BAROC (File Format)

BAROC (Binary Audio Roll-Off Curve) is a file format used in Nintendo Switch games. It controls audio frequency roll-off.

File Format

The BAROC file format is a very simple format and consists of the following structure:

Offset	Type	Description
0x00	Char[4]	File magic. Always AROC in ASCII.
0x04	UInt16	Byte-order-mark. FE FF for big endian, FF FE for little endian.
0x06	UInt16	Version number.
0x08	Int32	Curve type: 0 = None 1 = Inverse 2 = Linear 3 = Exponential 4 = Segment
0x0C	Float	Roll-off start.
0x10	Float	Roll-off end. 0 if it lasts until the end of the sound?
0x14	Float	Hold distance.
0x18	Float	Unit distance.
0x1C	Float	Decay ratio.
0x20	Float	Culling start distance.

Version List

Version	Found in
0.2	Animal Crossing: New Horizons ARMS Game Builder Garage Mario Kart 8 Deluxe Nintendo Labo - Toy-Con 01: Variety Kit Nintendo Labo - Toy-Con 02: Robot Kit Nintendo Labo - Toy-Con 03: Vehicle Kit Nintendo Labo - Toy-Con 04: VR Kit Nintendo Switch Sports Ring Fit Adventure Splatoon 2 Splatoon 3 Super Mario Bros. Wonder Super Mario Maker 2 The Legend of Zelda: Breath of the Wild (Nintendo Switch)

Tools

The following tools can handle BAROC files:

• (none)