diff --git a/.vscode/configurations/windows-docker/tasks.json b/.vscode/configurations/windows-docker/tasks.json
index cb6dd5c..c6ca333 100644
--- a/.vscode/configurations/windows-docker/tasks.json
+++ b/.vscode/configurations/windows-docker/tasks.json
@@ -44,6 +44,14 @@
             },
             "command": "./run.ps1"
         },
+        {
+            "type": "shell",
+            "label": "Convert WAV to ADPCM",
+            "dependsOn": [
+                "1. Copy source code to docker volume"
+            ],
+            "command": "docker exec -t tyra-compiler sh -c 'adpenc ${input:wav2adpcmSource} ${input:wav2adpcmTarget} && rsync -zac /src/${input:wav2adpcmTarget} /host/${input:wav2adpcmTarget}'"
+        },
         {
             "type": "shell",
             "label": "Cleanup",
@@ -78,6 +86,18 @@
         }
     ],
     "inputs": [
+        {
+            "id": "wav2adpcmSource",
+            "description": "Source file path (ex. ):",
+            "default": "demo/res/sound.wav",
+            "type": "promptString"
+        },
+        {
+            "id": "wav2adpcmTarget",
+            "description": "Target file path (ex. ):",
+            "default": "demo/res/sound.adpcm",
+            "type": "promptString"
+        },
         {
             "id": "ps2Ip",
             "description": "PS2link ip address:",
diff --git a/ROADMAP.txt b/ROADMAP.txt
index ece3ef4..ae9a9cf 100644
--- a/ROADMAP.txt
+++ b/ROADMAP.txt
@@ -1,11 +1,7 @@
 ------------ Tyra's v2.0 roadmap to publish on GitHub ------------
 
 - [Demo] Game fadein
-- [Demo] Larger map
-- [Demo] Height map
 - [Demo] Ambient sound
-- [Demo] Shoot sound
-- [Demo] Shoot animation
 - [Demo] Running soldier
 - [Demo] Heightmap for soldier
 - [Demo] Running animation for soldier
diff --git a/demo/inc/states/game/player/weapon.hpp b/demo/inc/states/game/player/weapon.hpp
index ed6f830..f223938 100644
--- a/demo/inc/states/game/player/weapon.hpp
+++ b/demo/inc/states/game/player/weapon.hpp
@@ -13,28 +13,46 @@
 #include <renderer/3d/mesh/static/static_mesh.hpp>
 #include <renderer/3d/pipeline/static/stapip_options.hpp>
 #include <renderer/renderer.hpp>
+#include <engine.hpp>
+#include <pad/pad.hpp>
+#include <audio/audio.hpp>
+#include <time/timer.hpp>
 
+using Tyra::Audio;
+using Tyra::Engine;
+using Tyra::Pad;
 using Tyra::Renderer;
 using Tyra::StaPipOptions;
 using Tyra::StaticMesh;
 using Tyra::TextureRepository;
+using Tyra::Timer;
 using Tyra::Vec4;
 
 namespace Demo {
 
 class Weapon {
  public:
-  Weapon(TextureRepository* repo);
+  Weapon(Engine* engine);
   ~Weapon();
 
   StaticMesh* mesh;
   StaPipOptions* options;
 
   void update();
-  // void debugPosition(Pad* pad);
 
  private:
+  bool isShootAnimation1, isShootAnimation2;
+  Pad* pad;
+  Audio* audio;
+  Timer shootTimer;
+  Vec4 initialPosition;
+  u8 adpcmCurrentChannel;
+  u8 adpcmChannelsCount;
+
+  audsrv_adpcm_t* shootAdpcm;
+
   void allocateOptions();
+  u8 getShootChannel();
 };
 
 }  // namespace Demo
diff --git a/demo/src/states/game/enemy/enemy.cpp b/demo/src/states/game/enemy/enemy.cpp
index 83ccd0b..fb70b1c 100644
--- a/demo/src/states/game/enemy/enemy.cpp
+++ b/demo/src/states/game/enemy/enemy.cpp
@@ -19,31 +19,32 @@ using Tyra::ObjLoaderOptions;
 namespace Demo {
 
 Enemy::Enemy(TextureRepository* repo) {
-  ObjLoader loader;
+  // ObjLoader loader;
 
-  ObjLoaderOptions objOptions;
-  objOptions.animation.count = 4;
-  objOptions.flipUVs = true;
-  objOptions.scale = 25.0F;
+  // ObjLoaderOptions objOptions;
+  // objOptions.animation.count = 4;
+  // objOptions.flipUVs = true;
+  // objOptions.scale = 35.0F;
 
-  auto* bodyData = loader.load(
-      FileUtils::fromCwd("game/models/soldier/soldier.obj"), objOptions);
-  bodyData->normalsEnabled = false;
-  bodyMesh = new DynamicMesh(*bodyData);
+  // auto* bodyData = loader.load(
+  //     FileUtils::fromCwd("game/models/soldier/soldier.obj"), objOptions);
+  // bodyData->normalsEnabled = false;
+  // bodyMesh = new DynamicMesh(*bodyData);
 
-  delete bodyData;
+  // delete bodyData;
 
-  bodyMesh->playAnimation(0, bodyMesh->frames.size() - 1);
-  bodyMesh->setAnimSpeed(0.1F);
+  // bodyMesh->playAnimation(0, bodyMesh->frames.size() - 1);
+  // bodyMesh->setAnimSpeed(0.1F);
 
-  repo->addByMesh(bodyMesh, FileUtils::fromCwd("game/models/soldier/"), "png");
+  // repo->addByMesh(bodyMesh, FileUtils::fromCwd("game/models/soldier/"),
+  // "png");
 
-  bodyMesh->translation.translateY(-5.0F);
+  // bodyMesh->translation.translateY(-5.0F);
 
-  allocateOptions();
+  // allocateOptions();
 
-  pairs.push_back(new RendererDynamicPair{bodyMesh, options});
-  // pairs.push_back(new RendererDynamicPair{gunMesh, options});
+  // pairs.push_back(new RendererDynamicPair{bodyMesh, options});
+  // // pairs.push_back(new RendererDynamicPair{gunMesh, options});
 }
 
 Enemy::~Enemy() {
@@ -55,7 +56,9 @@ Enemy::~Enemy() {
   }
 }
 
-void Enemy::update(const Vec4& playerPosition) { bodyMesh->animate(); }
+void Enemy::update(const Vec4& playerPosition) {
+  // bodyMesh->animate();
+}
 
 void Enemy::allocateOptions() { options = new DynPipOptions(); }
 
diff --git a/demo/src/states/game/game_state.cpp b/demo/src/states/game/game_state.cpp
index 3651737..e1faa9d 100644
--- a/demo/src/states/game/game_state.cpp
+++ b/demo/src/states/game/game_state.cpp
@@ -26,7 +26,7 @@ GameState::~GameState() {}
 void GameState::onStart() {
   TYRA_LOG("Game. RAM: ", engine->info.getAvailableRAM(), "MB");
 
-  engine->audio.stopSong();
+  engine->audio.song.stop();
 
   auto* repository = &engine->renderer.core.texture.repository;
   player = new Player(engine);
@@ -62,7 +62,8 @@ void GameState::update() {
   engine->renderer.beginFrame(cameraInfo);
 
   dbgObj->setPosition(*cameraInfo.looksAt);
-  float terrainHeight = terrain->getHeightOffset(player->getPosition());
+  float terrainHeight = 0.0F;
+  // float terrainHeight = terrain->getHeightOffset(player->getPosition());
   player->update(terrainHeight);
   enemy->update(player->getPosition());
 
@@ -70,8 +71,8 @@ void GameState::update() {
   {
     renderer.add(skybox->pair);
     renderer.add(player->pair);
-    renderer.add(enemy->pairs);
-    renderer.add(terrain->pair);
+    // renderer.add(enemy->pairs);
+    // renderer.add(terrain->pair);
     renderer.add(dbgObj->pair);
   }
   renderer.render();
diff --git a/demo/src/states/game/player/camera.cpp b/demo/src/states/game/player/camera.cpp
index 469375f..8f72ee1 100644
--- a/demo/src/states/game/player/camera.cpp
+++ b/demo/src/states/game/player/camera.cpp
@@ -22,7 +22,7 @@ Camera::Camera(Pad* t_pad) : lookAt(0.0F), position(0.0F), pad(t_pad) {
 Camera::~Camera() {}
 
 void Camera::update(const Vec4& playerPosition, const float& terrainHeight) {
-  const float rotationOffset = 0.03F;
+  const float rotationOffset = 0.045F;
   const float heightOffset = 0.5F;
 
   const auto& rightJoy = pad->getRightJoyPad();
diff --git a/demo/src/states/game/player/player.cpp b/demo/src/states/game/player/player.cpp
index 00ea613..35d365c 100644
--- a/demo/src/states/game/player/player.cpp
+++ b/demo/src/states/game/player/player.cpp
@@ -13,14 +13,12 @@
 namespace Demo {
 
 Player::Player(Engine* engine)
-    : position(0.0F),
-      weapon(&engine->renderer.core.texture.repository),
-      camera(&engine->pad) {
+    : position(0.0F), weapon(engine), camera(&engine->pad) {
   pair = new RendererStaticPair{weapon.mesh, weapon.options};
   pad = &engine->pad;
   position = Vec4(3.0F, 50.0F, 0.0F);
   camera.lookAt = Vec4(0.0F, 0.0F, -30.0F);
-  speed = 2.0F;
+  speed = 3.5F;
 }
 
 Player::~Player() { delete pair; }
@@ -39,7 +37,7 @@ void Player::handlePlayerPosition(const float& terrainHeight) {
   normalizedCamera *= speed;
 
   Vec4 nextPosition(position);
-  nextPosition.y = terrainHeight;
+  nextPosition.y = terrainHeight - 100.0F;
 
   if (leftJoy.v <= 100) {
     nextPosition.x += normalizedCamera.x;
diff --git a/demo/src/states/game/player/weapon.cpp b/demo/src/states/game/player/weapon.cpp
index 011abf5..da9687f 100644
--- a/demo/src/states/game/player/weapon.cpp
+++ b/demo/src/states/game/player/weapon.cpp
@@ -18,13 +18,16 @@ using Tyra::ObjLoaderOptions;
 
 namespace Demo {
 
-Weapon::Weapon(TextureRepository* repo) {
+Weapon::Weapon(Engine* engine) {
   ObjLoader loader;
 
   ObjLoaderOptions objOptions;
   objOptions.flipUVs = true;
   objOptions.scale = .5F;
 
+  pad = &engine->pad;
+  audio = &engine->audio;
+  auto* repo = &engine->renderer.core.texture.repository;
   auto* data =
       loader.load(FileUtils::fromCwd("game/models/ak47/ak47.obj"), objOptions);
   data->normalsEnabled = false;
@@ -42,10 +45,75 @@ Weapon::Weapon(TextureRepository* repo) {
 
   repo->addByMesh(mesh, FileUtils::fromCwd("game/models/ak47/"), "png");
 
+  initialPosition = *mesh->getPosition();
+
   allocateOptions();
+
+  shootAdpcm =
+      audio->adpcm.load(FileUtils::fromCwd("game/models/ak47/ak47.adpcm"));
+
+  isShootAnimation1 = isShootAnimation2 = false;
+
+  adpcmChannelsCount = 8;
+  adpcmCurrentChannel = 0;
+
+  const u8 shootVolume = 40;
+  for (u8 i = 0; i < adpcmChannelsCount; i++) {
+    audio->adpcm.setVolume(shootVolume, i);
+  }
 }
 
-void Weapon::update() {}
+Weapon::~Weapon() {
+  delete mesh;
+  delete options;
+  delete shootAdpcm;
+}
+
+u8 Weapon::getShootChannel() {
+  auto result = adpcmCurrentChannel++;
+
+  if (adpcmCurrentChannel >= adpcmChannelsCount) {
+    adpcmCurrentChannel = 0;
+  }
+  return result;
+}
+
+void Weapon::update() {
+  if (!isShootAnimation1 && !isShootAnimation2 && pad->getPressed().Cross) {
+    shootTimer.prime();
+    audio->adpcm.tryPlay(shootAdpcm, getShootChannel());
+    isShootAnimation1 = true;
+  }
+
+  auto* position = mesh->getPosition();
+
+  const float recoil = 0.5F;
+  const float speed = 500;
+
+  if (isShootAnimation1) {
+    position->z += recoil;
+    position->y -= recoil / 4;
+    if (shootTimer.getTimeDelta() > speed) {
+      isShootAnimation1 = false;
+      shootTimer.prime();
+      isShootAnimation2 = true;
+    }
+  }
+
+  if (isShootAnimation2) {
+    position->z -= recoil / 2;
+    position->y += recoil / 8;
+    if (shootTimer.getTimeDelta() > speed * 2) {
+      isShootAnimation2 = false;
+      *position = initialPosition;
+      if (pad->getPressed().Cross) {
+        shootTimer.prime();
+        audio->adpcm.tryPlay(shootAdpcm, getShootChannel());
+        isShootAnimation1 = true;
+      }
+    }
+  }
+}
 
 // float tX = 0.0F;
 // float tY = -3.0F;
@@ -100,11 +168,6 @@ void Weapon::update() {}
 //   TYRA_LOG("tX: ", tX, " tY: ", tY, " tZ: ", tZ, " rY: ", rY, " rZ: ", rZ);
 // }
 
-Weapon::~Weapon() {
-  delete mesh;
-  delete options;
-}
-
 void Weapon::allocateOptions() {
   options = new StaPipOptions();
   options->textureMappingType = Tyra::TyraNearest;
diff --git a/demo/src/states/game/terrain/terrain.cpp b/demo/src/states/game/terrain/terrain.cpp
index 0fae8e7..df6f132 100644
--- a/demo/src/states/game/terrain/terrain.cpp
+++ b/demo/src/states/game/terrain/terrain.cpp
@@ -18,29 +18,29 @@ using Tyra::ObjLoaderOptions;
 
 namespace Demo {
 Terrain::Terrain(TextureRepository* repo)
-    : heightmap(-5.0F,                               // Min height
-                100.0F,                              // Max height
-                Vec4(-196.6F, 0.0F, -412.0F, 1.0F),  // Left up
-                Vec4(286.0F, 0.0F, 443.3F, 1.0F)     // Right down
+    : heightmap(-5.0F,                                // Min height
+                450.0F,                               // Max height
+                Vec4(-784.6F, 0.0F, -1648.0F, 1.0F),  // Left up
+                Vec4(1144.0F, 0.0F, 1772.3F, 1.0F)    // Right down
       ) {
-  ObjLoader loader;
+  // ObjLoader loader;
 
-  ObjLoaderOptions objOptions;
-  objOptions.flipUVs = true;
-  objOptions.scale = 25.0F;
+  // ObjLoaderOptions objOptions;
+  // objOptions.flipUVs = true;
+  // objOptions.scale = 100.0F;
 
-  auto* data = loader.load(
-      FileUtils::fromCwd("game/models/terrain/terrain.obj"), objOptions);
-  data->normalsEnabled = false;
-  mesh = new StaticMesh(*data);
+  // auto* data = loader.load(
+  //     FileUtils::fromCwd("game/models/terrain/terrain.obj"), objOptions);
+  // data->normalsEnabled = false;
+  // mesh = new StaticMesh(*data);
 
-  delete data;
+  // delete data;
 
-  repo->addByMesh(mesh, FileUtils::fromCwd("game/models/terrain/"), "png");
+  // repo->addByMesh(mesh, FileUtils::fromCwd("game/models/terrain/"), "png");
 
-  allocateOptions();
+  // allocateOptions();
 
-  pair = new RendererStaticPair{mesh, options};
+  // pair = new RendererStaticPair{mesh, options};
 }
 
 float Terrain::getHeightOffset(const Vec4& playerPosition) {
diff --git a/demo/src/states/intro/intro_state.cpp b/demo/src/states/intro/intro_state.cpp
index e75a749..25e35ea 100644
--- a/demo/src/states/intro/intro_state.cpp
+++ b/demo/src/states/intro/intro_state.cpp
@@ -32,10 +32,10 @@ IntroState::~IntroState() {}
 void IntroState::onStart() {
   TYRA_LOG("Intro. RAM: ", engine->info.getAvailableRAM(), "MB");
 
-  engine->audio.loadSong(FileUtils::fromCwd("intro/intro.wav"));
-  engine->audio.setSongLoop(false);
-  engine->audio.setSongVolume(80);
-  engine->audio.playSong();
+  engine->audio.song.load(FileUtils::fromCwd("intro/intro.wav"));
+  engine->audio.song.inLoop = false;
+  engine->audio.song.setVolume(80);
+  engine->audio.song.play();
 
   stateManager.add(new IntroPs2DevState(engine));
   stateManager.add(new IntroTyraState(engine));
diff --git a/engine/inc/audio/adpcm_result.hpp b/engine/inc/audio/adpcm_result.hpp
new file mode 100644
index 0000000..7505c69
--- /dev/null
+++ b/engine/inc/audio/adpcm_result.hpp
@@ -0,0 +1,28 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022-2022, Tyra - https://github.com/h4570/tyrav2
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Wellinator Carvalho <wellcoj@gmail.com>
+*/
+
+#pragma once
+
+namespace Tyra {
+
+enum AdpcmResult {
+  ADPCM_OK,
+
+  /** When provided channel by user is currently in use */
+  ADPCM_CHANNEL_USED,
+
+  /** When user did not provided channel and all are in use */
+  ADPCM_NO_FREE_CHANNELS,
+
+  ADPCM_ERROR
+};
+
+}  // namespace Tyra
diff --git a/engine/inc/audio/audio.hpp b/engine/inc/audio/audio.hpp
index 9229c3d..68c39b3 100644
--- a/engine/inc/audio/audio.hpp
+++ b/engine/inc/audio/audio.hpp
@@ -11,151 +11,30 @@
 
 #pragma once
 
-#include "./audio_listener.hpp"
-#include <audsrv.h>
-#include <string>
+#include "./audio_adpcm.hpp"
+#include "./audio_song.hpp"
 
 namespace Tyra {
 
-struct AudioListenerRef {
-  AudioListener* listener;
-  u32 id;
-};
-
-/**
- * Class responsible for audio playing.
- * There are two main features:
- * - WAV song (background music)
- * - ADPCM samples
- */
+/** Class responsible for audio. */
 class Audio {
  public:
-  /** Constructor is called by the engine. */
   Audio();
   ~Audio();
 
   void init();
 
-  /**
-   * Load 24bit 22kHz Stereo WAV.
-   * Can be used multiple times for song switching.
-   * @param t_path Example: "host:song.wav" or "host:folder/song.wav"
-   */
-  void loadSong(const char* t_path);
-
-  /**
-   * Load 24bit 22kHz Stereo WAV.
-   * Can be used multiple times for song switching.
-   * @param t_path Example: "host:song.wav" or "host:folder/song.wav"
-   */
-  inline void loadSong(const std::string& t_path) { loadSong(t_path.c_str()); }
-
-  void playSong();
-
-  void stopSong();
-
-  const u8& isSongPlaying() const { return songPlaying; }
-
-  const u8& isSongLoaded() const { return songLoaded; }
-
-  /**
-   * Set song loop/noloop.
-   * @returns Looping state is  0 - noloop / 1 - loop
-   */
-  const u8& isSongInLoop() const { return songInLoop; }
-
-  /**
-   * Set song loop/noloop.
-   * @param t_set false - noloop, true - loop
-   */
-  void setSongLoop(const u8& t_set) { songInLoop = t_set; }
-
-  const u8& getVolume() const { return tyraVolume; }
-
-  /**
-   * Set song volume.
-   * @param t_vol Value 0-100
-   */
-  void setSongVolume(const u8& t_vol);
-
-  /**
-   * If you want to synchronize some actions with
-   * background song, add audio listener.
-   * @returns Listener id.
-   */
-  u32 addSongListener(AudioListener* t_listener);
-
-  /** Remove song listener. */
-  void removeSongListener(const u32& t_id);
-
-  /**
-   * Load ADPCM sample.
-   * ADPCM sample is an output from "Convert WAV to ADPCM" task (adpenc tool).
-   * Adpenc expects 22kHz 16bit file.
-   * @param t_path Example: "host:hit.adpcm" or "host:folder/jump.adpcm"
-   */
-  audsrv_adpcm_t* loadADPCM(const char* t_path);
-
-  /**
-   * Load ADPCM sample.
-   * ADPCM sample is an output from "Convert WAV to ADPCM" task (adpenc tool).
-   * Adpenc expects 22kHz 16bit file.
-   * @param t_path Example: "host:hit.adpcm" or "host:folder/jump.adpcm"
-   */
-  inline audsrv_adpcm_t* loadADPCM(const std::string& t_path) {
-    return loadADPCM(t_path.c_str());
-  }
-
-  /**
-   * Play ADPCM sample.
-   * ADPCM sample can't be stopped.
-   * @param t_adpcm ADPCM data, created by loadADPCM();
-   */
-  void playADPCM(audsrv_adpcm_t* t_adpcm);
-
-  /**
-   * Play ADPCM sample.
-   * ADPCM sample can't be stopped.
-   * @param t_adpcm ADPCM data, created by loadADPCM();
-   * @param t_ch Channel (0-23). Type -1 for use any free channel.
-   */
-  void playADPCM(audsrv_adpcm_t* t_adpcm, const s8& t_ch);
-
-  /**
-   * Set ADPCM volume.
-   * @param t_vol Value 0-100
-   * @param t_ch Channel (0-23)
-   */
-  void setADPCMVolume(const u8& t_vol, const s8& t_ch) {
-    audsrv_adpcm_set_volume(t_ch, t_vol);
-  }
+  AudioSong song;
+  AudioAdpcm adpcm;
 
   void work();
 
  private:
-  u8 songLoaded, tyraVolume, audsrvVolume, songPlaying, songInLoop,
-      songFinished;
-  FILE* wav;
-  audsrv_fmt_t format;
-  std::vector<AudioListenerRef*> songListeners;
-
   ee_thread_t thread;
   int threadId;
   static const u16 threadStackSize;
   u8* threadStack;
 
-  ee_sema_t sema;
-  s32 fillbufferSema;
-  static const u16 chunkSize;
-  char* chunk;
-  s32 chunkReadStatus;
-
-  void setSongFormat();
-  void unloadSong();
-  void rewindSongToStart();
-  u32 getSongListenersCount() const { return songListeners.size(); }
-
-  void initSema();
   void initAUDSRV();
   void initThread();
 };
diff --git a/engine/inc/audio/audio_adpcm.hpp b/engine/inc/audio/audio_adpcm.hpp
new file mode 100644
index 0000000..ea2091a
--- /dev/null
+++ b/engine/inc/audio/audio_adpcm.hpp
@@ -0,0 +1,77 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022-2022, Tyra - https://github.com/h4570/tyrav2
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Wellinator Carvalho <wellcoj@gmail.com>
+*/
+
+#pragma once
+
+#include "./audio_listener_ref.hpp"
+#include "./adpcm_result.hpp"
+#include <audsrv.h>
+#include <string>
+
+namespace Tyra {
+
+/**
+ * Class responsible for playing ADPCM samples.
+ * ADPCM sample can't be stopped.
+ */
+class AudioAdpcm {
+ public:
+  AudioAdpcm();
+  ~AudioAdpcm();
+
+  void init();
+
+  /**
+   * Load ADPCM sample.
+   * ADPCM sample is an output from "Convert WAV to ADPCM" task (adpenc tool).
+   * Adpenc expects 22kHz 16bit file.
+   * @param t_path Example: "host:hit.adpcm" or "host:folder/jump.adpcm"
+   */
+  audsrv_adpcm_t* load(const char* t_path);
+  audsrv_adpcm_t* load(const std::string& t_path);
+
+  /**
+   * Frees up all memory taken by samples, and stops all voices from
+   * being played.
+   */
+  void reset();
+
+  /**
+   * Try play ADPCM sample if channel(s) is not occupied.
+   * @param t_adpcm ADPCM data, created by load();
+   * @param t_ch Channel (0-23). Type -1 for use any free channel.
+   */
+  AdpcmResult tryPlay(audsrv_adpcm_t* t_adpcm);
+  AdpcmResult tryPlay(audsrv_adpcm_t* t_adpcm, const s8& t_ch);
+
+  /**
+   * Play ADPCM sample, if channel is occupied, wait for it.
+   * If not used properly, can hugely reduce performance.
+   * @param t_adpcm ADPCM data, created by load();
+   * @param t_ch Channel (0-23). Type -1 for use any free channel.
+   */
+  void playWait(audsrv_adpcm_t* t_adpcm);
+  void playWait(audsrv_adpcm_t* t_adpcm, const s8& t_ch);
+
+  /**
+   * Set ADPCM volume.
+   * @param t_vol Value 0-100
+   * @param t_ch Channel (0-23)
+   */
+  void setVolume(const u8& t_vol, const s8& t_ch) {
+    audsrv_adpcm_set_volume(t_ch, t_vol);
+  }
+
+ private:
+  void initAUDSRV();
+};
+
+}  // namespace Tyra
diff --git a/engine/inc/audio/audio_listener_ref.hpp b/engine/inc/audio/audio_listener_ref.hpp
new file mode 100644
index 0000000..0b25f05
--- /dev/null
+++ b/engine/inc/audio/audio_listener_ref.hpp
@@ -0,0 +1,24 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022-2022, Tyra - https://github.com/h4570/tyrav2
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Wellinator Carvalho <wellcoj@gmail.com>
+*/
+
+#pragma once
+
+#include "./audio_listener.hpp"
+#include <tamtypes.h>
+
+namespace Tyra {
+
+struct AudioListenerRef {
+  AudioListener* listener;
+  u32 id;
+};
+
+}  // namespace Tyra
diff --git a/engine/inc/audio/audio_song.hpp b/engine/inc/audio/audio_song.hpp
new file mode 100644
index 0000000..b5f4349
--- /dev/null
+++ b/engine/inc/audio/audio_song.hpp
@@ -0,0 +1,90 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022-2022, Tyra - https://github.com/h4570/tyrav2
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Wellinator Carvalho <wellcoj@gmail.com>
+*/
+
+#pragma once
+
+#include "./audio_listener_ref.hpp"
+#include <audsrv.h>
+#include <string>
+#include <vector>
+#include <kernel.h>
+
+namespace Tyra {
+
+/** Class responsible for background audio playing. */
+class AudioSong {
+ public:
+  AudioSong();
+  ~AudioSong();
+
+  void init();
+
+  bool inLoop;
+
+  /**
+   * Load 24bit 22kHz Stereo WAV.
+   * Can be used multiple times for song switching.
+   * @param t_path Example: "host:song.wav" or "host:folder/song.wav"
+   */
+  void load(const char* t_path);
+  void load(const std::string& t_path);
+
+  void play();
+
+  void stop();
+
+  const bool& isPlaying() const;
+
+  const bool& isLoaded() const;
+
+  const u8& getVolume() const;
+
+  /**
+   * Set song volume.
+   * @param t_vol Value 0-100
+   */
+  void setVolume(const u8& t_vol);
+
+  /**
+   * If you want to synchronize some actions with
+   * background song, add audio listener.
+   * @returns Listener id.
+   */
+  u32 addListener(AudioListener* t_listener);
+
+  /** Remove song listener. */
+  void removeListener(const u32& t_id);
+
+  std::size_t getListenersCount() const;
+
+  void work();
+
+ private:
+  bool songLoaded, songPlaying, songFinished;
+  u8 tyraVolume, audsrvVolume;
+  FILE* wav;
+  audsrv_fmt_t format;
+  std::vector<AudioListenerRef*> songListeners;
+
+  ee_sema_t sema;
+  s32 fillbufferSema;
+  static const u16 chunkSize;
+  char* chunk;
+  s32 chunkReadStatus;
+
+  void initSema();
+  void initAUDSRV();
+  void setSongFormat();
+  void unloadSong();
+  void rewindSongToStart();
+};
+
+}  // namespace Tyra
diff --git a/engine/src/audio/audio.cpp b/engine/src/audio/audio.cpp
index 7bc527f..0328a24 100644
--- a/engine/src/audio/audio.cpp
+++ b/engine/src/audio/audio.cpp
@@ -9,20 +9,11 @@
 # Sandro Sobczyński <sandro.sobczynski@gmail.com>
 */
 
-#include "debug/debug.hpp"
-#include <tamtypes.h>
-#include <vector>
-#include <stdio.h>
-#include <malloc.h>
-#include <kernel.h>
-#include <cstdlib>
-#include <loadfile.h>
-#include <sifrpc.h>
-#include <sbv_patches.h>
-#include <audsrv.h>
-#include <string.h>
-#include "thread/threading.hpp"
 #include "audio/audio.hpp"
+#include "debug/debug.hpp"
+#include "thread/threading.hpp"
+#include <kernel.h>
+#include <malloc.h>
 
 extern void* _gp;
 
@@ -32,94 +23,32 @@ void audioThread(Tyra::Audio* audio) {
 
 namespace Tyra {
 
-const u16 Audio::chunkSize = 4 * 1024;
 const u16 Audio::threadStackSize = 2 * 1024;
 
 Audio::Audio() {
-  chunkReadStatus = 0;
-  tyraVolume = 0;
-  audsrvVolume = 0;
-
-  songLoaded = false;
-  songPlaying = false;
-  songInLoop = false;
-  songFinished = false;
-
-  chunk = nullptr;
-  threadStack = nullptr;
+  threadStack = static_cast<u8*>(memalign(sizeof(u8), threadStackSize));
 }
 
 Audio::~Audio() {
-  if (chunk) delete[] chunk;
   if (threadStack) delete[] threadStack;
 }
 
 void Audio::init() {
-  chunk = static_cast<char*>(memalign(sizeof(char), chunkSize));
-  threadStack = static_cast<u8*>(memalign(sizeof(u8), threadStackSize));
-
-  initSema();
   initAUDSRV();
-  setSongFormat();
+
+  song.init();
+  adpcm.init();
+
   initThread();
+
+  TYRA_LOG("Audio initialized!");
 }
 
-void Audio::loadSong(const char* t_path) {
-  if (songLoaded) unloadSong();
-  wav = fopen(t_path, "rb");
-  TYRA_ASSERT(wav != NULL, "Failed to open wav file!");
-  rewindSongToStart();
-  songLoaded = true;
-  TYRA_LOG("Song loaded!");
-}
-
-void Audio::playSong() {
-  TYRA_ASSERT(songLoaded, "Cant play song because was not loaded!");
-  if (songFinished) rewindSongToStart();
-  tyraVolume = audsrvVolume;
-  audsrv_set_volume(tyraVolume);
-  songPlaying = true;
-}
-
-void Audio::stopSong() {
-  tyraVolume = 0;
-  audsrv_set_volume(tyraVolume);
-  songPlaying = false;
-}
-
-/**
- * Initialize AUDSRV main and ADPCM module.
- * Install AUDSRV callback.
- */
 void Audio::initAUDSRV() {
-  TYRA_LOG("Initializing AUDSRV");
-
   int ret = audsrv_init();
+
   TYRA_ASSERT(ret >= 0,
               "AUDSRV returned error string: ", audsrv_get_error_string());
-
-  ret = audsrv_adpcm_init();
-  TYRA_ASSERT(ret >= 0,
-              "AUDSRV returned error string: ", audsrv_get_error_string());
-
-  ret = audsrv_on_fillbuf(chunkSize, (audsrv_callback_t)iSignalSema,
-                          (void*)fillbufferSema);
-
-  TYRA_ASSERT(ret >= 0,
-              "AUDSRV returned error string:", audsrv_get_error_string());
-
-  TYRA_LOG("AUDSRV initialized!");
-}
-
-/** Initialize semaphore which will wait until chunk of the song is not
- * finished. */
-void Audio::initSema() {
-  TYRA_LOG("Creating audio semaphore");
-  sema.init_count = 0;
-  sema.max_count = 1;
-  sema.option = 0;
-  fillbufferSema = CreateSema(&sema);
-  TYRA_LOG("Audio semaphore created");
 }
 
 void Audio::initThread() {
@@ -133,120 +62,10 @@ void Audio::initThread() {
   StartThread(threadId, this);
 }
 
-/**
- * Close file.
- * Delete song path from memory.
- */
-void Audio::unloadSong() {
-  songLoaded = false;
-  fclose(wav);
-}
-
-/** Fseek on wav. */
-void Audio::rewindSongToStart() {
-  if (wav != NULL) fseek(wav, 0x30, SEEK_SET);
-  chunkReadStatus = 0;
-  songFinished = false;
-}
-
-/** Set WAV format to 16bit, 22050Hz, stereo. */
-void Audio::setSongFormat() {
-  format.bits = 16;
-  format.freq = 22050;
-  format.channels = 2;
-  audsrv_set_format(&format);
-}
-
-void Audio::setSongVolume(const u8& t_vol) {
-  audsrvVolume = t_vol;
-  if (songPlaying) tyraVolume = t_vol;
-  audsrv_set_volume(tyraVolume);
-}
-
 void Audio::work() {
   Threading::switchThread();
 
-  if (!songPlaying || !songLoaded) return;
-  if (songFinished) {
-    TYRA_LOG("Audio: Song finished. ");
-    if (songInLoop) {
-      TYRA_LOG("Running again.");
-      for (u32 i = 0; i < getSongListenersCount(); i++)
-        songListeners[i]->listener->onAudioFinish();
-      rewindSongToStart();
-    } else {
-      TYRA_LOG("Stopping song.");
-      stopSong();
-      return;
-    }
-  }
-
-  if (chunkReadStatus > 0) {
-    WaitSema(fillbufferSema);  // wait until previous chunk wasn't finished
-    audsrv_play_audio(chunk, chunkReadStatus);
-    for (u32 i = 0; i < getSongListenersCount(); i++)
-      songListeners[i]->listener->onAudioTick();
-  }
-
-  chunkReadStatus = fread(chunk, 1, chunkSize, wav);
-
-  if (chunkReadStatus < (s32)chunkSize) songFinished = true;
-}
-
-u32 Audio::addSongListener(AudioListener* t_listener) {
-  AudioListenerRef* ref = new AudioListenerRef;
-  ref->id = rand() % 1000000;
-  ref->listener = t_listener;
-  songListeners.push_back(ref);
-  return ref->id;
-}
-
-void Audio::removeSongListener(const u32& t_id) {
-  s32 index = -1;
-  for (u32 i = 0; i < songListeners.size(); i++)
-    if (songListeners[i]->id == t_id) {
-      index = i;
-      break;
-    }
-  TYRA_ASSERT(index != -1,
-              "Cant remove listener because given id was not found!");
-  delete songListeners[index];
-  songListeners.erase(songListeners.begin() + index);
-}
-
-audsrv_adpcm_t* Audio::loadADPCM(const char* t_path) {
-  FILE* file = fopen(t_path, "rb");
-  fseek(file, 0, SEEK_END);
-  u32 adpcmFileSize = ftell(file);
-  u8 data[adpcmFileSize];
-  rewind(file);
-  fread(data, sizeof(u8), adpcmFileSize, file);
-  auto* result = new audsrv_adpcm_t();
-  result->size = 0;
-  result->buffer = 0;
-  result->loop = 0;
-  result->pitch = 0;
-  result->channels = 0;
-  if (audsrv_load_adpcm(result, data, adpcmFileSize)) {
-    TYRA_LOG("AUDSRV returned error string: ", audsrv_get_error_string());
-    TYRA_TRAP("audsrv_load_adpcm() failed!");
-  }
-  fclose(file);
-  return result;
-}
-
-void Audio::playADPCM(audsrv_adpcm_t* t_adpcm) {
-  if (audsrv_play_adpcm(t_adpcm)) {
-    TYRA_LOG("AUDSRV returned error string: ", audsrv_get_error_string());
-    TYRA_TRAP("audsrv_play_adpcm() failed!");
-  }
-}
-
-void Audio::playADPCM(audsrv_adpcm_t* t_adpcm, const s8& t_ch) {
-  if (audsrv_ch_play_adpcm(t_ch, t_adpcm)) {
-    TYRA_LOG("AUDSRV returned error string: ", audsrv_get_error_string());
-    TYRA_TRAP("audsrv_ch_play_adpcm() failed!");
-  }
+  song.work();
 }
 
 }  // namespace Tyra
diff --git a/engine/src/audio/audio_adpcm.cpp b/engine/src/audio/audio_adpcm.cpp
new file mode 100644
index 0000000..07cb640
--- /dev/null
+++ b/engine/src/audio/audio_adpcm.cpp
@@ -0,0 +1,95 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022, tyra - https://github.com/h4570/tyra
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+*/
+
+#include "audio/audio_adpcm.hpp"
+#include "debug/debug.hpp"
+#include <tamtypes.h>
+#include <malloc.h>
+#include <kernel.h>
+#include <cstdlib>
+#include <audsrv.h>
+#include "thread/threading.hpp"
+
+namespace Tyra {
+
+AudioAdpcm::AudioAdpcm() {}
+
+AudioAdpcm::~AudioAdpcm() {}
+
+void AudioAdpcm::init() { initAUDSRV(); }
+
+void AudioAdpcm::initAUDSRV() {
+  int ret = audsrv_adpcm_init();
+
+  TYRA_ASSERT(ret >= 0,
+              "AUDSRV returned error string:", audsrv_get_error_string());
+}
+
+void AudioAdpcm::reset() { audsrv_adpcm_init(); }
+
+audsrv_adpcm_t* AudioAdpcm::load(const char* t_path) {
+  FILE* file = fopen(t_path, "rb");
+  fseek(file, 0, SEEK_END);
+  u32 adpcmFileSize = ftell(file);
+  u8 data[adpcmFileSize];
+  rewind(file);
+  fread(data, sizeof(u8), adpcmFileSize, file);
+  auto* result = new audsrv_adpcm_t();
+  result->size = 0;
+  result->buffer = 0;
+  result->loop = 0;
+  result->pitch = 0;
+  result->channels = 0;
+
+  if (audsrv_load_adpcm(result, data, adpcmFileSize)) {
+    TYRA_ERROR("AUDSRV returned error string: ", audsrv_get_error_string());
+  }
+
+  fclose(file);
+  return result;
+}
+
+audsrv_adpcm_t* AudioAdpcm::load(const std::string& t_path) {
+  return load(t_path.c_str());
+}
+
+AdpcmResult AudioAdpcm::tryPlay(audsrv_adpcm_t* t_adpcm) {
+  return tryPlay(t_adpcm, -1);
+}
+
+AdpcmResult AudioAdpcm::tryPlay(audsrv_adpcm_t* t_adpcm, const s8& t_ch) {
+  int res = audsrv_ch_play_adpcm(t_ch, t_adpcm);
+  if (res >= 0) {
+    return AdpcmResult::ADPCM_OK;
+  } else if (res == -AUDSRV_ERR_NO_MORE_CHANNELS) {
+    if (t_ch < 0) {
+      return AdpcmResult::ADPCM_NO_FREE_CHANNELS;
+    } else {
+      return AdpcmResult::ADPCM_CHANNEL_USED;
+    }
+  } else {
+    return AdpcmResult::ADPCM_ERROR;
+  }
+}
+
+void AudioAdpcm::playWait(audsrv_adpcm_t* t_adpcm) { playWait(t_adpcm, -1); }
+
+void AudioAdpcm::playWait(audsrv_adpcm_t* t_adpcm, const s8& t_ch) {
+  int res = tryPlay(t_adpcm, t_ch);
+
+  while (res == AdpcmResult::ADPCM_NO_FREE_CHANNELS ||
+         res == AdpcmResult::ADPCM_CHANNEL_USED) {
+    Threading::switchThread();
+    res = tryPlay(t_adpcm, t_ch);
+  }
+}
+
+}  // namespace Tyra
diff --git a/engine/src/audio/audio_song.cpp b/engine/src/audio/audio_song.cpp
new file mode 100644
index 0000000..060cefb
--- /dev/null
+++ b/engine/src/audio/audio_song.cpp
@@ -0,0 +1,189 @@
+/*
+# _____        ____   ___
+#   |     \/   ____| |___|
+#   |     |   |   \  |   |
+#-----------------------------------------------------------------------
+# Copyright 2022, tyra - https://github.com/h4570/tyra
+# Licensed under Apache License 2.0
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+# Sandro Sobczyński <sandro.sobczynski@gmail.com>
+*/
+
+#include "audio/audio_song.hpp"
+#include "debug/debug.hpp"
+#include <tamtypes.h>
+#include <malloc.h>
+#include <cstdlib>
+#include <audsrv.h>
+
+namespace Tyra {
+
+const u16 AudioSong::chunkSize = 4 * 1024;
+
+AudioSong::AudioSong() {
+  chunkReadStatus = 0;
+  tyraVolume = 0;
+  audsrvVolume = 0;
+
+  songLoaded = false;
+  songPlaying = false;
+  inLoop = false;
+  songFinished = false;
+
+  chunk = nullptr;
+}
+
+AudioSong::~AudioSong() {
+  if (chunk) delete[] chunk;
+}
+
+void AudioSong::init() {
+  chunk = static_cast<char*>(memalign(sizeof(char), chunkSize));
+
+  initSema();
+  initAUDSRV();
+  setSongFormat();
+}
+
+void AudioSong::load(const char* t_path) {
+  if (songLoaded) unloadSong();
+  wav = fopen(t_path, "rb");
+  TYRA_ASSERT(wav != NULL, "Failed to open wav file!");
+  rewindSongToStart();
+  songLoaded = true;
+  TYRA_LOG("Song loaded!");
+}
+
+void AudioSong::load(const std::string& t_path) { load(t_path.c_str()); }
+
+void AudioSong::play() {
+  TYRA_ASSERT(songLoaded, "Cant play song because was not loaded!");
+  if (songFinished) rewindSongToStart();
+  tyraVolume = audsrvVolume;
+  audsrv_set_volume(tyraVolume);
+  songPlaying = true;
+}
+
+void AudioSong::stop() {
+  tyraVolume = 0;
+  audsrv_set_volume(tyraVolume);
+  songPlaying = false;
+}
+
+const bool& AudioSong::isPlaying() const { return songPlaying; }
+
+const bool& AudioSong::isLoaded() const { return songLoaded; }
+
+const u8& AudioSong::getVolume() const { return tyraVolume; }
+
+std::size_t AudioSong::getListenersCount() const {
+  return songListeners.size();
+}
+
+void AudioSong::initAUDSRV() {
+  int ret = audsrv_on_fillbuf(chunkSize, (audsrv_callback_t)iSignalSema,
+                              (void*)fillbufferSema);
+
+  TYRA_ASSERT(ret >= 0,
+              "AUDSRV returned error string:", audsrv_get_error_string());
+}
+
+/** Initialize semaphore which will wait until chunk of the song is not
+ * finished. */
+void AudioSong::initSema() {
+  TYRA_LOG("Creating audio semaphore");
+  sema.init_count = 0;
+  sema.max_count = 1;
+  sema.option = 0;
+  fillbufferSema = CreateSema(&sema);
+  TYRA_LOG("AudioSong semaphore created");
+}
+
+/**
+ * Close file.
+ * Delete song path from memory.
+ */
+void AudioSong::unloadSong() {
+  songLoaded = false;
+  fclose(wav);
+}
+
+/** Fseek on wav. */
+void AudioSong::rewindSongToStart() {
+  if (wav != NULL) fseek(wav, 0x30, SEEK_SET);
+  chunkReadStatus = 0;
+  songFinished = false;
+}
+
+/** Set WAV format to 16bit, 22050Hz, stereo. */
+void AudioSong::setSongFormat() {
+  format.bits = 16;
+  format.freq = 22050;
+  format.channels = 2;
+
+  if (audsrv_set_format(&format)) {
+    TYRA_ERROR("AUDSRV returned error string: ", audsrv_get_error_string());
+  }
+}
+
+void AudioSong::setVolume(const u8& t_vol) {
+  audsrvVolume = t_vol;
+  if (songPlaying) tyraVolume = t_vol;
+
+  if (audsrv_set_volume(tyraVolume)) {
+    TYRA_ERROR("AUDSRV returned error string: ", audsrv_get_error_string());
+  }
+}
+
+void AudioSong::work() {
+  if (!songPlaying || !songLoaded) return;
+  if (songFinished) {
+    TYRA_LOG("AudioSong: Song finished. ");
+    if (inLoop) {
+      TYRA_LOG("Running again.");
+      for (u32 i = 0; i < getListenersCount(); i++)
+        songListeners[i]->listener->onAudioFinish();
+      rewindSongToStart();
+    } else {
+      TYRA_LOG("Stopping song.");
+      stop();
+      return;
+    }
+  }
+
+  if (chunkReadStatus > 0) {
+    WaitSema(fillbufferSema);  // wait until previous chunk wasn't finished
+    audsrv_play_audio(chunk, chunkReadStatus);
+    for (u32 i = 0; i < getListenersCount(); i++)
+      songListeners[i]->listener->onAudioTick();
+  }
+
+  chunkReadStatus = fread(chunk, 1, chunkSize, wav);
+
+  if (chunkReadStatus < (s32)chunkSize) songFinished = true;
+}
+
+u32 AudioSong::addListener(AudioListener* t_listener) {
+  AudioListenerRef* ref = new AudioListenerRef;
+  ref->id = rand() % 1000000;
+  ref->listener = t_listener;
+  songListeners.push_back(ref);
+  return ref->id;
+}
+
+void AudioSong::removeListener(const u32& t_id) {
+  s32 index = -1;
+  for (u32 i = 0; i < songListeners.size(); i++)
+    if (songListeners[i]->id == t_id) {
+      index = i;
+      break;
+    }
+
+  TYRA_ASSERT(index != -1,
+              "Cant remove listener because given id was not found!");
+
+  delete songListeners[index];
+  songListeners.erase(songListeners.begin() + index);
+}
+
+}  // namespace Tyra
diff --git a/template/.vscode/configurations/windows-docker/tasks.json b/template/.vscode/configurations/windows-docker/tasks.json
index 96fa5aa..9b1b505 100644
--- a/template/.vscode/configurations/windows-docker/tasks.json
+++ b/template/.vscode/configurations/windows-docker/tasks.json
@@ -44,6 +44,14 @@
             },
             "command": "./run.ps1"
         },
+        {
+            "type": "shell",
+            "label": "Convert WAV to ADPCM",
+            "dependsOn": [
+                "1. Copy source code to docker volume"
+            ],
+            "command": "docker exec -t tyra-compiler sh -c 'adpenc ${input:wav2adpcmSource} ${input:wav2adpcmTarget} && rsync -zac /src/${input:wav2adpcmTarget} /host/${input:wav2adpcmTarget}'"
+        },
         {
             "type": "shell",
             "label": "Cleanup",
@@ -83,6 +91,18 @@
         }
     ],
     "inputs": [
+        {
+            "id": "wav2adpcmSource",
+            "description": "Source file path (ex. ):",
+            "default": "res/sound.wav",
+            "type": "promptString"
+        },
+        {
+            "id": "wav2adpcmTarget",
+            "description": "Target file path (ex. ):",
+            "default": "res/sound.adpcm",
+            "type": "promptString"
+        },
         {
             "id": "ps2Ip",
             "description": "PS2link ip address:",
diff --git a/tutorials/01-hello/src/tutorial_01.cpp b/tutorials/01-hello/src/tutorial_01.cpp
index 54cceed..95ab27e 100644
--- a/tutorials/01-hello/src/tutorial_01.cpp
+++ b/tutorials/01-hello/src/tutorial_01.cpp
@@ -39,12 +39,12 @@ Sprite* get2DPicture(Renderer* renderer);
 
 void Tutorial01 ::init() {
   // Song
-  engine->audio.loadSong(FileUtils::fromCwd("mafikizolo-loot.wav"));
+  engine->audio.load(FileUtils::fromCwd("mafikizolo-loot.wav"));
   engine->audio.setSongLoop(true);
-  engine->audio.setSongVolume(30);
+  engine->audio.setVolume(30);
 
-  adpcmSample = engine->audio.loadADPCM(FileUtils::fromCwd("walk.adpcm"));
-  engine->audio.setADPCMVolume(80, 1);
+  adpcmSample = engine->audio.load(FileUtils::fromCwd("walk.adpcm"));
+  engine->audio.setVolume(80, 1);
 
   engine->renderer.setClearScreenColor(Color(64.0F, 64.0F, 64.0F));
 
@@ -134,7 +134,7 @@ void Tutorial01 ::init() {
     blocks.push_back(block);
   }
 
-  // engine->audio.playSong();
+  // engine->audio.play();
   // engine->renderer.setFrameLimit(false);
 }