Sphero Symphony
Sphero Symphony is the name (not even a trademark) given by SNK to the use of stereo in some early NeoGeo games.
As it can be seen in the Art of Fighting's source code file sys/SOUND.SRC, the process simply pans sound effects left, center, or right, depending on the sprites positions on the screen. Since the NeoGeo only has 1-bit panning for FM channels, there are only 3 different zones with constant power:
- Left, full volume
- Left + right, half volume
- Right, full volume
Panning is set by the game engine through special commands sent to the sound driver.
Nothing more than that.
Games bearing the logo
- Riding Hero
- Alpha Mission II
- Ninja Combat
- Cyber-Lip
- The Super Spy
- Mutation Nation
- Sengoku
- Burning Fight
- Ghost Pilots
- Last Resort
- Soccer Brawl
- Fatal Fury - King of Fighters
- Football Frenzy
- Crossed Swords
- Thrash Rally
- King of the Monsters 2 - The Next Thing
- Baseball Stars 2
- Art of Fighting
- Fatal Fury 2
- Andro Dunos