# Adding UI Sound Effects This page covers adding sound effects to common UI elements like buttons and sliders. 1. Verify the `Music` and `SFX` audio busses. 1. Open the Audio bus editor. 2. Confirm that `Music` and `SFX` audio busses are available. 1. If the last bus is `New Bus`, try restarting the editor and checking again. 3. If the audio bus doesn't exist, add it and save the project. 1. Add UI sound effects: 1. By scene. 1. Open `main_menu_with_animations.tscn` and `pause_menu.tscn`. 2. In the Scene Tree, select the `UISoundController` node. 3. In the Inspector, add audio streams to the various UI node events. 4. Save the scenes. 2. Project-wide. 1. Open `project_ui_sound_controller.tscn`. 2. In the Scene Tree, select the `UISoundController` node. 3. In the Inspector, add audio streams to the various UI node events. 4. Save the scene.