title: How to play a sound of paticular frequency and framework not found AudioUnit question
body: <p>How to play a sound of paticular frequency and framework not found AudioUnit question1. I want to play a sound of paticular frequency.
  Can anybody tell me which function should I use for this purpose. </p>
  
  <p>2.I can not use the iPhone SDK in AudioUnit Framworks.
  Compile time, the following error.</p>
  
  <p>Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.0-arch i386-isysroot / Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator2.2.1.sdk -L/Users/gl/Desktop / BY/Apps/t5/build/Debug-iphonesimulator -F/Users/gl/Desktop/BY/Apps/t5/build/Debug-iphonesimulator-filelist / Users/gl/Desktop/BY/Apps/t5/build/t5. build/Debug-iphonesimulator/t5.build/Objects-normal/i386/t5.LinkFileList-mmacosx-version-min = 10.5-framework Foundation-framework UIKit-framework CoreGraphics-framework AudioUnit-o / Users / gl / Desktop / BY / Apps/t5/build/Debug-iphonesimulator/t5.app/t5
  ld: framework not found AudioUnit
  collect2: ld returned 1 exit status</p>
  
  <p>Please help me.</p>