PROCESS FOR PRODUCING A PRE-RECORDED RECORDING MEDIUM FOR A DIGITAL SOUNDRECORD AND APPARATUS FOR MAKING THE SAME

摘要

The invention relates to a method of and an arrangement for recording a digital audio signal on a recording medium (20'), the digital audio signal being reproduced from a master medium (7) and stored in a digital storage medium (10, 90, 90') at a specific first bit rate , after which it is read from the digital storage medium and recorded on the recording medium at a second bit rate. The digital audio signal in the form of a first digital information signal comprising channel words of n data bits is stored in a track (Ta.i) on the master medium. This signal is converted in an n-m demodulator (9, 15), the n-bit channel words being converted into m-bit information words, where n m. After this the signal is stored in the digital storage medium (90, 90') as the second digital information signal. After read out from the storage medium (90,90') the second digital information signal is converted into a third digital signal, which substantially corresponds to the first digital information signal, in an m-n modulator (11, 36), in which the m-bit information words are reconverted into n-bit channel words. This enables the storage capacity of the digital storage medium to be reduced. IMAGE