BS EN 61120-3 discusses a digital audio tape recorder reel-to-reel system, using 6.3 mm magnetic tape, for professional use with a focus on format B. BS EN 61120-3 is the third part of the multi-series on digital audio tape recorder reel-to-reel system that provides modulation of a binary data sequence (“incoming data”) into a record signal waveform (“output wave form”) is specified. Next, a synchronization pattern violating the modulation rules is defined. The data to be recorded onto the main tracks are first channel-coded. A non-D.C.-free, run-length-limited code called HDM-1 is used.
The output waveform is defined by two cells for each input data bit. Only transitions in the output
waveform are defined the output waveform is polarity-free. Rules for generating a pair of output waveform cells for each input bit are defined in the following formulation and bit to waveform transitions are defined.
BS EN 61120-3 on digital audio tape recorder reel-to-reel system is useful for:
BS EN 61120-3 discusses main track recording and sub-track recording.
BS EN 61120-3 gives guidance for modulation of a binary data sequence (“incoming data”) into a record signal waveform (“output wave form”) and a synchronization pattern violating the modulation rules is defined
BS EN 61120-3 will help you to understand digital audio reel-to-reel recording and reproducing systems.IEC 61120-3:1991