Function _process_audio_events 

pub fn _process_audio_events(
    audio_manager: ResMut<'_, AudioManager>,
    audio_center: ResMut<'_, AudioCenter>,
    assets: ResInit<'_, AssetServer>,
    entities: ResMut<'_, Entities>,
    audios: CompMut<'_, Audio>,
)

Internally used sytem for processing audio events in the bones audio session.