--- title: "Audio for 2D Projects" content_type: tutorial url: "https://learn.unity.com/pathway/game-development/unit/audio/tutorial/audio-for-2d-projects?language=en" language: en container_type: pathway container_title: "Game Development" container_url: "https://learn.unity.com/pathway/game-development.md?language=en&version=6.3" unit_title: "Audio" unit_url: "https://learn.unity.com/pathway/game-development/unit/audio?language=en&version=6.3" standalone_markdown_url: "https://learn.unity.com/tutorial/audio-for-2d-projects.md?language=en&version=6.3" previous_title: "Challenge: Your own soundscape" previous_url: "https://learn.unity.com/pathway/game-development/unit/audio/tutorial/challenge-your-own-soundscape-1?language=en&version=6.3" previous_markdown_url: "https://learn.unity.com/pathway/game-development/unit/audio/tutorial/challenge-your-own-soundscape-1.md?language=en&version=6.3" next_title: "Add audio to your game (Game Dev)" next_url: "https://learn.unity.com/pathway/game-development/unit/audio/tutorial/game-dev-add-audio-to-your-game?language=en&version=6.3" next_markdown_url: "https://learn.unity.com/pathway/game-development/unit/audio/tutorial/game-dev-add-audio-to-your-game.md?language=en&version=6.3" difficulty: beginner duration_minutes: 10 unity_version: - "6.3" supported_unity_versions: - name: "6.3" url: "https://learn.unity.com/pathway/game-development/unit/audio/tutorial/audio-for-2d-projects.md?language=en&version=6.3" last_updated: "2026-08-04T14:23:30.000Z" --- # Audio for 2D Projects Practice applying 3D audio techniques like spatial sound and environmental effects to 2D Unity projects with animation events. This tutorial guides you through applying your 3D audio knowledge to 2D Unity projects, including spatial sound, environmental effects, and animation events. ## 1. Overview You’ve created audio for 3D projects, including implementing spatial audio for environmental sounds, dynamic footsteps triggered by animation events, and reverb zones to simulate enclosed spaces. In this tutorial, you’ll see those concepts applied in a 2D context. You'll explore a 2D version of a similar scene with comparable audio incorporated, and you’ll discover how audio functionality remains similar or differs in a 2D project. ![2D robot character standing near a waterfall on a grassy area surrounded by boulders.](https://storage.googleapis.com/learn-platform-bucket-production/tutorial/9cbd4f31-5b27-41c5-919e-f63d96c5d8d4/versions%5B_key==%224e1ff8549b6c%22%5D.sections%5B_key==%22aea94bde96e8%22%5D.body%5B_key==%22e87a50e8af12%22%5D.image/Audio_1_Overview_20260123_021134.png) ## 2. Experience the 2D_Audio scene In this step, you'll open the **CreativeCore_2D** project and then explore the 2D audio demo scene within it. [Video](https://storage.googleapis.com/learn-platform-bucket-production/tutorial/9cbd4f31-5b27-41c5-919e-f63d96c5d8d4/versions%5B_key==%224e1ff8549b6c%22%5D.sections%5B_key==%22a6c3f40a2f65%22%5D.body%5B_key==%225ab103c90a8d%22%5D.overviewVideo/Audio_2_Demo_20260123_023551.mp4) # Instructions **1.** **Download and open the CreativeCore_2D project:** - If you’ve already downloaded the **CreativeCore_2D** project in a previous unit, open it now using the Unity Hub. - If you haven’t downloaded the **CreativeCore_2D** project yet, you can download the project [here](https://storage.googleapis.com/learn-platform-bucket-production/pathway/72351e57-61aa-4006-9a0c-ce8adc3a4797/units%5B_key==%22d33247785d76%22%5D.materials%5B_key==%227bf789466c85%22%5D.file/creative-core-2d_6.3_20260128_002707.zip) and then open it using the Unity Hub. - When the project is open in the Unity Editor, verify you see a **CreativeCore_2D** folder within your **Project** window, containing several subfolders. **2.** **Open the CC_Audio_2D scene:** - Go to **Assets** > **CreativeCore_2D** > **Scenes**, then open **CC_Audio_2D_Scene**. **3.** **Enter Play mode and take note of the Audio elements:** - Enter Play mode. - Notice the following: - The **footstep** sounds mimic those in the 3D scene, changing when the character goes into the water. - The waterfall sound grows louder as you get closer. - The **reverb zone** in the cave area makes the footsteps echo differently. - Exit Play mode when you’re done. ## 3. Explore the 2D vs 3D implementation When implementing audio in Unity 2D projects, you'll find both similarities and key differences compared to 3D projects. For each of the similarities and differences listed below, explore the project to make sure you understand how each of the features were implemented in 2D. # What's the same? ## 3D spatial audio: Unity's 3D audio describes how sound behaves in space, not whether your game is visually 2D or 3D. So just like you used 3D audio in your 3D project, you use 3D audio in 2D projects. - Check the **Audio_Waterfall** GameObject's **Audio Source** component; its **Spatial Blend** property is still set to **3D**. ![Audio Source component showing Spatial Blend property set to 1, which is full 3D.](https://storage.googleapis.com/learn-platform-bucket-production/tutorial/9cbd4f31-5b27-41c5-919e-f63d96c5d8d4/versions%5B_key==%224e1ff8549b6c%22%5D.sections%5B_key==%227671b78caee8%22%5D.body%5B_key==%22a426197308cb%22%5D.image/Audio_3.1_3D-Audio_20260123_023730.png) ## Reverb zones: Environmental effects like reverb zones function the same way in 2D. - Locate the **Reverb Zone** in the **cave** area; its setup mirrors a 3D implementation. # What's different? ![Audio Rever Zone component with the Quarry preset enabled.](https://storage.googleapis.com/learn-platform-bucket-production/tutorial/9cbd4f31-5b27-41c5-919e-f63d96c5d8d4/versions%5B_key==%224e1ff8549b6c%22%5D.sections%5B_key==%227671b78caee8%22%5D.body%5B_key==%225ed573bfd6a5%22%5D.image/Audio_3.2_Reverb-zone_20260123_023819.png) ## Footstep animation events: While 2D animations can use events to trigger sounds just like in the 3D project, in this project they do so with **spritesheet animations**. - In **CreativeCore_2D** > **Animations** > **PlayerRobot** > **PlayerRobot_Anims,** open one of the running animations in the **Animation** window. - Expand the **Sprite** property to see the sprite images corresponding to keyframes. - Select one of the **Events** along the top of the timeline and notice that **PlayStep** is listed as the **Function**. - If you’re interested, open the **FootstepManager** script to see where the **PlayStep** function is written. [Video](https://storage.googleapis.com/learn-platform-bucket-production/tutorial/9cbd4f31-5b27-41c5-919e-f63d96c5d8d4/versions%5B_key==%224e1ff8549b6c%22%5D.sections%5B_key==%227671b78caee8%22%5D.body%5B_key==%22cbee62b83fc4%22%5D.overviewVideo/Audio_3.3_FootstepEvents_20260123_023914.mp4) ## 4. Next steps You’ve successfully navigated the key similarities and differences in implementing audio for 3D and 2D Unity projects. You now understand how to create spatial audio, environmental effects, and animation events in both contexts. With this knowledge, you’re ready to apply these concepts to your own personal projects, whether they’re in 3D or 2D.