diff --git a/src/sound/SESound.cpp b/src/sound/SESound.cpp
index 746384e..1bed896 100644
--- a/src/sound/SESound.cpp
+++ b/src/sound/SESound.cpp
@@ -599,6 +599,22 @@ void SESound::Play() {
     }
 }
 
+void SESound::SetFadeInTime(float fadeInTime) {
+    if (!this->m_internal) {
+        return;
+    }
+
+    this->m_internal->m_fadeInTime = fadeInTime;
+}
+
+void SESound::SetFadeOutTime(float fadeOutTime) {
+    if (!this->m_internal) {
+        return;
+    }
+
+    this->m_internal->m_fadeOutTime = fadeOutTime;
+}
+
 void SESound::SetUserData(SEUserData* userData) {
     if (!this->m_internal) {
         return;
diff --git a/src/sound/SESound.hpp b/src/sound/SESound.hpp
index 045ecd3..c191194 100644
--- a/src/sound/SESound.hpp
+++ b/src/sound/SESound.hpp
@@ -40,6 +40,8 @@ class SESound {
         bool IsPlaying();
         int32_t Load(const char* filename, int32_t a3, FMOD::SoundGroup* soundGroup1, FMOD::SoundGroup* soundGroup2, bool a6, bool a7, uint32_t a8, int32_t a9, uint32_t a10);
         void Play();
+        void SetFadeInTime(float fadeInTime);
+        void SetFadeOutTime(float fadeOutTime);
         void SetUserData(SEUserData* userData);
 
     private:
diff --git a/src/sound/SESoundInternal.hpp b/src/sound/SESoundInternal.hpp
index 1a09948..8b7e649 100644
--- a/src/sound/SESoundInternal.hpp
+++ b/src/sound/SESoundInternal.hpp
@@ -31,6 +31,12 @@ class SESoundInternal : public TSLinkedNode<SESoundInternal> {
         FMOD::Channel* m_fmodChannel = nullptr;
         SESound* m_sound = nullptr;
         SEUserData* m_userData = nullptr;
+        float m_volume = 1.0f;
+        float m_fadeVolume = 0.0f;
+        float m_fadeInTime = 0.0f;
+        float m_fadeOutTime = 0.0f;
+        uint8_t m_fadeIn = 0;
+        uint8_t m_fadeOut = 0;
         // TODO
         int32_t m_useCache = 0;
         int32_t m_type = 0;
diff --git a/src/sound/SI2.cpp b/src/sound/SI2.cpp
index 3fc1586..df38bdc 100644
--- a/src/sound/SI2.cpp
+++ b/src/sound/SI2.cpp
@@ -426,6 +426,16 @@ int32_t SI2::PlaySoundKit(int32_t id, int32_t a2, SOUNDKITOBJECT* object, SoundK
 
     // TODO
 
+    if (properties->m_fadeInTime >= 0.0f) {
+        sound->SetFadeInTime(properties->m_fadeInTime);
+    }
+
+    if (properties->m_fadeOutTime >= 0.0f) {
+        sound->SetFadeOutTime(properties->m_fadeOutTime);
+    }
+
+    // TODO
+
     sound->CompleteLoad();
 
     // TODO
diff --git a/src/sound/SoundKitProperties.cpp b/src/sound/SoundKitProperties.cpp
index 816e63b..77261da 100644
--- a/src/sound/SoundKitProperties.cpp
+++ b/src/sound/SoundKitProperties.cpp
@@ -8,6 +8,9 @@ void SoundKitProperties::ResetToDefaults() {
 
     // TODO
 
+    this->m_fadeInTime = 0.0f;
+    this->m_fadeOutTime = 0.0f;
+
     this->m_type = 0;
 
     // TODO
diff --git a/src/sound/SoundKitProperties.hpp b/src/sound/SoundKitProperties.hpp
index 1e8d6d8..0efce52 100644
--- a/src/sound/SoundKitProperties.hpp
+++ b/src/sound/SoundKitProperties.hpp
@@ -8,6 +8,9 @@ class SoundKitProperties {
         // Member variables
         uint32_t m_type;
         // TODO
+        float m_fadeInTime;
+        float m_fadeOutTime;
+        // TODO
         int32_t int20;
         uint32_t uint24;
         uint32_t uint28;