Abstract: To provide effective, self-learning and fun way to educate children, this electronic audio learning apparatus consists of the sensing section program which are stored in the ROM-pack. The D/A converting section and the piano IC generate audible analog voice output from the ROM-stored digital data and the musical keyboard. These two types of signals are sent to the book/keyboard selection switch to provide users with variety of sound service. The CPU calculates the address of the ROM-pack data/program from the input data detected by the sensing section and the sound effect section. The digital data which is fetched from the ROM-pack is converted to audible voice as it passes through the D/A converting section, LPF, the book/keyboard selection switch, the voice amplifier and the speakers, sequentially.