I don't know exactly how the kidpix sounds were programmed, but I'll bet flash was light-years beyond it. Flash used wav, QuickTime, real Media, and other audio

I don't know exactly how the kidpix sounds were programmed, but I'll bet flash was light-years beyond it. Flash used wav, QuickTime, real Media, and other audio files that were probably made using a DAW or real instruments like they are today, dropped into a wysiwyg Editor. They were usually highly compressed so they could be usable to people on slow dial-up connections which is where that crunchiness comes. In a lot of earlier applications with sound, such as games, the sounds were programmed in assembly using tone and noise generators. It was super fast and lightweight, but obviously one of the first older techniques to get left behind when it was feasible.