View source for Inverse Frequency Sound format

{{FormatInfo
|formattype=electronic
|subcat=Audio and Music
}}

The '''Inverse Frequency Sound format''' was used for sounds in some Apogee, id, and Softdisk games. It is closely related to some other formats including [[Crystal Caves Sound format]] and a format used for some of the sounds in Wolfenstein 3-D.

There is a 16-byte header (of which only 10 bytes are actually used, the rest being nulls), and a sound definition table preceding the section with actual sound data.

Games using this format included Catacomb, Commander Keen 1-3, Cosmo's Cosmic Adventures, Dangerous Dave, Dangerous Dave in Copyright Infringement, Dangerous Dave 2, Duke Nukem, Duke Nukem II, Hovertank 3-D, Math Rescue, Major Stryker, Monster Bash, Paragon, Pickle Wars, Realms of Chaos, Rescue Rover, Shadow Knights, Slordax, Word Rescue, and Xenopods.

== Format info ==
* [http://www.shikadi.net/moddingwiki/Inverse_Frequency_Sound_format Info on moddingwiki]

[[Category:Softdisk]]
[[Category:id Software]]
[[Category:Apogee Software]]