diff --git a/Source/Core/Core/HW/AudioInterface.h b/Source/Core/Core/HW/AudioInterface.h
@@ -5,6 +5,8 @@
 
 #pragma once
 
+#include <memory>
+
 #include "Common/CommonTypes.h"
 
 class PointerWrap;
@@ -15,6 +17,23 @@ class Mapping;
 
 namespace AudioInterface
 {
+class AudioInterfaceState
+{
+public:
+  AudioInterfaceState();
+  AudioInterfaceState(const AudioInterfaceState&) = delete;
+  AudioInterfaceState(AudioInterfaceState&&) = delete;
+  AudioInterfaceState& operator=(const AudioInterfaceState&) = delete;
+  AudioInterfaceState& operator=(AudioInterfaceState&&) = delete;
+  ~AudioInterfaceState();
+
+  struct Data;
+  Data& GetData() { return *m_data; }
+
+private:
+  std::unique_ptr<Data> m_data;
+};
+
 void Init();
 void Shutdown();
 void DoState(PointerWrap& p);

diff --git a/Source/Core/Core/System.cpp b/Source/Core/Core/System.cpp
@@ -7,6 +7,7 @@
 
 #include "AudioCommon/SoundStream.h"
 #include "Core/Config/MainSettings.h"
+#include "Core/HW/AudioInterface.h"
 #include "Core/HW/DVD/DVDInterface.h"
 #include "Core/HW/DVD/DVDThread.h"
 
@@ -18,6 +19,7 @@ struct System::Impl
   bool m_sound_stream_running = false;
   bool m_audio_dump_started = false;
 
+  AudioInterface::AudioInterfaceState m_audio_interface_state;
   DVDInterface::DVDInterfaceState m_dvd_interface_state;
   DVDThread::DVDThreadState m_dvd_thread_state;
 };
@@ -64,6 +66,11 @@ void System::SetAudioDumpStarted(bool started)
   m_impl->m_audio_dump_started = started;
 }
 
+AudioInterface::AudioInterfaceState& System::GetAudioInterfaceState() const
+{
+  return m_impl->m_audio_interface_state;
+}
+
 DVDInterface::DVDInterfaceState& System::GetDVDInterfaceState() const
 {
   return m_impl->m_dvd_interface_state;

diff --git a/Source/Core/Core/System.h b/Source/Core/Core/System.h
@@ -7,6 +7,10 @@
 
 class SoundStream;
 
+namespace AudioInterface
+{
+class AudioInterfaceState;
+};
 namespace DVDInterface
 {
 class DVDInterfaceState;
@@ -49,6 +53,7 @@ class System
   bool IsAudioDumpStarted() const;
   void SetAudioDumpStarted(bool started);
 
+  AudioInterface::AudioInterfaceState& GetAudioInterfaceState() const;
   DVDInterface::DVDInterfaceState& GetDVDInterfaceState() const;
   DVDThread::DVDThreadState& GetDVDThreadState() const;