Driver 3 XA

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XA

• Format type: Audio
• Endianness: Little-endian

Format Specifications

char {4}     - identifier ("e4x" 92)

uint32 {4}   - Unknown
uint32 {4}   - sampling rate
uint32 {4}   - format type (possibly only compression flag)
uint32 {4}   - track 0 data offset
uint32 {4}   - track 1 data offset
uint32 {4}   - track 0 data size
uint32 {4}   - track 1 data size
uint32 {4}   - Unknown
// if format tag is 1

uint32 {4}   - block size

// for each track

byte {x}     - padding until track offset

// if format tag is 0

int16 {x}    - raw stereo PCM data

// if format tag is 1

// until track has finished (IMA ADPCM variant blocks)

int16 {2}    - initial sample (left channel)

byte {1}     - initial index (left channel)

byte {1}     - unused (0x00)

int16 {2}    - initial sample (right channel)

byte {1}     - initial index (right channel)

byte {1}     - unused (0x00)

byte {x}     - sample codes (left channel) (first half of block)

byte {x}     - sample codes (right channel) (second half of block)

Notes and Comments

• The track data can theoretically be stored in different formats: Format type 0 specifies raw uncompressed 16 bit PCM data, while format type 1 tags the data as being compressed by an IMA ADPCM variant. Since only those two types are currently known to exist, the format type field might actually be just a boolean value.
• If the offset and/or size value for a particular track are 0, then this track does not exist within the file.
• This format also applies to Driver: Parallel Lines with a minor modification: The header identifier is "XA30".

MultiEx BMS Script

None written yet.

Supported by Programs

XA2WAV

Links

None

Games

• Driver 3 Driver: Parallel Lines *.xa