title: How to make a simple EQ AudioUnit (bass, mid, treble) with iOS?
body: <p>does anyone know how to make a simple EQ audio unit (3 bands - low, mid, hi) with iOS ? I know how to add an iPod EQ Audio Unit to my AU Graph. But it only give you access to presets and I need proper control of the EQ.</p>
  
  <p>I've looked around for some tutorials or explanations but no luck. </p>
  
  <p>Thanks.</p>
  
  <p>André</p>