Analog Recorders2012
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چکیده
Sound recording has taken many forms as technological developments created new and improved ways of storing information. The earliest attempts to capture and reproduce sound used mechanical methods, as Edison’s machines that connected a large horn to a tiny stylus that traced grooves in a rotating cylinder. Optical systems have long been used for film sound, but analog optical systems are complicated to record and tend to be noisy. The system best adapted to sound recording has been the magnetic approach, where the sound is converted first to an electrical analog and then to a proportional magnetic flux that leaves a pattern of magnetization on a medium that can retain the signal for a long time.
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