diff --git a/NewHorizons/Builder/Props/ProjectionBuilder.cs b/NewHorizons/Builder/Props/ProjectionBuilder.cs
index 439faaeb..0f34410e 100644
--- a/NewHorizons/Builder/Props/ProjectionBuilder.cs
+++ b/NewHorizons/Builder/Props/ProjectionBuilder.cs
@@ -83,7 +83,7 @@ namespace NewHorizons.Builder.Props
 
                 imageLoader.pathsToLoad.Add(mod.ModHelper.Manifest.ModFolderPath + slideInfo.imagePath);
 
-                AddModules(slideInfo, ref slide);
+                AddModules(slideInfo, ref slide, mod);
 
                 slideCollection.slides[i] = slide;
             }
@@ -171,7 +171,7 @@ namespace NewHorizons.Builder.Props
 
                 imageLoader.pathsToLoad.Add(mod.ModHelper.Manifest.ModFolderPath + slideInfo.imagePath);
 
-                AddModules(slideInfo, ref slide);
+                AddModules(slideInfo, ref slide, mod);
 
                 slideCollection.slides[i] = slide;
             }
@@ -218,7 +218,7 @@ namespace NewHorizons.Builder.Props
 
                 imageLoader.pathsToLoad.Add(mod.ModHelper.Manifest.ModFolderPath + slideInfo.imagePath);
 
-                AddModules(slideInfo, ref slide);
+                AddModules(slideInfo, ref slide, mod);
 
                 slideCollection.slides[i] = slide;
             }
@@ -282,7 +282,7 @@ namespace NewHorizons.Builder.Props
 
                 imageLoader.pathsToLoad.Add(mod.ModHelper.Manifest.ModFolderPath + slideInfo.imagePath);
 
-                AddModules(slideInfo, ref slide);
+                AddModules(slideInfo, ref slide, mod);
 
                 slideCollection.slides[i] = slide;
             }
@@ -322,20 +322,20 @@ namespace NewHorizons.Builder.Props
             return standingTorch;
         }
 
-        private static void AddModules(PropModule.SlideInfo slideInfo, ref Slide slide)
+        private static void AddModules(PropModule.SlideInfo slideInfo, ref Slide slide, IModBehaviour mod)
         {
             var modules = new List<SlideFunctionModule>();
             if (!String.IsNullOrEmpty(slideInfo.beatAudio))
             {
                 var audioBeat = new SlideBeatAudioModule();
-                audioBeat._audioType = (AudioType)Enum.Parse(typeof(AudioType), slideInfo.beatAudio);
+                audioBeat._audioType = AudioTypeHandler.GetAudioType(slideInfo.beatAudio, mod);
                 audioBeat._delay = slideInfo.beatDelay;
                 modules.Add(audioBeat);
             }
             if (!String.IsNullOrEmpty(slideInfo.backdropAudio))
             {
                 var audioBackdrop = new SlideBackdropAudioModule();
-                audioBackdrop._audioType = (AudioType)Enum.Parse(typeof(AudioType), slideInfo.backdropAudio);
+                audioBackdrop._audioType = AudioTypeHandler.GetAudioType(slideInfo.backdropAudio, mod);
                 audioBackdrop._fadeTime = slideInfo.backdropFadeTime;
                 modules.Add(audioBackdrop);
             }
diff --git a/NewHorizons/Handlers/AudioTypeHandler.cs b/NewHorizons/Handlers/AudioTypeHandler.cs
new file mode 100644
index 00000000..8d22b764
--- /dev/null
+++ b/NewHorizons/Handlers/AudioTypeHandler.cs
@@ -0,0 +1,91 @@
+using NewHorizons.Utility;
+using OWML.Common;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using UnityEngine;
+using Logger = NewHorizons.Utility.Logger;
+
+namespace NewHorizons.Handlers
+{
+    public static class AudioTypeHandler
+    {
+        private static Dictionary<string, AudioType> _customAudioTypes;
+        private static List<AudioLibrary.AudioEntry> _audioEntries;
+        private static int _startingInt = 4000;
+
+        public static void Init()
+        {
+            _customAudioTypes = new Dictionary<string, AudioType>();
+            _audioEntries = new List<AudioLibrary.AudioEntry>();
+
+            Main.Instance.ModHelper.Events.Unity.RunWhen(
+                () => Locator.GetAudioManager()?._libraryAsset != null,
+                PostInit
+            );
+        }
+
+        private static void PostInit()
+        {
+            Logger.LogVerbose($"Adding all custom AudioTypes to the library");
+
+            var library = Locator.GetAudioManager()._libraryAsset;
+            library.audioEntries = library.audioEntries.Concat(_audioEntries).ToArray();
+
+            Locator.GetAudioManager()._audioLibraryDict = library.BuildAudioEntryDictionary();
+        }
+
+        // Will return an existing audio type or create a new one for the given audio string
+        public static AudioType GetAudioType(string audio, IModBehaviour mod)
+        {
+            try
+            {
+                if (audio.Contains(".wav") || audio.Contains(".mp3") || audio.Contains(".ogg"))
+                {
+                    return AddCustomAudioType(audio, mod);
+                }
+                else
+                {
+                    return (AudioType)Enum.Parse(typeof(AudioType), audio);
+                }
+            }
+            catch (Exception e)
+            {
+                Logger.LogError($"Couldn't load AudioType {e.Message}, {e.StackTrace}");
+                return AudioType.None;
+            }
+        }
+
+        // Create a custom audio type from relative file path and the mod
+        public static AudioType AddCustomAudioType(string audioPath, IModBehaviour mod)
+        {
+            AudioType audioType;
+
+            var id = mod.ModHelper.Manifest.UniqueName + "_" + audioPath;
+            if (_customAudioTypes.TryGetValue(id, out audioType)) return audioType;
+
+            var audioClip = AudioUtilities.LoadAudio(mod.ModHelper.Manifest.ModFolderPath + "/" + audioPath);
+
+            if (audioClip == null)
+            {
+                Logger.LogError($"Couldn't create audioType for {audioPath}");
+                return AudioType.None;
+            }
+
+            return AddCustomAudioType(id, new AudioClip[] { audioClip });
+        }
+
+        // Create a custom audio type from a set of audio clips. Needs a unique ID
+        public static AudioType AddCustomAudioType(string id, AudioClip[] audioClips)
+        {
+            var audioType = (AudioType)_startingInt + _customAudioTypes.Count();
+
+            Logger.LogVerbose($"Registering custom audio type {id} as {audioType}");
+
+            _audioEntries.Add(new AudioLibrary.AudioEntry(audioType, audioClips));
+            _customAudioTypes.Add(id, audioType);
+
+            return audioType;
+        }
+    }
+}
diff --git a/NewHorizons/Main.cs b/NewHorizons/Main.cs
index 06b8e93b..a6b2dc49 100644
--- a/NewHorizons/Main.cs
+++ b/NewHorizons/Main.cs
@@ -273,7 +273,10 @@ namespace NewHorizons
                 BrambleNodeBuilder.Init();
                 AstroObjectLocator.Init();
                 StreamingHandler.Init();
+                AudioTypeHandler.Init();
+
                 PlanetCreationHandler.Init(BodyDict[CurrentStarSystem]);
+
                 VesselWarpHandler.LoadVessel();
                 SystemCreationHandler.LoadSystem(SystemDict[CurrentStarSystem]);
                 LoadTranslations(ModHelper.Manifest.ModFolderPath + "Assets/", this);