I went ahead and did the same as Bosco82, and yup, the sound is perfectly fine now.
Voice samples now play correctly.
Although with the slowROM check fix applied, there is an issue in the intro song (track 1 in Sound Menu).
The voice sample played at about 0:52-0:55 does not play.
Same in Canoe and in Higan.
This issue does not occur in vanilla tales_0b-cp3a patch (Higan).
Also, with the slowROM check fix applied, battles cause the game to freeze.
When entering a battle, it enters the battle screen, but nothing is there except for the background and battle menu boxes (no text though).https://i.imgur.com/L8ofqHR.jpg
The freeze that occurs in the middle of the conversation with Demitel still happens though.
Exact same spot as with vanilla tales_0b-cp3a patch.
Looks like that might not be slowROM check fix related after all.
I tested IDs 109C, 109D, and 109E, like Arkiokin.
But the SRAM saved correctly with both 109C and 109D (Japan Mario RPG).
SRAM issue persisted with 109E (Europe?), BUT the PAL Mario RPG is just the USA Mario RPG, just given its own ID.EDIT:
Chronosplit's Chrono Trigger hack expands the ROM to 48 Mbits ExHiROM.
Great hack by the way, it's the one I prefer.