Mute or allow audio from other applications to play in the background while the Unity application is running.
A shared setting between iOS and Android platforms.
If this is set to true, the Unity application silences audio from other applications.
If this is set to false, audio from other applications continues to play in the background. The volume of the background audio depends on the platform. On iOS the volume stays the same, while on Android it is decreased. This is how audio from different applications has to be handled on Android. If your Unity application does not have any sound, you can disable Unity audio in the Audio Manager (menu: Edit > Project Settings > Audio), allowing audio from other applications on Android to play at the original volume.