4 ms·

I'd perhaps be slightly suspicious of the explanation as Sega didn't sell IP to Sammy, the companies merged (the general holding company for the group is Sega S

I'd perhaps be slightly suspicious of the explanation as Sega didn't sell IP to Sammy, the companies merged (the general holding company for the group is Sega Sammy Holdings, but in the west we mostly only see the Sega side of the business). If they got that wrong, would the rest be right? AFAIK the ring effect is FM synth generated (it's not like the Mega Drive is very good at digitised audio), so it's probably original to the game, but I suspect random cash register manufacturers are just ripping it off myself, rather than actually licencing it (are two notes and some synth parameters copyrightable in the end? probably depends on how much you can spend on lawyers...).

Dwedit 4y ago
Ring sound effect is a square wave using the sega master system's sound channels, not an FM synthesis effect using the Yamaha FM chip.
- mikepavone 4y ago
  This is incorrect. While some sound effects in the Sonic games on the MD/Genesis do use the PSG, the ring sound is not one of them. I double checked just now using the oscilloscope view in my emulator. Looks like the ring sound effect alternates between channels 3 and 4 depending on which way it's panned (unclear why it's done that way since any FM channel can be panned left or right).
  - Dwedit 4y ago
    Crap, you're right, I was thinking of the Jump sound effect.
  - donkdonk 4y ago
    It might have something to do with surround? https://rec.games.video.classic.narkive.com/cEZltqT1/sega-genesis-stereo-output-seems-to-have-included-matrixed-surround-sound https://rec.games.video.classic.narkive.com/cEZltqT1/sega-ge...