Inventions and Commercial Achievements
Richmond incorporated Richmond Sound Design (RSD) in 1972, the first company to produce an off-the-shelf theatre sound design console (the Model 816) in 1973. In 1975, Richmond wrote an engineering brief for the Audio Engineering Society, entitled "A Practical Theatrical Sound Console", about a solution for mixing more than 100 inputs for a theatrical production. RSD produced the first off-the-shelf computerized modular theatre sound design control system (Command/Cue) in 1985. He received a US Patent for his invention, the "Automatic Cross-fading Circuit" which was trademarked Auto-Pan on February 25, 1975.
Richmond designed and produced a show control tool called the AudioBox, intended for complex show control functions for interfacing a wide variety of theatrical equipment such as intelligent lighting. The AudioBox won a Thea Award in 2000, given by the Themed Entertainment Association.
Read more about this topic: Charlie Richmond (inventor)
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