So, for my hack project, I was planning on adding some new Pokémon, and I thought it would be fun to give them retro-style cries. Looking through the Emerald disassembly, though, only the Hoenn Pokémon's cries seem to be listed in cry_id_table.inc, which leads me to believe that the cries of Kanto and Johto Pokémon are handled differently, presumably in a way more similar to how they were handled in RGBY/GSC.
Taking as a given that I'm okay with using modifications of Generation I~II cries, how might I go about creating new variations of those cries and assigning them to Pokémon?
Who has lost his tail? The forgotten one of the ship that sails the cosmos.