SABS & SABL Files

SAB(Stream) and SAB(Load). The B is most likely "bank" as the game code refers to a "sound bank" when loading SABL/SABS files.

• SABS = Snd Alias Bank Stream
• SABL = Snd Alias Bank Load

Structure

Thanks to Jakes625, Red-EyeX32, master131, and kokole.

struct hash_entry_t
{
	u8 md5[0x10];                   // md5 of the audio file
}; // 0x10

SampleRateTable = { 8000, 12000, 16000, 24000, 32000, 44100, 48000, 96000, 192000 };

struct audio_entry_t
{
	u32 name; 			// this is a hash of the name. Name Found in snd_alias_t asset in ff
        u32 size;
	u32 offset;
	u32 sampleCount; 
	u8 sampleRateIndex; 			// see SampleRateTable
	u8 channelCount; 		// enum 0x1 = mono 0x2 = dual
	u8 looped;
	u8 format; 			// enum 0x0 = pcm, 0x4 = xma, 0x5 = mp3, 0x8 = flac
}; // 0x14

struct header_t
{
	u32 magic; 		        // "2UX#"
	u32 version; 		        // 0x0E
	u32 sizeOfAudioEntry;           // 0x14
	u32 sizeOfHashEntry;            // 0x10
	u32 sizeOfStringEntry;          // 0x40
	u32 entryCount; 		// number of sound entries NOT NAME ENTRIES
	u64 unk1; 			// always 0x8 for some reason, might be the size of the next 3 fields
	u64 fileLength; 		// Size of the whole file
	u64 entries; 			// &audio_entry_t[0]
	u64 hashes; 			// &hash_entry_t[0]
}; // 0x38

struct sabs_file
{
	header_t header;
	u8 asset_link_id[0x10];         // 16 bytes which are associated between sabs + 0x38 and soundasset + 0x830 (can be > 0x830)
	u8 nameEntries[30][64];
	u8 padding[0x38];
}; // 0x800

To calculate the duration of an audio entry:

durationInMilliseconds = 1000 * sampleCount / sampleRate;

Note that "sampleRate" is the actual sample rate value from the table and not the index/flag value from the structure.