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Binary_XACT_SoundBank.mw
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This is the binary version of the XACT SoundBank (XSB), version 11, as used by Jade Empire on the original Xbox. The Windows PC version of Jade Empire uses an ASCII variant, which contains the same information.
Conceptually, it's very similar to later XSB versions that are used by Microsoft's XNA toolset.
On the top-level, a SoundBank consists of cues and sounds. A sound is a collection of tracks, which each contain a list of events and a list of wave variations, while a cue consists of a list of references to sounds.
Both the cue variation and the wave variation can be selected using different methods. For example, they could be played in order, or randomly. Or they could be explicitly selected by game.
== A structural example ==
* Sounds
** Sound 0
*** Track 0
**** Event list
***** PLAY
***** LOOP
***** VOLUME
***** PITCH
**** Wave variations
***** Sound 23 out of WaveBank "foobar"
***** Sound 24 out of WaveBank "foobar"
***** Sound 12 out of WaveBank "quux"
** Sound 1
*** Track 0
**** Event list
***** PLAY
**** Wave variations
***** Sound 24 out of WaveBank "foobar"
*** Track 1
**** Event list
***** PLAY
**** Wave variations
***** Sound 25 out of WaveBank "foobar"
* Cues
** Cue 0
*** Cue variations
**** Sound 0
**** Sound 1
** Cue 1
*** Cue variations
**** Sound 0
** Cue 2
*** Cue variations
**** Sound 1
== Structures ==
All numerical values are little-endian.
=== Header ===
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 4
| FourCC, "SDBK"
|-
| 0x04
|align="right"| 2
| Version, 11 (0B 00)
|-
| 0x06
|align="right"| 2
| CRC
|-
| 0x08
|align="right"| 4
| Offset to WaveBank array
|-
| 0x0C
|align="right"| 4
| Offset to crossfade parameters array
|-
| 0x10
|align="right"| 4
| Offset to 3D parameters array
|-
| 0x14
|align="right"| 4
| Offset to ?
|-
| 0x18
|align="right"| 2
| XSB flags
|-
| 0x1A
|align="right"| 2
| Number of ?
|-
| 0x1C
|align="right"| 2
| Number of sounds (soundCount)
|-
| 0x1E
|align="right"| 2
| Number of cues (cueCount)
|-
| 0x20
|align="right"| 2
| Number of ?
|-
| 0x22
|align="right"| 2
| Number of WaveBanks
|-
| 0x24
|align="right"| 4
| ?
|-
| 0x28
|align="right"| 16
| SoundBank name
|-
| 0x38
|align="right"| cueCount * 20
| Cue entries
|-
| 0x38 + cueCount * 20
|align="right"| soundCount * 20
| Sound entries
|}
=== WaveBank entry ===
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 16
| WaveBank file name (without extension)
|}
=== Cue entry ===
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 2
| Flags
|-
| 0x02
|align="right"| 2
| Sound index (see below)
|-
| 0x04
|align="right"| 4
| Offset to name (see below)
|-
| 0x08
|align="right"| 4
| Offset to cue variations (see below)
|-
| 0x0C
|align="right"| 2
| Index into the crossfade parameters array
|-
| 0x0E
|align="right"| 2
| ?
|-
| 0x10
|align="right"| 4
| Interactive transitions (see below)
|}
Sound index: 0xFFFF if the cue has only one variations.
Offset to name: 0xFFFFFFFF if the cue has no name. Should be ignored if XSB_FLAG_NO_CUE_NAMES is set.
Offset to cue variations: 0xFFFFFFFF if the cue has no variations
Interactive transitions: AAAAAAAAAAAAAAAAAAAAAAAABBBBB???
* A, 24 bits: Offset to the interactive transition definitions
* B, 5 bits: Trigger variable
=== Sound entry ===
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 4
| Offset or indices (see below)
|-
| 0x04
|align="right"| 2
| Volume and LFE volume (see below)
|-
| 0x06
|align="right"| 2
| Pitch
|-
| 0x08
|align="right"| 1
| Number of tracks
|-
| 0x09
|align="right"| 1
| Layer
|-
| 0x0A
|align="right"| 1
| Category
|-
| 0x0B
|align="right"| 1
| Flags
|-
| 0x0C
|align="right"| 2
| Index into the 3D parameters array
|-
| 0x0E
|align="right"| 1
| Priority
|-
| 0x0F
|align="right"| 1
| I3DL2 volume in 2.56th dB
|-
| 0x10
|align="right"| 2
| Parametric EQ gain in 8192th dB
|-
| 0x12
|align="right"| 2
| EQ Q and EQ frequency (see below)
|}
Offset or indices: Offset to non-trivial entry, or 2 bytes of wave index and 2 bytes of wavebank index.
Volume and LFE volume: AAAAAAABBBBBBBBB
* A, 7 bits: LFE volume. VolumeLFE = -A * 0.5
* B, 9 bits: volume: Volume = -B * 0.16
EQ Q and EQ frequency: AAAAAAAAAAAAABBB
* A, 13 bits: EQ frequency
* B, 3 bits: EQ Q coefficient. Q = 1 / 2^B
=== Simple sound track ===
One track, one PLAY event, multiple wave variations.
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 4
| Variation parameters (see below)
|-
| 0x04
|align="right"| variationCount * 4
| Variation entry (see below)
|}
Variation parameters: AABBBBBBBBBBBBBCCCCDDDDDDDDDDDDD
* A, 2 bits: Flags
* B, 13 bits: Current variation
* C, 4 bits: Variation selection method
* D, 13 bits: Number of variations (variationCount)
Variation entry: 2 bytes of wave index and 2 bytes of wavebank index.
=== Complex sound tracks ===
Multiple tracks or more than just a simple PLAY event.
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Number of events
|-
| 0x01
|align="right"| 3
| Offset to event list
|}
=== Variation table ===
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 4
| Variation parameters (see below)
|-
| 0x04
|align="right"| variationCount * 8
| Variation entry
|}
Variation parameters: AABBBBBBBBBBBBBCCCCDDDDDDDDDDDDD
* A, 2 bits: Flags
* B, 13 bits: Current variation
* C, 4 bits: Variation selection method
* D, 13 bits: Number of variations (variationCount)
=== Event list entry ===
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| ?
|-
| ....
|align="right"|
| Parameters
|}
==== Event list entry for a PLAY event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x00)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x04)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Loop count
|-
| 0x08
|align="right"| 4
| Offset or indices (see below)
|}
Offset or indices: If XSB_PLAY_EVENT_FLAG_COMPLEX in Flags is set, this is an offset to a wave variation list (see "Simple sound track" above). Otherwise, this is 2 bytes of a sound index followed by 2 bytes of bank index.
==== Event list entry for a PLAY_COMPLEX event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x01)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x10)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Loop count
|-
| 0x08
|align="right"| 4
| Offset or indices (see below)
|-
| 0x0C
|align="right"| 2
| Pitch variation, lower bound
|-
| 0x0E
|align="right"| 2
| Pitch variation, upper bound
|-
| 0x10
|align="right"| 2
| Volume variation, lower bound
|-
| 0x12
|align="right"| 2
| Volume variation, upper bound
|-
| 0x14
|align="right"| 2
| Maximum variable sound delay in milliseconds
|-
| 0x16
|align="right"| 2
| ?
|}
Offset or indices: If XSB_PLAY_EVENT_FLAG_COMPLEX in Flags is set, this is an offset to a wave variation list (see "Simple sound track" above). Otherwise, this is 2 bytes of a sound index followed by 2 bytes of bank index.
==== Event list entry for a PITCH event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x04)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x08)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Number of fade steps
|-
| 0x08
|align="right"| 2
| Pitch, lower bound or starting value
|-
| 0x0A
|align="right"| 2
| Pitch, upper bound or starting value
|-
| 0x0C
|align="right"| 1
| ?
|-
| 0x0D
|align="right"| 3
| Fade duration in milliseconds
|}
==== Event list entry for a VOLUME event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x05)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x08)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Number of fade steps
|-
| 0x08
|align="right"| 2
| Volume, lower bound or starting value
|-
| 0x0A
|align="right"| 2
| Volume, upper bound or starting value
|-
| 0x0C
|align="right"| 1
| ?
|-
| 0x0D
|align="right"| 3
| Fade duration in milliseconds
|}
==== Event list entry for a LOWPASS event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x07)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x0C)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Sweep step count
|-
| 0x08
|align="right"| 2
| Cut-off frequency start
|-
| 0x0A
|align="right"| 2
| Cut-off frequency end
|-
| 0x0C
|align="right"| 1
| ?
|-
| 0x0D
|align="right"| 3
| Sweep duration
|-
| 0x10
|align="right"| 2
| Resonance start
|-
| 0x12
|align="right"| 2
| Resonance end
|}
==== Event list entry for a LFO_PITCH event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x08)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x04)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| ?
|-
| 0x08
|align="right"| 1
| ?
|-
| 0x09
|align="right"| 1
| ?
|-
| 0x0A
|align="right"| 1
| Delta
|-
| 0x0B
|align="right"| 1
| Pitch modulation
|}
==== Event list entry for a LFO_MULTI event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x09)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x08)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| ?
|-
| 0x08
|align="right"| 1
| ?
|-
| 0x09
|align="right"| 1
| ?
|-
| 0x0A
|align="right"| 1
| Delta
|-
| 0x0B
|align="right"| 1
| Pitch modulation
|-
| 0x0C
|align="right"| 1
| Filter modulation
|-
| 0x0D
|align="right"| 1
| Amplitude modulation
|-
| 0x0E
|align="right"| 1
| ?
|-
| 0x0F
|align="right"| 1
| ?
|}
==== Event list entry for a ENVELOPE_AMPLITUDE event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x0A)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x0C)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| ?
|-
| 0x08
|align="right"| 2
| Delay in seconds
|-
| 0x0A
|align="right"| 2
| Attack in seconds
|-
| 0x0C
|align="right"| 2
| Hold in seconds
|-
| 0x0E
|align="right"| 2
| Decay in seconds
|-
| 0x10
|align="right"| 2
| Release in seconds
|-
| 0x12
|align="right"| 1
| Sustain power
|-
| 0x13
|align="right"| 1
| ?
|}
==== Event list entry for a ENVELOPE_PITCH event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x0B)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x10)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| ?
|-
| 0x08
|align="right"| 2
| Delay in seconds
|-
| 0x0A
|align="right"| 2
| Attack in seconds
|-
| 0x0C
|align="right"| 2
| Hold in seconds
|-
| 0x0E
|align="right"| 2
| Decay in seconds
|-
| 0x10
|align="right"| 2
| Release in seconds
|-
| 0x12
|align="right"| 1
| Sustain power
|-
| 0x13
|align="right"| 1
| ?
|-
| 0x14
|align="right"| 1
| ?
|-
| 0x15
|align="right"| 1
| ?
|-
| 0x16
|align="right"| 1
| Pitch scale
|-
| 0x17
|align="right"| 1
| Filter cut-off
|}
==== Event list entry for a LOOP event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x0C)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x00)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Number of loops (see below)
|}
Number of loops: 0xFFFF for looping indefinitely.
==== Event list entry for a MARKER event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x0E)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x00)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| Marker occurrences
|-
| 0x08
|align="right"| 4
| Marker value
|-
| 0x0C
|align="right"| 1
| ?
|-
| 0x0D
|align="right"| 3
| Repeat duration in milliseconds
|}
==== Event list entry for a MIXBINS event ====
{| class="wikitable"
! Offset
!align="right"| Size
! Description
|-
| 0x00
|align="right"| 1
| Event type (= 0x10)
|-
| 0x01
|align="right"| 3
| Timestamp in milliseconds
|-
| 0x04
|align="right"| 1
| Parameter size in bytes (= 0x20)
|-
| 0x05
|align="right"| 1
| Flags
|-
| 0x06
|align="right"| 2
| ?
|-
| 0x08
|align="right"| 1
| Channel index 0
|-
| 0x09
|align="right"| 1
| ?
|-
| 0x0A
|align="right"| 2
| Channel volume 0
|-
| 0x0C
|align="right"| 1
| Channel index 1
|-
| 0x0D
|align="right"| 1
| ?
|-
| 0x0E
|align="right"| 2
| Channel volume 1
|-
| 0x10
|align="right"| 1
| Channel index 2
|-
| 0x11
|align="right"| 1
| ?
|-
| 0x12
|align="right"| 2
| Channel volume 2
|-
| 0x14
|align="right"| 1
| Channel index 3
|-
| 0x15
|align="right"| 1
| ?
|-
| 0x16
|align="right"| 2
| Channel volume 3
|-
| 0x18
|align="right"| 1
| Channel index 4
|-
| 0x19
|align="right"| 1
| ?
|-
| 0x1A
|align="right"| 2
| Channel volume 4
|-
| 0x1C
|align="right"| 1
| Channel index 5
|-
| 0x1D
|align="right"| 1
| ?
|-
| 0x1E
|align="right"| 2
| Channel volume 5
|-
| 0x20
|align="right"| 1
| Channel index 6
|-
| 0x21
|align="right"| 1
| ?
|-
| 0x22
|align="right"| 2
| Channel volume 6
|-
| 0x24
|align="right"| 1