Fixes issue #900

[qmk_firmware.git] / quantum / audio / voices.c

diff --git a/quantum/audio/voices.c b/quantum/audio/voices.c
index 6d4172a06c2dedd3def472ea500ec233f69eb4a8..19f7b646ef8eb2a71304e4bb9a5b612283da27c5 100644 (file)
--- a/quantum/audio/voices.c
+++ b/quantum/audio/voices.c
@@ -18,7 +18,7 @@ void voice_iterate() {
 }
 
 void voice_deiterate() {
-    voice = (voice - 1) % number_of_voices;
+    voice = (voice - 1 + number_of_voices) % number_of_voices;
 }
 
 float voice_envelope(float frequency) {
@@ -31,6 +31,27 @@ float voice_envelope(float frequency) {
             polyphony_rate = 0;
                break;
 
+        case something:
+            polyphony_rate = 0;
+            switch (compensated_index) {
+                case 0 ... 9:
+                    note_timbre = TIMBRE_12;
+                    break;
+
+                case 10 ... 19:
+                    note_timbre = TIMBRE_25;
+                    break;
+
+                case 20 ... 200:
+                    note_timbre = .25 + .125 + pow(((float)compensated_index - 20) / (200 - 20), 2)*.125;
+                    break;
+
+                default:
+                    note_timbre = .25;
+                    break;
+            }
+            break;
+
         case butts_fader:
             polyphony_rate = 0;
             switch (compensated_index) {