High speed recording and reproducing apparatus for avoiding cross talk during insert-recording

PCT No. PCT/JP96/00586 Sec. 371 Date Feb. 10, 1997 Sec. 102(e) Date Feb. 10, 1997 PCT Filed Mar. 8, 1996 PCT Pub. No. WO96/28813 PCT Pub. Date Sep. 19, 1996In a digital VTR to which this invention is applied, recording heads 51a, 51b, reproduction heads 52a, 52b and an erase head 53 are disposed on a rotary drum 50 so that the recording heads 51a, 51b and the erase head 53 do not scan tracks for a time period during which the reproduction heads 52a, 52b are scanning tracking areas 2 and speech areas 3. In the case where, e.g., speech signal of channel #1 is insert-recorded, an approach is employed to separate, at a reproduction signal processing circuit 67, speech signal of channel #2 of interleaved speech signals reproduced by the reproduction heads 52a, 52b to deliver it to a recording signal processing circuit 46 through a selector switch 45b. Further, the speech signal of the channel #2 and new speech signal of the channel #1 delivered through a terminal 42a are interleaved by the recording signal processing circuit 46 to record such interleaved signals into the speech areas 3 by the recording heads 51a, 51b. Thus, it can be prevented that crosstalk of recording current or erase current takes place in reproduction signal corresponding to speech signal. As a result, insert-recording of speech signal can be securely carried out. Namely, in this digital VTR, there is no degradation of S/N of reproduction signal resulting from crosstalk of the recording signal or the erase current, and a speech signal of a certain channel of plural channels can be insert-recorded.