diff --git a/src/sound/SESound.cpp b/src/sound/SESound.cpp
index 78577ec..b02d68a 100644
--- a/src/sound/SESound.cpp
+++ b/src/sound/SESound.cpp
@@ -1,4 +1,5 @@
 #include "sound/SESound.hpp"
+#include "event/Event.hpp"
 #include "console/CVar.hpp"
 #include "util/SFile.hpp"
 #include <storm/Memory.hpp>
@@ -8,6 +9,7 @@
 #define LOG_WRITE(result, ...) \
     SESound::Log_Write(__LINE__, __FILE__, result, __VA_ARGS__);
 
+SCritSect SESound::s_CritSect3;
 int32_t SESound::s_Initialized;
 SCritSect SESound::s_InternalCritSect;
 TSHashTable<SOUND_INTERNAL_LOOKUP, HASHKEY_NONE> SESound::s_InternalLookupTable;
@@ -107,6 +109,30 @@ FMOD::SoundGroup* SESound::CreateSoundGroup(const char* name, int32_t maxAudible
     return group;
 }
 
+int32_t SESound::Heartbeat(const void* data, void* param) {
+    if (!SESound::s_Initialized) {
+        SESound::s_pGameSystem->update();
+
+        return 1;
+    }
+
+    SESound::s_CritSect3.Enter();
+
+    // TODO
+
+    SESound::ProcessLoadedDiskSounds();
+
+    // TODO
+
+    SESound::s_pGameSystem->update();
+
+    // TODO
+
+    SESound::s_CritSect3.Leave();
+
+    return 1;
+}
+
 void SESound::Init(int32_t maxChannels, int32_t* a2, int32_t enableReverb, int32_t enableSoftwareHRTF, int32_t* numChannels, int32_t* outputDriverIndex, const char* outputDriverName, void* a8, int32_t a9) {
     SESound::s_Initialized = 0;
 
@@ -160,7 +186,9 @@ void SESound::Init(int32_t maxChannels, int32_t* a2, int32_t enableReverb, int32
 
     SESound::s_pGameSystem->setOutput(FMOD_OUTPUTTYPE_AUTODETECT);
 
-    // TODO
+    // Register heartbeat
+
+    EventRegister(EVENT_ID_POLL, &SESound::Heartbeat);
 
     // Get FMOD version
 
@@ -370,6 +398,10 @@ void SESound::Log_Write(int32_t line, const char* file, FMOD_RESULT result, cons
     // TODO
 }
 
+void SESound::ProcessLoadedDiskSounds() {
+    // TODO
+}
+
 void SESound::CompleteLoad() {
     if (!this->m_internal) {
         return;
diff --git a/src/sound/SESound.hpp b/src/sound/SESound.hpp
index b47fb23..feb6438 100644
--- a/src/sound/SESound.hpp
+++ b/src/sound/SESound.hpp
@@ -14,6 +14,7 @@ struct SOUND_INTERNAL_LOOKUP : TSHashObject<SOUND_INTERNAL_LOOKUP, HASHKEY_NONE>
 class SESound {
     public:
         // Public static variables
+        static SCritSect s_CritSect3;
         static int32_t s_Initialized;
         static SCritSect s_InternalCritSect;
         static TSHashTable<SOUND_INTERNAL_LOOKUP, HASHKEY_NONE> s_InternalLookupTable;
@@ -24,6 +25,7 @@ class SESound {
 
         // Public static functions
         static FMOD::SoundGroup* CreateSoundGroup(const char* name, int32_t maxAudible);
+        static int32_t Heartbeat(const void* data, void* param);
         static void Init(int32_t maxChannels, int32_t (*a2), int32_t enableReverb, int32_t enableSoftwareHRTF, int32_t* numChannels, int32_t* outputDriverIndex, const char* outputDriverName, void (*a8), int32_t a9);
         static int32_t IsInitialized();
         static void Log_Write(int32_t line, const char* file, FMOD_RESULT result, const char* fmt, ...);
@@ -35,6 +37,7 @@ class SESound {
     private:
         // Private static functions
         static int32_t LoadDiskSound(FMOD::System* fmodSystem, const char* filename, FMOD_MODE fmodMode, SESound* sound, FMOD::SoundGroup* fmodSoundGroup1, FMOD::SoundGroup* fmodSoundGroup2, bool a7, int32_t a8, uint32_t a9, int32_t a10, uint32_t decodeBufferSize, int32_t a12, float a13, float a14, float a15, float* a16);
+        static void ProcessLoadedDiskSounds();
 
         // Private member variables
         SESoundInternal* m_internal = nullptr;