lecture: Finish Him!
Reversing Midway Arcade Audio With DeDCS
For a decade from the early 90's to the early 2000's, Williams' Digital Compression System (DCS) audio hardware reigned supreme in arcades and casinos, providing amazing sounding music, voice-overs, and effects, blowing competing systems out of the water.
This talk will reverse the DSP hardware, firmware, and algorithms powering the DCS audio compression system, used on Midway coin-ops and Williams/Bally pinballs, like Mortal Kombat II/3/4, Killer Instinct 1/2, Cruis'n USA, and Indiana Jones, among others.
A tool called DeDCS will be presented, which can extract, decompress, and convert the proprietary compressed audio data from a DCS game's sound ROMs into regular WAV format, taking you back to '92, when you tossed that first quarter into MKII, and Shao Kahn laughed in your face...
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