AudioDeviceIOProc

type AudioDeviceIOProc = function(

  inDevice: AudioObjectID;

  const inNow: AudioTimeStamp;

  const inInputData: AudioBufferList;

  const inInputTime: AudioTimeStamp;

  var outOutputData: AudioBufferList;

  const inOutputTime: AudioTimeStamp;

  inClientData: UnivPtr

):OSStatus;