robots_sounds_fix.diff

diff --git a/prototypes/robots/py-construction-robot-01.lua b/prototypes/robots/py-construction-robot-01.lua
index 68e6483..581da97 100644
--- a/prototypes/robots/py-construction-robot-01.lua
+++ b/prototypes/robots/py-construction-robot-01.lua
@@ -1,3 +1,5 @@
+local sounds = require "__base__/prototypes/entity/demo-sounds"
+
 RECIPE {
     type = 'recipe',
     name = 'py-construction-robot-01',
@@ -246,10 +248,7 @@ ENTITY {
             animation_speed = 0.3
         }
     },
-    working_sound =
-      {
-        filename = '__base__/sound/flying-robot-1.ogg',
-      },
+    working_sound = sounds.construction_robot(0.7),
     cargo_centered = {0.0, 0.2},
     construction_vector = {0.30, 0.22}
 }
diff --git a/prototypes/robots/py-logistic-robot-01.lua b/prototypes/robots/py-logistic-robot-01.lua
index 0a9c2eb..a35731d 100644
--- a/prototypes/robots/py-logistic-robot-01.lua
+++ b/prototypes/robots/py-logistic-robot-01.lua
@@ -1,3 +1,5 @@
+local sounds = require "__base__/prototypes/entity/demo-sounds"
+
 local cargo_bot =
     RECIPE {
     type = 'recipe',
@@ -230,9 +232,6 @@ ENTITY {
             scale = 0.5
         }
     },
-    working_sound =
-      {
-        filename = '__base__/sound/flying-robot-1.ogg',
-      },
+    working_sound = sounds.flying_robot(0.5),
     cargo_centered = {0.0, 0.2}
 }