ロイヤルSound is an app that allows you to simulate and enjoy the background music (BGM) and sound effects (SE) from games. With this app, you can listen to your favorite game music and play various sound effects.

The app features a BGM playback function, where you can tap on the music icon at the top to play the desired music. Additionally, you can easily move the player to your preferred position using the player icon in the top right corner.

For sound effects, simply tap on the SE icon at the bottom to play them. You also have the option to set frequently used sound effects from the editing menu.

Furthermore, the app offers a volume adjustment function, allowing you to adjust the volume of both the BGM and SE. Simply tap on the "≡" button in the top left corner of the app to access the volume controls.

Please note that it may take some time to receive a response to any inquiries you may have.