Visual sound device

摘要: This invention describes a visual sound device for use in the interpretation of received electrical signal, which has an electro means that responds visually amplitude to variations intelligence contained within band frequencies frequency spectrum signal. The consists at least one channel, filter passes pass and amplifier amplifies intelligence, rectifier rectifying amplified and, power rectified sufficient level drive is connected output thereof. used this form spotlight, varies passed by filter. can be pleasure, such as when it observe, form, music, voice, or other signals present radio, stereo, public address system, phonograph, tape player, etc. Or, identifying sources audio range, well ranges below above range. contain any number different channels. One channels contains filter, manually adjustable center frequency, gives search feature, enables operator signal particular bit information range device, also, incorporates automatic gain control compensate changes strength