technoguy

High fidelity or hi-fi reproduction is a quality standard that means the reproduction of sound or images is very faithful to the original. High fidelity aims to achieve minimal or unnoticeable amounts of noise and distortion. The term high fidelity tends to be applied to any reasonable-quality home-music system, though some believe that a higher standard than this was intended, and in 1973, the German Deutsches Institut für Normung (DIN) standard DIN 45500 laid down mimimum requirements for measurements of frequency response, distortion, noise and other defects and gained some recognition in hi-fi magazines.