Taito Arcade/Yamaha YM2610B

YM2610B is basically YM2610 with 2 extra FM channels used at some 90s Taito arcade hardware.
it is backward compatible with the original chip.

effects

extended channel 3

in ExtCh mode, channel 3 is split into one column for each of its four operators. feedback and LFO levels are shared. the frequency of each operator may be controlled independently with notes and effects. this can be used for more polyphony or more complex sounds.

all four operators are still combined according to the algorithm in use. for example, algorithm 7 acts as four independent sine waves. algorithm 4 acts as two independent 2op sounds. even with algorithm 0, placing a note in any operator triggers that operator alone.

info

this chip uses the FM (OPN), AY-3-8910/SSG, ADPCM-A and ADPCM-B instrument editors.

chip config

the following options are available in the Chip Manager window: