Version: 2.0
    Copyright 2003-2013, Apple Inc. All Rights Reserved.
    Specify -h (-help) for command options

Usage:
afplay [option...] audio_file

Options: (may appear before or after arguments)
  {-v | --volume} VOLUME
  {-h | --help}
  { --leaks} run leaks analysis
  {-t | --time} TIME play for TIME seconds
  {-r | --rate} RATE
  {-q | --rQuality} QUALITY set the quality used for rate-scaled playback (default is 0 - low quality, 1 - high quality)
  {-d | --debug} debug print output

     Audio File Info
     Version: 2.0
     Copyright 2003-2016, Apple Inc. All Rights Reserved.
     Specify -h (-help) for command options

Usage:
afinfo [option...] audio_file(s)

  {-h --help}
  {-b --brief} print a brief description of the audio file
  {-r --real} get the estimated duration after obtaining the real packet count
  { --leaks } run leaks at the end
  { -i --info } print contents of the InfoDictionary
  { -u --userprop } 4-cc find and print a property or user data property (as string or bytes) [does not print to xml]
  { -x --xml } print output in xml format
  { --warnings } print warnings if any (by default warnings are not printed in non-xml output mode)