You would need to use a hex editor to manually extract the wave files from the sound.cmp. In principle, it is similar to editing a text file in a word processor, and saving individual paragraphs to new files.
I found a program (
Parse-O-Matic Free Edition) that may be able to extract all the wave files, but I have not had time to look at the manual to see if learning enough of its scripting language to do this would be faster than manually doing it.
