deiterate();
 
 #endif
\ No newline at end of file