Time-compressed signal recording and reproducing process

摘要

Recording is carried out with time compression at an increased tape longitudinal speed and an increased head drum speed of rotation. Reproduction is carried out at a set tape longitudinal speed and at the same increased or slightly reduced head drum speed of rotation. Conversion into real time and the frequency position for real time reproduction are ensured by electronic memories into which the signal repeatedly generated by overscanning is written and from which it is read out during reproduction.