A rotary head direct digital recording method is known to be able to achieve very high packing density in principle by almost ten times over stationary head recording.: The authors have developed a prototype model of a Rotary-head Digital Audio Tape recorder (R-DAT) using a small size cassette based on experimental specification of DAT conference. The prototype model has been designed conforming to the currently used three major sampling rates: 48/44.1/32 KHz, and also providing item number of music pieces, elapsed time, and so on.: This paper mainly describes the system design and the signal processing of the developed R-DAT system.
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