title: iOS: How to read an audio file into a float buffer
body: <p>I have a really short audio file, say a 10th of a second in (say) .PCM format</p>
  
  <p>I want to use RemoteIO to loop through the file repeatedly to produce a continuous musical tone.  So how do I read this into an array of floats?</p>
  
  <p>EDIT:  while I could probably dig out the file format, extract the file into an NSData and process it manually, I'm guessing there is a more sensible generic approach... ( that eg copes with different formats )</p>