BFBNK File Format

NW > Sound Files > Bank File (FBNK)

This file contains instrument definitions. Every instrument references a wave file in a wave archive. Bank files are used by sequence sounds.

Block id	Description
0x5800	Info block

Info Block

Offset	Size	Description
0x0	4	Identifier ("INFO")
0x4	4	Block size
0x8	8	Reference to wave id table (0x0100)
0x10	8	Reference to instrument reference table (0x0101)

Instrument Reference Table

Offset	Size	Description
0x0	4	Number of entries
0x4		References to instruments (0x5900)

Instrument

Offset	Size	Description
0x0	8	Reference table for key regions (0x5901)

Key Region

Offset	Size	Description
0x0	8	Reference table for velocity regions (0x5902)

Velocity Region

Offset	Size	Description
0x0	4	Unknown
0x4	4	Flags. This field specifies which of the following fields is present.

Every optional field takes up exactly 4 bytes (if present).

Flag	Description
0x1	Original key
0x2	Volume
0x4	Pan
0x8	Pitch
0x10	0x00XXYYZZ: XX = Interpolation type, YY = Key group, ZZ = Ignore note off
0x200	Offset to reference to adshr curve (0x0000)

Region Reference Table

Every instrument has a bunch of key regions which are further divided into velocity regions. All note commands in a sequence sound specify a 'key' and 'velocity' value, which ultimately decide which key region and velocity region are chosen.

Offset	Size	Description
0x0	8	Reference to region info (0x6000, 0x6001 or 0x6002)

Type 0x6000 is stored as follows:

Offset	Size	Description
0x0	8	Reference to region

Type 0x6001 is stored as follows:

Offset	Size	Description
0x0	1	Region number 1
0x1	1	Region number 2
		...
		Padding to align to 8 bytes
	8	Reference to region 1
	8	Reference to region 2
		...

Type 0x6002 is stored as follows:

Offset	Size	Description
0x0	1	First region number
0x1	1	Last region number
0x2	6	Padding
0x8		References to regions