Metadata

Prerequisite

This section requires a basic understanding of SoundFont 2.04 and binary.

SoundFont metadata is accessible through SoundFont3.metaData. This data mainly used for library management and player config.

• Only ifil, isng and INAM are essential.
• All chunks must have even number of bytes.
• String chunks must terminate with 1 or 2 byte zero padding.

ifil - SoundFont version

Accessible through SoundFont3.metaData.version.

Version for detecting parsing compatability - v2 and v3 are different.

// Equates to version 2.04
uint16_t soundFontVersionMajor = 2 // 2 byte
uint16_t soundFontVersionMinor = 4 // 2 byte
// 4 byte total

isng - Sound engine

Accessible through SoundFont3.metaData.soundEngine

Indentifies wavetable sound engine to use. Default value is "emu8000", also known as the MIDI synth.

char[] soundEngine = "emu8000" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

INAM - SoundFont bank

Accessible through SoundFont3.metaData.name

Name of the SoundFont bank for mapping MIDI signals to sample. The default value is "General MIDI".

char[] soundFontBank = "General MIDI" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

irom - Sound ROM samples reference

Accessible through SoundFont3.metaData.rom

Identifies a particular wavetable sound data ROM. Requires iver if defined.

char[] wavetableRom = "lmgm" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

iver - Sound ROM revision

Accessible through SoundFont3.metaData.romVersion

Version of wavetable sound data ROM. Requires irom if defined.

// Equates to version 3.14
uint16_t romVersionMajor = 3 // 2 byte
uint16_t romVersionMinor = 14 // 2 byte
// 4 byte total

ICRD - Creation mm/dd/yy

Accessible through SoundFont3.metaData.creationDate

SoundFont bank creation date in "Month, Day, Year" format. Should ideally be 32 bytes or less. It is mainly used for library management.

char[] creationDate = "May, 1, 1995" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

IENG - SoundFont author

Accessible through SoundFont3.metaData.author

char[] soundFontAuthor = "John Smith" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

IPDR - For this product

Accessible through SoundFont3.metaData.product

The specific product the SoundFont is intended for.

char[] soundFontProduct = "sbawe32" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

ICOP - Copyright

Accessible through SoundFont3.metaData.copyright

char[] copyright = "Copyright (c) 1995 E-mu Systems. Inc" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

ICMT - Comments

Accessible through SoundFont3.metaData.comments

char[] comments = "No comment." // 0 to 65536 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total

ISFT - Tool created SoundFont

Accessible through SoundFont3.metaData.createdBy

Name tools used to create or modify soundfont.

char[] createdBy = "Preditor 2.00a" // 0 to 256 byte
char[] zeroPadding = 0 // 1 or 2 byte
// Even number of byte total