diff --git a/src/audio_core/audio_core.cpp b/src/audio_core/audio_core.cpp
index c845330cd4..07a679c32f 100644
--- a/src/audio_core/audio_core.cpp
+++ b/src/audio_core/audio_core.cpp
@@ -8,7 +8,7 @@
 
 namespace AudioCore {
 
-AudioCore::AudioCore(Core::System& system) : audio_manager{std::make_unique<AudioManager>(system)} {
+AudioCore::AudioCore(Core::System& system) : audio_manager{std::make_unique<AudioManager>()} {
     CreateSinks();
     // Must be created after the sinks
     adsp = std::make_unique<AudioRenderer::ADSP::ADSP>(system, *output_sink);
diff --git a/src/audio_core/audio_manager.cpp b/src/audio_core/audio_manager.cpp
index 2f1bba9c3c..2acde668e0 100644
--- a/src/audio_core/audio_manager.cpp
+++ b/src/audio_core/audio_manager.cpp
@@ -1,14 +1,13 @@
 // SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
-#include "audio_core/audio_in_manager.h"
 #include "audio_core/audio_manager.h"
-#include "audio_core/audio_out_manager.h"
 #include "core/core.h"
+#include "core/hle/service/audio/errors.h"
 
 namespace AudioCore {
 
-AudioManager::AudioManager(Core::System& system_) : system{system_} {
+AudioManager::AudioManager() {
     thread = std::jthread([this]() { ThreadFunc(); });
 }
 
@@ -27,7 +26,7 @@ Result AudioManager::SetOutManager(BufferEventFunc buffer_func) {
 
     const auto index{events.GetManagerIndex(Event::Type::AudioOutManager)};
     if (buffer_events[index] == nullptr) {
-        buffer_events[index] = buffer_func;
+        buffer_events[index] = std::move(buffer_func);
         needs_update = true;
         events.SetAudioEvent(Event::Type::AudioOutManager, true);
     }
@@ -43,7 +42,7 @@ Result AudioManager::SetInManager(BufferEventFunc buffer_func) {
 
     const auto index{events.GetManagerIndex(Event::Type::AudioInManager)};
     if (buffer_events[index] == nullptr) {
-        buffer_events[index] = buffer_func;
+        buffer_events[index] = std::move(buffer_func);
         needs_update = true;
         events.SetAudioEvent(Event::Type::AudioInManager, true);
     }
@@ -60,19 +59,21 @@ void AudioManager::ThreadFunc() {
     running = true;
 
     while (running) {
-        auto timed_out{events.Wait(l, std::chrono::seconds(2))};
+        const auto timed_out{events.Wait(l, std::chrono::seconds(2))};
 
         if (events.CheckAudioEventSet(Event::Type::Max)) {
             break;
         }
 
         for (size_t i = 0; i < buffer_events.size(); i++) {
-            if (events.CheckAudioEventSet(Event::Type(i)) || timed_out) {
+            const auto event_type = static_cast<Event::Type>(i);
+
+            if (events.CheckAudioEventSet(event_type) || timed_out) {
                 if (buffer_events[i]) {
                     buffer_events[i]();
                 }
             }
-            events.SetAudioEvent(Event::Type(i), false);
+            events.SetAudioEvent(event_type, false);
         }
     }
 }
diff --git a/src/audio_core/audio_manager.h b/src/audio_core/audio_manager.h
index 8cbd95e22e..abf077de44 100644
--- a/src/audio_core/audio_manager.h
+++ b/src/audio_core/audio_manager.h
@@ -10,22 +10,11 @@
 #include <thread>
 
 #include "audio_core/audio_event.h"
-#include "core/hle/service/audio/errors.h"
 
-namespace Core {
-class System;
-}
+union Result;
 
 namespace AudioCore {
 
-namespace AudioOut {
-class Manager;
-}
-
-namespace AudioIn {
-class Manager;
-}
-
 /**
  * The AudioManager's main purpose is to wait for buffer events for the audio in and out managers,
  * and call an associated callback to release buffers.
@@ -43,7 +32,7 @@ class AudioManager {
     using BufferEventFunc = std::function<void()>;
 
 public:
-    explicit AudioManager(Core::System& system);
+    explicit AudioManager();
 
     /**
      * Shutdown the audio manager.
@@ -80,10 +69,6 @@ private:
      */
     void ThreadFunc();
 
-    /// Core system
-    Core::System& system;
-    /// Have sessions started palying?
-    bool sessions_started{};
     /// Is the main thread running?
     std::atomic<bool> running{};
     /// Unused