BRWSD (File Format)

Under Construction

This article is not finished. Help improve it by adding accurate information or correcting grammar and spelling.

BRWSD (Binary Revolution Wave Sound Data) is a sub file format found in BRSAR files from many Wii games. It consists of a table of instance parameters that link to direct audios found into BRWAR files.

File Format

File Header

Offset	Type	Description
0x00	String	File magic. Always RWSD in ASCII.
0x04	UInt16	Byte order mark (BOM): The value is always 0xFEFF. If value 0xFFFE is read, then the false endian is used. Mario Kart Wii uses nearly always big endian (bytes 0xFE,0xFF).
0x06	UInt16	Version number of the file format. (?)
0x08	UInt32	Length of the file in bytes.
0x0C	UInt16	Length of this header in bytes.
0x0E	UInt16	Number of sections.
0x10	UInt32	Offset to DATA section.
0x14	UInt32	Length of DATA section.
0x18	Byte[8]	Padding.
0x20	End of this file header

DATA

The DATA section starts with a header.

Offset	Type	Description
0x00	String	Section magic. Always DATA in ASCII.
0x04	UInt32	Length of this section.
0x08	End of this header

Wave Information Data Table

The DATA header is followed by a table that lists the entries of wave information data. All offsets are relative to the start of this table.

Offset	Type	Description
0x00	UInt32	Number of Wave Information Data Entries.
0x04	Byte[4]	Unknown. Always 0x01000000.
0x08	UInt32	Offset to the first Wave Information Group (O[1]).
0x0C	Byte[4]	Unknown. Always 0x01000000.
0x10	UInt32	Offset to the first Wave Information Group (O[2]).
...
O[x] + 0x00	Byte[4]	Unknown. Always 0x01000000.
O[x] + 0x04	UInt32	Offset to the x WSD Information Data Entry.
O[x] + 0x08	Byte[4]	Unknown. Always 0x01000000.
O[x] + 0x0C	UInt32	Offset to the x Note Event Table.
O[x] + 0x10	Byte[4]	Unknown. Always 0x01000000.
O[x] + 0x14	UInt32	Offset to the x Note Information Table.

WSD Information Data Entry

Offset	Type	Description
0x00	Float	Pitch
0x04	Byte	Pan (0–127)
0x05	Byte	SurroundPan (0–127)
0x06	Byte	FxSendA
0x07	Byte	FxSendB
0x08	Byte	FxSendC
0x09	SByte	MainSend
0x0A	Byte[22]	Padding

Note Event Table

All offsets are relative to the Wave Information Data Table.

Offset	Type	Description
0x00	UInt32	Number of Note Event Group Entry Tables.
0x04	Byte[4]	Unknown. Always 0x01000000.
0x08	UInt32	Offset to the first Note Event Group Entry Table (O[1]).
0x0C	Byte[4]	Unknown. Always 0x01000000.
0x10	UInt32	Offset to the second Note Event Group Entry Table (O[2]).
...
O[x] + 0x00	Byte[4]	Unknown. Always 0x01000000.
O[x] + 0x04	UInt32	Offset to the Note Event Group Entry (O[x]E).
O[x]E + 0x00	UInt32	Number of Note Event Entries.
O[x]E + 0x04	Byte[4]	Unknown. Always 0x01000000.
O[x]E + 0x08	UInt32	Offset to the first Note Event Entry.
O[x]E + 0x0C	Byte[4]	Unknown. Always 0x01000000.
O[x]E + 0x10	UInt32	Offset to the second Note Event Entry.
...

Note Event Entry

Offset	Type	Description
0x00	Float	Position
0x04	Float	Length
0x08	UInt32	Decay
0x10	Byte[4]	Padding

Note Information Table

All offsets are relative to the Wave Information Data Table.

Offset	Type	Description
0x00	UInt32	Number of Note Information Entries.
0x04	Byte[4]	Unknown. Always 0x01000000.
0x08	UInt32	Offset to the first Note Information Entry.
0x0C	Byte[4]	Unknown. Always 0x01000000.
0x10	UInt32	Offset to the second Note Information Entry.
...

Note Information Entry

Offset	Type	Description
0x00	UInt32	Wave number
0x04	SByte	Attack (-1–127)
0x05	SByte	InfoDecay (-1–127)
0x06	SByte	Sustain (-1–127)
0x07	SByte	Release (-1–127)
0x08	SByte	Hold (-1–127)
0x09	Byte	WaveDataLocationType: 0x0 = Index 0x1 = Address 0x2 = Callback
0x0A	Byte	NoteOffType: 0x0 = Release 0x1 = Ignore
0x0B	Byte	AlternateAssign
0x0C	Byte	OriginalKey
0x0D	Byte	Volume (0–127)
0x0E	Byte	InfoPan (0–127)
0x0F	Byte	InfoSurroundPan (0–127)
0x10	Float	InfoPitch
0x14	Byte[18]	Padding

Tools

The following tools can handle BRWSD files:

• BrawlBox, by Kryal and BlackJax96