Voice Synthesizers Enable Short Messages

The ML22310 series voice synthesizers are capable of playing short voice samples such as warning sounds and voice guidance. The devices employ an interface called event input, which lets users easily add voice playback to existing designs. Event input starts playback of pre-recorded voice data via level shifting at the input terminal as the starting trigger. The pre-recorded voice data is stored internally and can be combined in up to 63 playback patterns or phrases. The series includes the ML22310 with mask ROM and ML22Q310 with flash memory, both of which operate without the aid of an MCU. OKI ELECTRIC INDUSTRY CO., LTD., Sunnyvale, CA. (408) 720-1900.