iPhone system sounds in my bundle

I would like to use the system sounds (Marimba, Ascending, Bark etc) as local notification sounds in my app. As I can't access these directly, can anyone tell me where I can get .aiff files for these sounds that I can include in my bundl开发者_如何转开发e?

I'm not sure you can use those without explicit permission. There are, however, CC licensed sounds available from resources such as the Freesound project you can use in your app (subject to respective licenses).