Of those, the Mockingboard has the best game support. Various configurations of the Mockingboard were available with different combinations of [[AY]]-3-8910 and speech synthesiser chips, connected via 6522s which also provide timed interrupt sources for the CPU. The best-supported configuration carries two AY-3-8910s and two 6522s.
Some software products even supported more than one Mockingboard. Ultima V supported two boards, for a total of 12 voices, of which it used eight.
==Links==