JPH03222175A - Editing device - Google Patents

Abstract

PURPOSE:To exactly correct an editing section by registering beforehand delay time in a control device, and detecting the relative speed of a recording medium to the reference speed at the time of pushing a push button at the beginning and the end of the editing section, and further, executing correction by the product of the delay time and the relative speed. CONSTITUTION:Response delay time Td1 up to recognition after the pushing of the push button is measured by the control device 33, and is assembled in the correction processing A 34 of the control device 33, and the response delay time Td2 of an operator is registered in the correction processing B 35. The recording media of a magnetic recording device 31 for reproducing and a magnetic recording device 32 for recording are reproduced, and are monitored by monitors A 41 and B 42, and when the button 36 is pushed at the end of part of the editing section, the positions of the media (time Tim) are measured by detection processings A 38, B 37. The deviation time Tdr of the section is obtained from the reference reproducing speed Vn and the reproducing speed Va of the medium by the correction processing C 39. Accordingly, the time Tre of the beginning or the end of the section to be edited can be corrected so as to be Tre = Tim - Tdr by the correction processing D 40, and the exact editing section correction can be executed at any reproducing speed.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an editing device for editing a magnetic recording medium on which video and audio are recorded.

Conventional Techniques Editing of magnetic recording media can be easily performed by copying (dubbing) by operating the magnetic recording device 11 for reproduction and the magnetic recording device 12 for recording using the control device 13 as shown in FIG. Due to the dramatic increase in work, there is an urgent need to improve work efficiency.Under these circumstances, the magnetic recording device for reproduction 11 and the magnetic recording device for recording 1
The section to be edited can be edited by playing back the video and audio from the magnetic recording medium loaded in the magnetic recording medium 2 at a desired speed, and pressing the button on the control device 13 at the beginning and end of the editing section while the operator monitors it. Work efficiency has been improved through input methods.

Furthermore, as shown in FIG. 3, the above method poses a problem of a discrepancy 23 between the section 21 that is supposed to be edited and the section 22 that is actually registered due to the delay in reaction by the control device 13 and its operator. To prevent this from occurring, the control device 1
This problem is solved by registering in advance the delay time determined by 3 and the operator in the control device 13 and making corrections.

Problem to be Solved by the Invention However, in the conventional method, except for static playback, correction is made based on the delay time during standard speed playback, regardless of the speed of the magnetic recording medium when the button is pressed. When playing at speeds other than speed, the gap between the section that should be edited and the section that is actually registered may become larger.

The present invention is intended to solve the above-mentioned problems, and aims to input accurate editing sections.

Means for Solving the Problems In order to achieve the above object, the present invention registers the delay time caused by the control device and its operator in advance in the control device,
The speed relative to the standard speed of the magnetic recording medium when the button is pressed at the beginning and end of the editing section is detected, and correction is performed using the calculated value of the product of the delay time and the relative speed.

Effect of the Invention By using the above-described means, the present invention can accurately correct the editing section at any playback speed of the magnetic recording medium.

EXAMPLE An example of the present invention will be described below with reference to FIG.

The reaction delay time Tdl from when a button is pressed until it is recognized in the control device 33 is measured and incorporated in advance into the correction process A34 of the control device 33, and the reaction delay time Td2 of the operator of the control device 33 is manipulated. Correction process B3
Register in step 5.

Furthermore, the video and audio of the magnetic recording medium loaded in the magnetic recording device 31 for playback or the magnetic recording device 32 for recording is played back at a desired speed, and the operator monitors it on the monitor A41 or monitor B42 while editing the editing section. Detection process A37 of the control device 33 to detect the position (time T) of the magnetic recording medium when the button 36 of the control device 33 is pressed at the beginning and end of the
Then, the reproduction speed v3 of the magnetic recording medium is measured by the detection process B38 of the control device 33. Here, the standard reproduction speed V of the magnetic recording medium. Therefore, the deviation time Tdr at the beginning or end of the editing section on the magnetic recording medium is corrected by the correction process C39.
"rdr= (Ta++Td2) X (Va /
Vn). Therefore, the start or end time Tr of the section to be edited is the start or end time T of the actually registered section, and therefore, in the correction process MD40, T re = T is
It can be corrected as Tdr.

Effects of the Invention As is clear from the above explanation, according to the present invention, it is possible to accurately correct the editing section at any playback speed of the magnetic recording medium, and to maintain the efficiency of the editing work of the magnetic recording medium. It is possible to provide a device that can achieve high precision.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an editing device according to an embodiment of the present invention, FIG. 2 is a block diagram of a conventional editing device, and FIG. 3 is a schematic diagram for explaining problems with the conventional device. 31... Magnetic recording device for reproduction, 32...
・Magnetic recording device for recording, 33...Control device, 3
4...Delay time correction processing A by the control device 33, 35...*Delay time correction processing B by the operator of the q'in device 33, 36...Button , 37・
...Magnetic recording medium position detection processing A, 38...
...Detection processing of reproduction speed of magnetic recording medium B, 39.
...Correction processing for deviation time C140 ...Correction processing for actually registered sections D, 41 ...Monitor for magnetic recording device for reproduction, 42 .... Monitor for recording magnetic recording device

Claims (1)

[Claims] A device that operates the editing of a magnetic recording medium on which video and audio are recorded, and which sets the beginning and end of an editing section while playing back the magnetic recording medium that is the object to be edited at a desired speed, and edits the editing section. When inputting the information, to avoid a discrepancy between the section that should be edited and the section that is actually registered due to a delay in the reaction of the device itself or its operator.
An editing device that performs correction using a value calculated from a delay time measured in advance by the device itself and its operator, and a playback speed of a magnetic recording medium at the time of inputting the editing section.