Abstract: An acoustical visual sound device used for the visual interpretation of a received acoustical or electrical sound signal having a filter for passing the intelligence contained within a band of frequencies contained within the frequency spectrum of a received sound signal, a multistage amplifier which can be of the automatic gain control type, for amplifying the passed intelligence to a sufficient power level to operate an electro visual means connected at the output thereof throughout its operable visual variable range. The device can be used for pleasure when observing, in visual form, music, voice or other sounds. Or, it can be used as a means for identifying the source of a sound. It is operable in the audio range as well as in the range above and below the audio range. It can contain any number of channels, in which one of the channels can be used as a search or beat channel.

Abstract: This invention describes a visual sound device for use in the visual interpretation of a received electrical sound signal, which has an electro visual means that responds visually in amplitude to the amplitude variations of the intelligence contained within a band of frequencies contained within the frequency spectrum of a received electrical sound signal. The device consists of at least one channel, which has a filter that passes the intelligence contained within the band pass of the filter and an amplifier which amplifies the intelligence, a rectifier for rectifying the amplified intelligence, and, a power amplifier which amplifies the rectified intelligence to a sufficient power level to drive an electro visual means which is connected at the output thereof. The electro visual means used in this form of the invention is a spotlight, which varies visually in amplitude to the amplitude variations of the intelligence passed by the filter.