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  • Bill Levien thinks this is interesting:

The simplest form of sound is system sound, which is the iOS equivalent of the basic computer “beep.” This is implemented through System Sound Services, part of the Audio Toolbox framework; you’ll need to @import AudioToolbox. You’ll be calling one of two C functions, which behave very similarly to one another:


Cover of Programming iOS 7, 4th Edition


Awesome explanation for feature on PUFF-92