(PECL openal >= 0.1.0)
openal_listener_set — Set a listener property
property
      Property to set, one of:
      AL_GAIN (float),
      AL_POSITION (array(float,float,float)),
      AL_VELOCITY (array(float,float,float)) and
      AL_ORIENTATION (array(float,float,float)).
     
settingValue to set, either float, or an array of floats as appropriate.
   Returns TRUE on success or FALSE on failure.