diff --git a/Bio_Industries_2/prototypes/Bio_Farm/entities.lua b/Bio_Industries_2/prototypes/Bio_Farm/entities.lua
index 69017fe..6fe0374 100644
--- a/Bio_Industries_2/prototypes/Bio_Farm/entities.lua
+++ b/Bio_Industries_2/prototypes/Bio_Farm/entities.lua
@@ -9,18 +9,6 @@ local ENTITYPATH = BioInd.modRoot .. "/graphics/entities/biofarm/"
 require ("prototypes.Bio_Farm.pipeConnectors")
 require ("util")
 
--- demo-sounds has been removed in Factorio 1.1, so we need to check the game version!
-local sound_def = BioInd.check_version("base", "<", "1.1.0") and
-                    require("__base__.prototypes.entity.demo-sounds") or
-                    require("__base__.prototypes.entity.sounds")
-local sounds = {}
-sounds.car_wood_impact = sound_def.car_wood_impact(0.8)
-sounds.generic_impact = sound_def.generic_impact
-  for _, sound in ipairs(sounds.generic_impact) do
-    sound.volume = 0.65
-  end
-
-
 inv_extension2 = {
   filename = ENTITYPATH .. "Bio_Farm_Idle_alt.png",
   priority = "high",
@@ -64,7 +52,7 @@ data:extend({
     collision_box = {{-0.1, -0.1}, {0.1, 0.1}},
     selection_box = {{-0.5, -0.5}, {0.5, 0.5}},
     subgroup = "trees",
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     picture = {
       filename = ICONPATH .. "Seedling_b.png",
       priority = "extra-high",
@@ -106,7 +94,7 @@ data:extend({
     collision_box = {{-0.1, -0.1}, {0.1, 0.1}},
     selection_box = {{-0.5, -0.5}, {0.5, 0.5}},
     subgroup = "trees",
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     picture = {
       filename = ICONPATH .. "Seedling_b.png",
       priority = "extra-high",
@@ -147,7 +135,7 @@ data:extend({
     collision_box = {{-0.1, -0.1}, {0.1, 0.1}},
     selection_box = {{-0.5, -0.5}, {0.5, 0.5}},
     subgroup = "trees",
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     picture = {
       filename = ICONPATH .. "Seedling_b.png",
       priority = "extra-high",
@@ -231,7 +219,6 @@ data:extend({
     ingredient_count = 3,
     open_sound = { filename = "__base__/sound/machine-open.ogg", volume = 0.85 },
     close_sound = { filename = "__base__/sound/machine-close.ogg", volume = 0.75 },
-    vehicle_impact_sound = sounds.generic_impact,
     module_specification = {
       module_slots = 3
     },
@@ -497,8 +484,7 @@ data:extend({
       }
     },
     open_sound = { filename = "__base__/sound/machine-open.ogg", volume = 0.85 },
-    close_sound = { filename = "__base__/sound/machine-close.ogg", volume = 0.75 },
-    vehicle_impact_sound = sounds.generic_impact,
+    close_sound = { filename = "__base__/sound/machine-close.ogg", volume = 0.75 }
   },
 
   -- COKERY
@@ -1028,7 +1014,6 @@ data:extend({
     ingredient_count = 3,
     open_sound = { filename = "__base__/sound/machine-open.ogg", volume = 0.85 },
     close_sound = { filename = "__base__/sound/machine-close.ogg", volume = 0.75 },
-    vehicle_impact_sound = sounds.generic_impact,
     module_specification = {},
   },
 })
@@ -1042,7 +1027,7 @@ data:extend({
 local my_seedling = util.table.deepcopy(data.raw.tree["tree-01"])
 my_seedling.name = "seedling"
 --~ my_seedling.vehicle_impact_sound = { filename = "__base__/sound/car-wood-impact.ogg", volume = 0.8 }
-my_seedling.vehicle_impact_sound = vehicle_impact_sound = sounds.car_wood_impact
+my_seedling.vehicle_impact_sound = impact_category = "wood"
 my_seedling.flags = {"placeable-neutral", "placeable-player", "playeminabler-creation", "breaths-air"}
 my_seedling.minable = {mining_particle = "wooden-particle", mining_time = 0.25, result = "seedling", count = 1}
 my_seedling.corpse = nil
diff --git a/Bio_Industries_2/prototypes/Bio_Fuel/entities.lua b/Bio_Industries_2/prototypes/Bio_Fuel/entities.lua
index d235adc..04b69e4 100644
--- a/Bio_Industries_2/prototypes/Bio_Fuel/entities.lua
+++ b/Bio_Industries_2/prototypes/Bio_Fuel/entities.lua
@@ -6,20 +6,6 @@ local ENTITYPATH = "__base__/graphics/entity/boiler/"
 require ("util")
 require ("prototypes.Bio_Fuel.pipeConnectors")
 
---~ if BI.Settings.BI_Bio_Fuel then
-
--- demo-sounds has been removed in Factorio 1.1, so we need to check the game version!
-local sound_def = BioInd.check_version("base", "<", "1.1.0") and
-                    require("__base__.prototypes.entity.demo-sounds") or
-                    require("__base__.prototypes.entity.sounds")
-local sounds = {}
-sounds.generic_impact = sound_def.generic_impact
-for _, sound in ipairs(sounds.generic_impact) do
-  sound.volume = 0.65
-end
-
-
-
 bio_boiler_tint = {r = 0.5, g = 0.5, b = 0.1, a = 0.7}
 
 -- Changed for 0.18.29: We always want to make advanced fertilizer, so we need to
@@ -138,7 +124,6 @@ if BI.Settings.BI_Bio_Fuel then
       minable = {hardness = 0.2, mining_time = 0.5, result = "bi-bio-boiler"},
       max_health = 300,
       corpse = "small-remnants",
-      vehicle_impact_sound = sounds.generic_impact,
       mode = "output-to-separate-pipe",
       resistances = {
         {
diff --git a/Bio_Industries_2/prototypes/Bio_Solar_Farm/entities.lua b/Bio_Industries_2/prototypes/Bio_Solar_Farm/entities.lua
index f1a7177..da10a8a 100644
--- a/Bio_Industries_2/prototypes/Bio_Solar_Farm/entities.lua
+++ b/Bio_Industries_2/prototypes/Bio_Solar_Farm/entities.lua
@@ -10,21 +10,11 @@ local ENTITYPATH = "__Bio_Industries__/graphics/entities/bio_solar_farm/"
 if BI.Settings.BI_Solar_Additions then
 
 
--- demo-sounds has been removed in Factorio 1.1, so we need to check the game version!
-local sound_def = BioInd.check_version("base", "<", "1.1.0") and
-                    require("__base__.prototypes.entity.demo-sounds") or
-                    require("__base__.prototypes.entity.sounds")
 local sounds = {}
-sounds.car_wood_impact = sound_def.car_wood_impact(1)
-sounds.generic_impact = sound_def.generic_impact
-for _, sound in ipairs(sounds.generic_impact) do
-  sound.volume = 0.65
-end
-
 sounds.walking_sound = {}
 for i = 1, 11 do
   sounds.walking_sound[i] = {
-    filename = "__base__/sound/walking/concrete-" .. (i < 10 and "0" or "")  .. i ..".ogg",
+    filename = "__base__/sound/walking/concrete-" .. i ..".ogg",
     volume = 1.2
   }
 end
@@ -133,7 +123,6 @@ data:extend({
     },
     discharge_cooldown = 60,
     discharge_light = {intensity = 0.7, size = 7, color = {r = 1.0, g = 1.0, b = 1.0}},
-    vehicle_impact_sound = sounds.generic_impact,
     working_sound = {
       sound = {
         filename = "__base__/sound/accumulator-working.ogg",
@@ -206,7 +195,6 @@ data:extend({
       direction_count = 1,
       scale = 0.5,
     },
-    vehicle_impact_sound = sounds.generic_impact,
     working_sound = {
       sound = { filename = "__base__/sound/substation.ogg" },
       apparent_volume = 1.8,
diff --git a/Bio_Industries_2/prototypes/Bio_Turret/entity.lua b/Bio_Industries_2/prototypes/Bio_Turret/entity.lua
index c2b14c9..113f8a9 100644
--- a/Bio_Industries_2/prototypes/Bio_Turret/entity.lua
+++ b/Bio_Industries_2/prototypes/Bio_Turret/entity.lua
@@ -2,17 +2,6 @@ local BioInd = require('common')('Bio_Industries')
 
 local ICONPATH = BioInd.modRoot .. "/graphics/icons/"
 
--- demo-sounds has been removed in Factorio 1.1, so we need to check the game version!
-local sound_def = BioInd.check_version("base", "<", "1.1.0") and
-                    require("__base__.prototypes.entity.demo-sounds") or
-                    require("__base__.prototypes.entity.sounds")
-local sounds = {}
-sounds.car_wood_impact = sound_def.car_wood_impact(0.8)
-sounds.generic_impact = sound_def.generic_impact
-for _, sound in ipairs(sounds.generic_impact) do
-  sound.volume = 0.65
-end
-
 data:extend({
   --- Basic Dart
   {
@@ -265,7 +254,7 @@ data:extend({
     folding_animation = turret_pic{direction_count = 8, line_length = 1, run_mode = "backward"},
 
     -- darkfrei: wood impact sound for woods!
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     attack_parameters = {
       type = "projectile",
       ammo_category = "Bio_Turret_Ammo",
diff --git a/Bio_Industries_2/prototypes/Wood_Products/containers-entities.lua b/Bio_Industries_2/prototypes/Wood_Products/containers-entities.lua
index f6c9cdb..7e6ec54 100644
--- a/Bio_Industries_2/prototypes/Wood_Products/containers-entities.lua
+++ b/Bio_Industries_2/prototypes/Wood_Products/containers-entities.lua
@@ -11,32 +11,16 @@ BioInd.writeDebug("Creating bigger wooden chests!")
 local ICONPATH = BioInd.modRoot .. "/graphics/icons/"
 local WOODPATH = BioInd.modRoot .. "/graphics/entities/wood_products/"
 
-local ENTITYPATH = "__base__/graphics/entity/"
-local PIPEPATH = ENTITYPATH .. "pipe/"
-
 local SNDPATH = "__base__/sound/"
---~ local BIGICONS = BioInd.check_base_version("0.18.0")
 
-
-require("prototypes.Wood_Products.demo-remnants-wood")
-
--- demo-sounds has been removed in Factorio 1.1, so we need to check the game version!
-local sound_def = BioInd.check_version("base", "<", "1.1.0") and
-                    require("__base__.prototypes.entity.demo-sounds") or
-                    require("__base__.prototypes.entity.sounds")
 local sounds = {}
-sounds.car_wood_impact = sound_def.car_wood_impact(0.8)
-sounds.generic_impact = sound_def.generic_impact
-for _, sound in ipairs(sounds.generic_impact) do
-  sound.volume = 0.65
-end
 sounds.open_sound = { filename = "__base__/sound/wooden-chest-open.ogg" }
 sounds.close_sound = { filename = SNDPATH .. "wooden-chest-close.ogg" }
 
 sounds.walking_sound = {}
 for i = 1, 11 do
   sounds.walking_sound[i] = {
-    filename = SNDPATH .. "walking/concrete-" .. (i < 10 and "0" or "")  .. i ..".ogg",
+    filename = SNDPATH .. "walking/concrete-" .. i ..".ogg",
     volume = 1.2
   }
 end
@@ -78,8 +62,7 @@ data:extend({
     inventory_size = 128, -- 64
     open_sound = { filename = "__base__/sound/wooden-chest-open.ogg" },
     close_sound = { filename = "__base__/sound/wooden-chest-close.ogg" },
-    --~ vehicle_impact_sound =  { filename = "__base__/sound/car-wood-impact.ogg", volume = 1.0 },
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     picture = {
       filename = WOODPATH .. "large_wooden_chest.png",
       priority = "extra-high",
@@ -122,7 +105,7 @@ data:extend({
     open_sound = { filename = "__base__/sound/wooden-chest-open.ogg" },
     close_sound = { filename = "__base__/sound/wooden-chest-close.ogg" },
     --~ vehicle_impact_sound =  { filename = "__base__/sound/car-wood-impact.ogg", volume = 1.0 },
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     picture = {
       filename = WOODPATH .. "huge_wooden_chest.png",
       priority = "extra-high",
@@ -165,7 +148,7 @@ data:extend({
     open_sound = { filename = "__base__/sound/wooden-chest-open.ogg" },
     close_sound = { filename = "__base__/sound/wooden-chest-close.ogg" },
     --~ vehicle_impact_sound =  { filename = "__base__/sound/car-wood-impact.ogg", volume = 1.0 },
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     picture = {
       filename = WOODPATH .. "giga_wooden_chest.png",
       priority = "extra-high",
diff --git a/Bio_Industries_2/prototypes/Wood_Products/entities.lua b/Bio_Industries_2/prototypes/Wood_Products/entities.lua
index fd24b8f..3d24878 100644
--- a/Bio_Industries_2/prototypes/Wood_Products/entities.lua
+++ b/Bio_Industries_2/prototypes/Wood_Products/entities.lua
@@ -10,25 +10,12 @@ local SNDPATH = "__base__/sound/"
 --~ local BIGICONS = BioInd.check_base_version("0.18.0")
 
 
-require("prototypes.Wood_Products.demo-remnants-wood")
-
 -- demo-sounds has been removed in Factorio 1.1, so we need to check the game version!
-local sound_def = BioInd.check_version("base", "<", "1.1.0") and
-                    require("__base__.prototypes.entity.demo-sounds") or
-                    require("__base__.prototypes.entity.sounds")
 local sounds = {}
-sounds.car_wood_impact = sound_def.car_wood_impact(0.8)
-sounds.generic_impact = sound_def.generic_impact
-for _, sound in ipairs(sounds.generic_impact) do
-  sound.volume = 0.65
-end
---~ sounds.open_sound = { filename = "__base__/sound/wooden-chest-open.ogg" }
---~ sounds.close_sound = { filename = SNDPATH .. "wooden-chest-close.ogg" }
-
 sounds.walking_sound = {}
 for i = 1, 11 do
   sounds.walking_sound[i] = {
-    filename = SNDPATH .. "walking/concrete-" .. (i < 10 and "0" or "")  .. i ..".ogg",
+    filename = SNDPATH .. "walking/concrete-" .. i ..".ogg",
     volume = 1.2
   }
 end
@@ -486,7 +473,7 @@ data:extend({
     corpse = "wall-remnants",
     repair_sound = { filename = "__base__/sound/manual-repair-simple.ogg" },
     --~ vehicle_impact_sound =  { filename = "__base__/sound/car-wood-impact.ogg", volume = 1.0 },
-    vehicle_impact_sound = sounds.car_wood_impact,
+    impact_category = "wood",
     resistances = {
       {
         type = "physical",
@@ -1057,10 +1044,7 @@ data:extend({
         { position = {-1, 0} }
       },
     },
-    --~ vehicle_impact_sound =  { filename = "__base__/sound/car-metal-impact.ogg", volume = 0.65 },
-    vehicle_impact_sound = sounds.generic_impact,
     pictures = pipepictures_w(),
-        --pictures = pipe_pictures,
     working_sound = {
       sound = {
         {
@@ -1124,7 +1108,6 @@ data:extend({
       scale = 0.5
     },
     --~ vehicle_impact_sound =  { filename = "__base__/sound/car-metal-impact.ogg", volume = 0.65 },
-    vehicle_impact_sound = sounds.generic_impact,
     pictures = {
       up = {
           filename = ENTITYPATH .. "/pipe-to-ground/hr-pipe-to-ground-up.png",