The audio_group.xml defines sound file groups and specific OPENAL parameters to the group.

  <class_name>
  	<group_name>
  		{
  		file_name
  		file_name
  		file_name
  		}
  RANDOMIZE FILES IN GROUP: Y/N
  GAIN RANGE UPPER: RANGE
  GAIN RANGE LOWER: RANGE
  RANDOMIZE GAIN: Y/N
  PITCH RANGE UPPER: RANGE
  PITCH RANGE LOWER: RANGE
  RANOMIZE PITCH: Y/N

EXAMPLE:

  class= human_footstep_class
  	group= human_footstep_grass
   {
   footstep_01.ogg
   footstep_02.ogg
   footstep_03.ogg
   footstep_04.ogg
   footstep_05.ogg
   footstep_06.ogg
   footstep_07.ogg
   footstep_08.ogg
   footstep_09.ogg
   footstep_10.ogg
   footstep_11.ogg
   footstep_12.ogg
   }
  RANDOMIZE FILES IN GROUP: Y
  GAIN RANGE UPPER: 0.5
  GAIN RANGE LOWER: 0.4
  RANDOMIZE GAIN: Y
  PITCH RANGE UPPER: 1.2
  PITCH RANGE LOWER: 0.8
  RANOMIZE PITCH: Y

audio_group.xml

Naming standard is defined as: Shortname + Grouping(Intensity #) (ex. human footstep on grass intensity 1 = hstep_grass1)

Human

Movement

Footstep, Dirt

Footstep, Mud

Footstep, Grass

Footstep, Sand

Footstep, Snow

Footstep, Forest

Footstep, Road

Footstep, Rock

Death

Resource

Construction

Construction, Wood

Construction, Stone

Construction, Ore