Zeqer Audio Build

An audio build (.abld) binary file stores a ROM audio build specification. In other words, it notes which samples, soundfonts/banks, and sequences to include in a single audio build. This file was designed to be read serially at once.

Byte Order: Big-Endian

Current Version: 2 (As of 2023/08/05)

Format

File

Offset	Type	Size	Field Name	Description	Versions
0x00	char[4]	4	Magic Number	Identifier ("aBld")
0x04	u16	2	Flags	Flags providing information about build. See below for specifics.
0x06	s16	2	Version	File type version
0x08	u64	8	Date Created	Timestamp of build creation (Epoch seconds)	2+
0x10	u64	8	Date Modified	Timestamp of last modification (Epoch seconds)	2+
0x18	VLS 2x2	Var	Build Name	Display name of build (UTF8).	Offset at 0x08 for version 1
Var	VLS 2x2	Var	Base ROM ID	[Injections ONLY] Zeqer ID of target ROM (ASCII).	2+
Var	s16	2	Seq Count	Number of sequence slots used in build.
Var	SeqRec[n]	Var	Seq Record Table	Info about sequences to include.
Var	s16	2	Bank Count	Number of soundfont/soundbank slots used in build.
Var	BankRec[n]	8n	Bank Record Table	Info about fonts/banks to include.
Var	s16	2	Wave Archive Count	Number of wave archive/samplebank slots used in build. (Or samples, if injection)
Var	WarcRec[n]	Var	Wave Archive Record Table	Info about wave archives/samplebanks to include.

Seq Record

Offset	Type	Size	Field Name	Description
0x00	u32	4	UID	UID of sequence to include.
0x04	s8	1	Medium	Medium override.
0x05	s8	1	Cache Policy	Cache policy override.
0x06	s16	2	Bank Count	Number of linked soundbanks/soundfonts.
0x08	u32[n]	4n	Bank UIDs	UIDs of linked banks.

Bank Record

Offset	Type	Size	Field Name	Description
0x00	u32	4	UID	UID of bank/font to include.
0x04	s8	1	Medium	Medium override.
0x05	s8	1	Cache Policy	Cache policy override.
0x06	s8	1	Wave Archive 1	Index within build of linked wave archive.
0x07	s8	1	Wave Archive 2	Index within build of second linked wave archive, or -1 if not used.

Wave Archive Record

Offset	Type	Size	Field Name	Description
0x00	u16	2	Sample Count / Ref Flag	Reference flag or number of samples in this archive.*
Var	VLS 2x2	Var	Archive Name	Display name for archive. (UTF8)
Var	VLS 2x2	Var	Enum String	Enum string to use for recomp outputs (ASCII).
Var	s8	1	Medium	Medium override.
Var	s8	1	Cache Policy	Cache policy override.
Var	u32[n]	4n	Sample UIDs	UIDs of sound samples to include in archive, in order.

Seq Record (Injection)

Offset	Type	Size	Field Name	Description
0x00	u32	4	Slot Index	Index of sequence slot to replace.
0x04	u32	4	UID	UID of sequence to include.
0x08	s8	1	Medium	Medium override.
0x09	s8	1	Cache Policy	Cache policy override.
0x0A	s16	2	Bank Count	Number of linked soundbanks/soundfonts.
0x0C	u32[n]	4n	Bank UIDs	UIDs of linked banks.

Bank Record (Injection)

Offset	Type	Size	Field Name	Description
0x00	u32	4	Slot Index	Index of bank/font slot to replace.
0x04	u32	4	UID	UID of bank/font to include.
0x08	s8	1	Medium	Medium override.
0x09	s8	1	Cache Policy	Cache policy override.
0x0A	s8	1	Wave Archive 1	Index within build of linked wave archive.
0x0B	s8	1	Wave Archive 2	Index within build of second linked wave archive, or -1 if not used.

Wave Record (Injection)

Offset	Type	Size	Field Name	Description
0x00	u32	4	UID	UID of wave to include.

*If the top bit is set, then the archive slot is a reference to another archive. In this case, the structure should be read as if there were zero samples.

Flags & Enums

ABLD Header Flags

Bit(s)	Field	Versions
15	OoT Compatible?
14	(Reserved)
13 - 12	TV Type Enum
11 - 1	(Reserved)
0	Injection?	2+

TV Type Enum

Value	Name
0	PAL
1	NTSC
2	MPAL