VERY nice work with this update!
I wanted to post to confirm that the updated version of DingooSNES that kowkar77 mentioned/linked does indeed have sound, and that I was able to bring my old save states over by renaming them to .zip, extracting them, renaming the file inside to "DingooSNES", re-zipping them, and renaming them back to .sv#. A minor inconvenience but no big deal. SRAM files seem to have carried over with no change.
My issue with region/language in DingooSMS was also solved by holding down select when launching and changing the region. Fantastic!
lion_rsm, if you're following this thread, thank you for your work. This is release feels very polished and I'm very impressed with DingooSMD.