What is a Soundfont?

[supernova777]

The original SoundFont file format was developed in the early 1990s by E-mu Systems and Creative Labs. A specification for this version was never released to the public. The first and only major device to utilize this version was Creative's Sound Blaster AWE32 in 1994. Files in this format conventionally have the file extension of .SBK.

SoundFont 2.0 was developed in 1996. This file format generalized the data representation using perceptually additive real world units, redefined some of the instrument layering features within the format, added true stereo sample support and removed some obscure features of the first version whose behavior was difficult to specify. This version was fully disclosed as a public specification, with the goal of making the SoundFont format an industry standard. All SoundFont 1.0 compatible devices were updated to support the SoundFont 2.0 format shortly after it was released to the public, and consequently the 1.0 version became obsolete. Files in this and all other 2.x formats (see below) conventionally have the file extension of SF2.

Version 2.01 (often[citation needed] incorrectly called 2.1) of the SoundFont file format was introduced in 1998 with an E-mu sound card product called the Audio Production Studio. The 2.01 version added features allowing sound designers to configure the way MIDI controllers influence synthesizer parameters. The 2.01 format is bidirectionally compatible with 2.0, which means that synthesizers capable of rendering 2.01 format will also by definition render 2.0 format, and synthesizers that are only capable of rendering 2.0 format will also read and render 2.01 format, but just not apply the new features.

SoundFont 2.04 (there never was a 2.02 or a 2.03 version) was introduced in 2005 with the Sound Blaster X-Fi. The 2.04 format added support for 24-bit samples. The 2.04 format is bidirectionally compatible with the 2.01 format, so synthesizers that are only capable of rendering 2.0 or 2.01 format would automatically render instruments using 24-bit samples at 16-bit precision.

SoundFont is a registered trademark of E-mu Systems, Inc., and the exclusive license for re-formatting and managing historical SoundFont content has been acquired by Digital Sound Factory.[1]

[supernova777]

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