diff --git a/main.lua b/main.lua
index f8df9ae3..3793b7ba 100644
--- a/main.lua
+++ b/main.lua
@@ -246,7 +246,7 @@ VOC.init{
     'mini','b2b','b3b',
     'perfect_clear','half_clear',
     'win','lose','bye',
-    'test','happy','doubt','sad','egg',
+    'test','happy','doubt',
     'welcome_voc',
 }
 
diff --git a/media/vocal/miku/egg.ogg b/media/vocal/miku/egg.ogg
deleted file mode 100644
index 0f0a2d10..00000000
Binary files a/media/vocal/miku/egg.ogg and /dev/null differ
diff --git a/media/vocal/miku/sad.ogg b/media/vocal/miku/sad.ogg
deleted file mode 100644
index c23a7275..00000000
Binary files a/media/vocal/miku/sad.ogg and /dev/null differ
diff --git a/media/vocal/miya/egg_1.ogg b/media/vocal/miya/egg_1.ogg
deleted file mode 100644
index c91ce691..00000000
Binary files a/media/vocal/miya/egg_1.ogg and /dev/null differ
diff --git a/media/vocal/miya/egg_2.ogg b/media/vocal/miya/egg_2.ogg
deleted file mode 100644
index a7765e94..00000000
Binary files a/media/vocal/miya/egg_2.ogg and /dev/null differ
diff --git a/media/vocal/miya/sad.ogg b/media/vocal/miya/sad.ogg
deleted file mode 100644
index 4270f18c..00000000
Binary files a/media/vocal/miya/sad.ogg and /dev/null differ
diff --git a/media/vocal/naki/b2b_1.ogg b/media/vocal/mono/b2b_1.ogg
similarity index 100%
rename from media/vocal/naki/b2b_1.ogg
rename to media/vocal/mono/b2b_1.ogg
diff --git a/media/vocal/naki/b2b_2.ogg b/media/vocal/mono/b2b_2.ogg
similarity index 100%
rename from media/vocal/naki/b2b_2.ogg
rename to media/vocal/mono/b2b_2.ogg
diff --git a/media/vocal/naki/b3b_1.ogg b/media/vocal/mono/b3b_1.ogg
similarity index 100%
rename from media/vocal/naki/b3b_1.ogg
rename to media/vocal/mono/b3b_1.ogg
diff --git a/media/vocal/naki/b3b_2.ogg b/media/vocal/mono/b3b_2.ogg
similarity index 100%
rename from media/vocal/naki/b3b_2.ogg
rename to media/vocal/mono/b3b_2.ogg
diff --git a/media/vocal/naki/double.ogg b/media/vocal/mono/double.ogg
similarity index 100%
rename from media/vocal/naki/double.ogg
rename to media/vocal/mono/double.ogg
diff --git a/media/vocal/naki/half_clear_1.ogg b/media/vocal/mono/half_clear_1.ogg
similarity index 100%
rename from media/vocal/naki/half_clear_1.ogg
rename to media/vocal/mono/half_clear_1.ogg
diff --git a/media/vocal/naki/ispin_1.ogg b/media/vocal/mono/ispin_1.ogg
similarity index 100%
rename from media/vocal/naki/ispin_1.ogg
rename to media/vocal/mono/ispin_1.ogg
diff --git a/media/vocal/naki/ispin_2.ogg b/media/vocal/mono/ispin_2.ogg
similarity index 100%
rename from media/vocal/naki/ispin_2.ogg
rename to media/vocal/mono/ispin_2.ogg
diff --git a/media/vocal/naki/ispin_3.ogg b/media/vocal/mono/ispin_3.ogg
similarity index 100%
rename from media/vocal/naki/ispin_3.ogg
rename to media/vocal/mono/ispin_3.ogg
diff --git a/media/vocal/naki/ispin_4.ogg b/media/vocal/mono/ispin_4.ogg
similarity index 100%
rename from media/vocal/naki/ispin_4.ogg
rename to media/vocal/mono/ispin_4.ogg
diff --git a/media/vocal/naki/jspin_1.ogg b/media/vocal/mono/jspin_1.ogg
similarity index 100%
rename from media/vocal/naki/jspin_1.ogg
rename to media/vocal/mono/jspin_1.ogg
diff --git a/media/vocal/naki/jspin_2.ogg b/media/vocal/mono/jspin_2.ogg
similarity index 100%
rename from media/vocal/naki/jspin_2.ogg
rename to media/vocal/mono/jspin_2.ogg
diff --git a/media/vocal/naki/jspin_3.ogg b/media/vocal/mono/jspin_3.ogg
similarity index 100%
rename from media/vocal/naki/jspin_3.ogg
rename to media/vocal/mono/jspin_3.ogg
diff --git a/media/vocal/naki/jspin_4.ogg b/media/vocal/mono/jspin_4.ogg
similarity index 100%
rename from media/vocal/naki/jspin_4.ogg
rename to media/vocal/mono/jspin_4.ogg
diff --git a/media/vocal/naki/lose_1.ogg b/media/vocal/mono/lose_1.ogg
similarity index 100%
rename from media/vocal/naki/lose_1.ogg
rename to media/vocal/mono/lose_1.ogg
diff --git a/media/vocal/naki/lose_2.ogg b/media/vocal/mono/lose_2.ogg
similarity index 100%
rename from media/vocal/naki/lose_2.ogg
rename to media/vocal/mono/lose_2.ogg
diff --git a/media/vocal/naki/lose_3.ogg b/media/vocal/mono/lose_3.ogg
similarity index 100%
rename from media/vocal/naki/lose_3.ogg
rename to media/vocal/mono/lose_3.ogg
diff --git a/media/vocal/naki/lspin_1.ogg b/media/vocal/mono/lspin_1.ogg
similarity index 100%
rename from media/vocal/naki/lspin_1.ogg
rename to media/vocal/mono/lspin_1.ogg
diff --git a/media/vocal/naki/lspin_2.ogg b/media/vocal/mono/lspin_2.ogg
similarity index 100%
rename from media/vocal/naki/lspin_2.ogg
rename to media/vocal/mono/lspin_2.ogg
diff --git a/media/vocal/naki/lspin_3.ogg b/media/vocal/mono/lspin_3.ogg
similarity index 100%
rename from media/vocal/naki/lspin_3.ogg
rename to media/vocal/mono/lspin_3.ogg
diff --git a/media/vocal/naki/mini_1.ogg b/media/vocal/mono/mini_1.ogg
similarity index 100%
rename from media/vocal/naki/mini_1.ogg
rename to media/vocal/mono/mini_1.ogg
diff --git a/media/vocal/naki/mini_2.ogg b/media/vocal/mono/mini_2.ogg
similarity index 100%
rename from media/vocal/naki/mini_2.ogg
rename to media/vocal/mono/mini_2.ogg
diff --git a/media/vocal/naki/mini_3.ogg b/media/vocal/mono/mini_3.ogg
similarity index 100%
rename from media/vocal/naki/mini_3.ogg
rename to media/vocal/mono/mini_3.ogg
diff --git a/media/vocal/naki/ospin_1.ogg b/media/vocal/mono/ospin_1.ogg
similarity index 100%
rename from media/vocal/naki/ospin_1.ogg
rename to media/vocal/mono/ospin_1.ogg
diff --git a/media/vocal/naki/ospin_2.ogg b/media/vocal/mono/ospin_2.ogg
similarity index 100%
rename from media/vocal/naki/ospin_2.ogg
rename to media/vocal/mono/ospin_2.ogg
diff --git a/media/vocal/naki/ospin_3.ogg b/media/vocal/mono/ospin_3.ogg
similarity index 100%
rename from media/vocal/naki/ospin_3.ogg
rename to media/vocal/mono/ospin_3.ogg
diff --git a/media/vocal/naki/perfect_clear.ogg b/media/vocal/mono/perfect_clear.ogg
similarity index 100%
rename from media/vocal/naki/perfect_clear.ogg
rename to media/vocal/mono/perfect_clear.ogg
diff --git a/media/vocal/naki/single_1.ogg b/media/vocal/mono/single_1.ogg
similarity index 100%
rename from media/vocal/naki/single_1.ogg
rename to media/vocal/mono/single_1.ogg
diff --git a/media/vocal/naki/single_2.ogg b/media/vocal/mono/single_2.ogg
similarity index 100%
rename from media/vocal/naki/single_2.ogg
rename to media/vocal/mono/single_2.ogg
diff --git a/media/vocal/naki/sspin_1.ogg b/media/vocal/mono/sspin_1.ogg
similarity index 100%
rename from media/vocal/naki/sspin_1.ogg
rename to media/vocal/mono/sspin_1.ogg
diff --git a/media/vocal/naki/sspin_2.ogg b/media/vocal/mono/sspin_2.ogg
similarity index 100%
rename from media/vocal/naki/sspin_2.ogg
rename to media/vocal/mono/sspin_2.ogg
diff --git a/media/vocal/naki/sspin_3.ogg b/media/vocal/mono/sspin_3.ogg
similarity index 100%
rename from media/vocal/naki/sspin_3.ogg
rename to media/vocal/mono/sspin_3.ogg
diff --git a/media/vocal/naki/techrash_1.ogg b/media/vocal/mono/techrash_1.ogg
similarity index 100%
rename from media/vocal/naki/techrash_1.ogg
rename to media/vocal/mono/techrash_1.ogg
diff --git a/media/vocal/naki/techrash_2.ogg b/media/vocal/mono/techrash_2.ogg
similarity index 100%
rename from media/vocal/naki/techrash_2.ogg
rename to media/vocal/mono/techrash_2.ogg
diff --git a/media/vocal/naki/test_1.ogg b/media/vocal/mono/test_1.ogg
similarity index 100%
rename from media/vocal/naki/test_1.ogg
rename to media/vocal/mono/test_1.ogg
diff --git a/media/vocal/naki/test_2.ogg b/media/vocal/mono/test_2.ogg
similarity index 100%
rename from media/vocal/naki/test_2.ogg
rename to media/vocal/mono/test_2.ogg
diff --git a/media/vocal/naki/triple.ogg b/media/vocal/mono/triple.ogg
similarity index 100%
rename from media/vocal/naki/triple.ogg
rename to media/vocal/mono/triple.ogg
diff --git a/media/vocal/naki/triple_1.ogg b/media/vocal/mono/triple_1.ogg
similarity index 100%
rename from media/vocal/naki/triple_1.ogg
rename to media/vocal/mono/triple_1.ogg
diff --git a/media/vocal/naki/tspin_1.ogg b/media/vocal/mono/tspin_1.ogg
similarity index 100%
rename from media/vocal/naki/tspin_1.ogg
rename to media/vocal/mono/tspin_1.ogg
diff --git a/media/vocal/naki/tspin_2.ogg b/media/vocal/mono/tspin_2.ogg
similarity index 100%
rename from media/vocal/naki/tspin_2.ogg
rename to media/vocal/mono/tspin_2.ogg
diff --git a/media/vocal/naki/tspin_3.ogg b/media/vocal/mono/tspin_3.ogg
similarity index 100%
rename from media/vocal/naki/tspin_3.ogg
rename to media/vocal/mono/tspin_3.ogg
diff --git a/media/vocal/naki/welcome_voc_1.ogg b/media/vocal/mono/welcome_voc_1.ogg
similarity index 100%
rename from media/vocal/naki/welcome_voc_1.ogg
rename to media/vocal/mono/welcome_voc_1.ogg
diff --git a/media/vocal/naki/welcome_voc_2.ogg b/media/vocal/mono/welcome_voc_2.ogg
similarity index 100%
rename from media/vocal/naki/welcome_voc_2.ogg
rename to media/vocal/mono/welcome_voc_2.ogg
diff --git a/media/vocal/naki/welcome_voc_3.ogg b/media/vocal/mono/welcome_voc_3.ogg
similarity index 100%
rename from media/vocal/naki/welcome_voc_3.ogg
rename to media/vocal/mono/welcome_voc_3.ogg
diff --git a/media/vocal/naki/win_1.ogg b/media/vocal/mono/win_1.ogg
similarity index 100%
rename from media/vocal/naki/win_1.ogg
rename to media/vocal/mono/win_1.ogg
diff --git a/media/vocal/naki/win_2.ogg b/media/vocal/mono/win_2.ogg
similarity index 100%
rename from media/vocal/naki/win_2.ogg
rename to media/vocal/mono/win_2.ogg
diff --git a/media/vocal/naki/win_3.ogg b/media/vocal/mono/win_3.ogg
similarity index 100%
rename from media/vocal/naki/win_3.ogg
rename to media/vocal/mono/win_3.ogg
diff --git a/media/vocal/naki/zspin_1.ogg b/media/vocal/mono/zspin_1.ogg
similarity index 100%
rename from media/vocal/naki/zspin_1.ogg
rename to media/vocal/mono/zspin_1.ogg
diff --git a/media/vocal/naki/zspin_2.ogg b/media/vocal/mono/zspin_2.ogg
similarity index 100%
rename from media/vocal/naki/zspin_2.ogg
rename to media/vocal/mono/zspin_2.ogg
diff --git a/media/vocal/naki/zspin_3.ogg b/media/vocal/mono/zspin_3.ogg
similarity index 100%
rename from media/vocal/naki/zspin_3.ogg
rename to media/vocal/mono/zspin_3.ogg
diff --git a/parts/scenes/setting_sound.lua b/parts/scenes/setting_sound.lua
index abf0faf5..3367b596 100644
--- a/parts/scenes/setting_sound.lua
+++ b/parts/scenes/setting_sound.lua
@@ -1,7 +1,6 @@
 local gc=love.graphics
 
 local sin=math.sin
-local rnd=math.random
 
 local scene={}
 
@@ -30,11 +29,7 @@ function scene.mouseDown(x,y)
             if t>2.6 and t<3 and not GAME.playing then
                 loadGame('sprintSmooth',true)
             else
-                VOC.play(
-                    (t<1.5 or t>15)and"doubt"or
-                    rnd()<.8 and"happy"or
-                    "egg"
-                )
+                VOC.play((t<1.26 or t>6.26)and'doubt'or'happy')
                 last=TIME()
             end
         end