Files in this and all other 2.x formats (see below) conventionally have the file extension of. 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. This version was fully disclosed as a public specification, with the goal of making the SoundFont format an industry standard. 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. Files in this format conventionally have the file extension of.
The first and only major device to utilize this version was Creative's Sound Blaster AWE32 in 1994. A specification for this version was never released to the public. The original SoundFont file format was developed in the early 1990s by E-mu Systems and Creative Labs.
A detailed description can be found in the specification, which is currently only available as a copy on various company sites. The newest version of the SoundFont file format is 2.04 (often incorrectly called 2.4).
