Converter of various exotic PCM-like formats to raw 8-bit signed PCM data, suitable for pre-listening and edit via various audio tools like Audacity, and usable by other arcade samplers like Namco C140 or Sega SCSP.

In the case of Gaelco GAE1 PCM source format, you must keep in mind such factor as a “fancy” Gaelco’s proprientary methods of source GAE1 rom addression and reading, which are vary from one game to another.

For example, Alligator Hunt “rebuilds” the GAE1 roms with a such way:

For “gfx_temp” we have this memory map:
0x0000000-0x03fffff ROM u48
0x0400000-0x07fffff ROM u47
0x0800000-0x0bfffff ROM u50
0x0c00000-0x0ffffff ROM u49

and we are going to construct this one for “gfx”:
0x0000000-0x01fffff ROM u48 even bytes
0x0200000-0x03fffff ROM u47 even bytes
0x0400000-0x05fffff ROM u48 odd bytes
0x0600000-0x07fffff ROM u47 odd bytes
0x0800000-0x09fffff ROM u50 even bytes
0x0a00000-0x0bfffff ROM u49 even bytes
0x0c00000-0x0dfffff ROM u50 odd bytes
0x0e00000-0x0ffffff ROM u49 odd bytes

 

So before this game sound conversion you need to split the u47 and u49 roms by halves.