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MUS_(Id)
Music (MUS) is a music format created by Jason Blochowiak and Bobby Prince for Doom (DOS). The layout is almost identical to a MIDI-0 file, only with a smaller header. Its uses the standard MIDI syntax, but since it's a type-0 style, it can only play one track of audio instructions. The format was used in all of the Doom-derivative games through the mid 1990s.
To create MUS files, John Romero created a tool called IMUSE (not to be confused with LucasArts iMUSE) that would convert MIDI files in to MUS files, and could also convert digital sound effects into MIDI or PC Speaker equivalents.
1993-12-10 Doom (DOS)
1994-04-01 Raptor: Call of the Shadows (DOS)
1994-10-10 Doom II: Hell On Earth (DOS)
1994-12-23 Heretic: Shadow of the Serpent Riders (DOS)
1995-09-30 Hexen: Beyond Heretic (DOS)
1996-05-15 Strife (DOS)
1996-05-31 Final Doom (DOS)
1996-??-?? Chex Quest (DOS)
1996-??-?? Chex Quest 2 (DOS)
Vladimir Arnost has written up the specs of the MUS format, the text file is encoded in Unicode.
The MUS format's timing is based on ticks, but the length of a tick is not stored in the file. This means you must know beforehand how long a tick is in order play the song at the proper tempo. All games using the Doom engine and its derivatives should be played at 140 Hz. The only game to use a different playback rate is Raptor: Call of the Shadow which is 70 Hz. Since Raptor is the one-off, most MUS players are hard-coded to playback at 140 Hz, making playback of Raptor's music (or songs eith custom timing) inaccurate.
- shikadi.net/moddingwiki/MUS_Format - Shikadi format page.
- http://www.vgmpf.com/Wiki/index.php?title=MUS - Source: vgmpf