(registered 2026-02-05, last updated 2026-02-05)

Media type name: audio

Media subtype name: soundfont

Required parameters: N/A

Optional parameters: N/A

Encoding considerations: binary

Security considerations: SoundFonts do not contain any executable media, and no encryption is provided. However, as they contain audio files, it is possible that sensitive or copyrighted material may be contained in them.

Interoperability considerations: There are many SoundFont players and writers, such as TiMidity++, FluidSynth, Polyphone, and Swami.

Published specification: http://www.synthfont.com/sfspec24.pdf

Applications which use this media: Software for MIDI playback, music related software.

Fragment identifier considerations: N/A

Restrictions on usage: N/A

Additional information:

1. Deprecated alias names for this type: N/A
2. Magic number(s): sfbk
3. File extension(s): sf2
4. Macintosh file type code: N/A
5. Object Identifiers: N/A

Person to contact for further information:

1. Name: Aria Barak
2. Email: emailariabk&gmail.com

Intended usage: COMMON

SoundFonts are generally used for MIDI playback and audio sampling or synthesis.

Author/Change controller: N/A