5.5.9 Corrections for Errors Caused by Misaligned Recording Equipment

5.5.9.1 Misalignment of recording equipment leads to recording imperfections, which can take manifold form.While many of them are not or hardly correctable, some of them can objectively be detected and compensated for. It is imperative to take compensation measures in the replay process of the original documents incurred, as no such correction will be possible once the signal has been transferred to another carrier.

5.5.9.2 Adjustment of magnetic digital replay equipment to match misaligned recordings requires high levels of engineering expertise and equipment. The relationship between the rotating heads and the tape path can be adjusted on most professional equipment, and for DAT recordings especially, this can lead to significant improvement in error correction or concealment, even making apparently unplayable tape audible. However, such adjustments require specialised equipment and only trained personnel should undertake them. Equipment should be returned to correct setting by trained service technicians after completing the transfer.