The CAUD format stores sound effect macros. It references one or more audio samples and controls how they play in-game. It's essentially a replacement for the SoundMacro system from the AGSC format in Prime 1/2.
Format
| Type
|
Count
|
Name
|
Notes
|
| FourCC
|
1
|
Magic
|
Always CAUD
|
| u32
|
1
|
Version
|
Possible values:
- 0x2: Metroid Prime 3 E3 Prototype
- 0x9: Metroid Prime 3
- 0xE: Donkey Kong Country Returns
|
| string
|
1
|
Macro Name
|
This is a zero-terminated string.
|
| u32
|
1
|
Volume Group Count
|
Count of volume groups this macro is in.
|
| string
|
Volume Group Count
|
Volume Group Name Array
|
Array of volume group name strings. These names are referenced by VolumeGroup script instances in MREA files.
|
| u32
|
1
|
Unknown
|
|
| u32
|
1
|
Unknown
|
|
| float
|
1
|
Unknown
|
|
| float
|
1
|
Unknown
|
|
| u32
|
1
|
Unknown
|
|
| u32
|
1
|
Sample Count
|
Count of audio samples in the macro.
|
| Sample Info
|
Sample Count
|
Sample Array
|
Array defining all audio samples used in the macro.
|
| End of File
|
Sample Info
|
To do:
This is not complete!
|
| Offset
|
Type
|
Count
|
Name
|
Notes
|
| 0x0
|
u32
|
1
|
Sample Info Size
|
Size of this sample info chunk, not including itself.
|
| 0x4
|
Asset ID (CSMP)
|
1
|
Sample ID
|
Asset ID of the audio sample.
|