The AD1812 SoundPort Controller is a single chip audio subsystem for adding 16-bit stereo audio to personal computers. The AD1812 is compatible with Sound Blaster Pro, AdLib, and the Microsoft* Windows Sound System. The AD1812 provides an integrated audio solution for enhanced business audio, entertainment sound effects, and multimedia applications. The AD1812 audio subsystem combines an integrated digital audio controller, a powerful signal processor, a mixer, and a 16-bit stereo codec. The DOS games register set, the Windows Sound System register set, music synthesis hardware, an MPU-401 compatible UART interface, a game port (with timer), and a Plug and Play ISA interface are all contained on chip. The on-chip Plug and Play (PnP) routine provides configuration services for the internal logical devices and an external modem chipset. The AD1812 can record compress and playback voice, sound and music. The system provides all PC 95 audio conversion and compatibility requirements for a multimedia enabled PC. ( continued on Page 12)