Electronic musical mobile

作者： Lawrence J. Greenberg , Gregory E. Hyman

DOI:

关键词: Key (music) 、 Loudspeaker 、 Quality (physics) 、 Loudness 、 Engineering 、 Energy storage 、 Energy (signal processing) 、 Electronic engineering 、 Musical 、 Electronic circuit

摘要: A mobile is rotated by an energy storage device to which periodically transferred a motor in turn controlled electronic circuit. The circuit simultaneously controls loudspeaker produce wide variety of music with variations tune, tonal quality, key, tempo, and loudness.