BS 7868-1996 Guide for calibration tapes for broadcast VTRs《广播磁带录像机校准带指南》.pdf
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1、BRITISH STANDARD BS 7868:1996 IEC 1295:1994 Guide for Calibration tapes for broadcast VTRs ICS 33.160.30BS7868:1996 This British Standard, having been prepared under the directionof the Electrotechnical Sector Board, was published underthe authority of the Standards Board and comesintoeffect on 15Au
2、gust1996 BSI 03-2000 The following BSI references relate to the work on this standard: Committee reference EPL/100/2 Draft for comment 88/32599 DC ISBN 0 580 26109 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by Technical Committee EPL/100
3、, Audio, video and multimedia systems and equipment, to Subcommittee EPL/100/2, Recording, upon which the following bodies were represented: Association of Professional Recording Services Limited British Broadcasting Corporation British Kinematograph, Sound and Television Society British Radio and E
4、lectronic Equipment Manufacturers Association British Tape Industry Association Federation of the Electronics Industry Independent Television Association (ITVA) Royal Television Society Amendments issued since publication Amd. No. Date CommentsBS7868:1996 BSI 03-2000 i Contents Page Committees respo
5、nsible Inside front cover National foreword ii 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Highband transverse track (IEC 347) 2 5 B format (IEC 602) 3 6 C format (IEC 558) 4 7 U-matic-H format (IEC 712, Amendment 1) 9 8 U-matic-SP format (IEC 712, Amendment 2) 11 9 L format (IEC 961) Mode
6、1 13 10 M2 format (IEC 1118) 17 11 D-1 format (IEC 1016) 18 12 D-2 format (IEC 1179) 19 13 Addresses of manufacturers 21 14 Care of calibration tapes 22 List of references Inside back coverBS7868:1996 ii BSI 03-2000 National foreword This British Standard has been prepared by Subcommittee EPL/100/2
7、and is identical with IEC1295:1994, Calibration tapes for broadcast VTRs, published by the International Electrotechnical Commission (IEC). IEC 1295:1994 is a technical report type3, which is collected data of a different kind from that which is normally published as an International Standard, and d
8、oes not necessarily have to be reviewed until the data it provides is considered to be no longer valid or useful. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Bri
9、tish Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard IEC 50 (806):1975 BS 4727 Glossary of electrotechnical, power, telecommunication, electronic, lighting and colour terms Part 3 Terms particular to telecomm
10、unications and electronics Group 10:1979 Recording and reproduction of sound and video terminology (Technically equivalent) IEC 347:1982 (HD 451 S1:1984) BS 4967:1983 Specification for transverse track video tape recorders (Identical) IEC 558:1982 (HD 573.S1:1990) BS 6758:1987 Specification for type
11、 C helical video tape recorders (Identical) IEC 712:1993 (EN 60712:1995) BS EN 60712:1996 Helical scan video tape cassette system using19mm (3/4 in) magnetic tape, known as U-format (Identical) IEC 961:1989 (EN 60961:1994) BS EN 60961:1994 Specification for helical-scan video tape cassette system us
12、ing12,65mm (0,5in) magnetic tape on type L (Identical) IEC 1016:1989 BS 7360:1990 Specification for helical-scan digital component video cassette recording system using19mm magnetic tape (format D-1) (Identical) IEC 1118:1993 (EN 61118:1993) BS EN 61118:1994 Specification for helical-scan video tape
13、 cassette system using12,65mm (0,5in) magnetic tape. Type M 2 (Identical) IEC 1179:1993 (EN 61179:1993) BS EN 61179:1993 Specification for helical-scan digital composite video cassette recording system using19mm magnetic tape; format D2 (NTSC, PAL, PAL-M) (Identical) Summary of pages This document c
14、omprises a front cover, an inside front cover, pages i and ii, pages1 to 22, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS7868:1996 BSI 03
15、-2000 1 1 Scope This technical report describes the contents of calibration tapes for various broadcast VTRs. The objective in using a calibration tape is to adjust the machine so that it will give optimum reproduction of a first-generation verified recording. The calibration signals recorded under
16、controlled conditions on a machine corresponding to the relevant VTR standard. The calibration procedure involves playing back the tape while making the necessary operational adjustments as described in the manufacturers manual. In addition, trial recordings and the adjustment of the record chain se
17、ttings should lead to a similar play-back quality as obtained from the calibration tape. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this technical report. At the time of publication, the editions indicat
18、ed were valid. All normative documents are subject to revision, and parties to agreements based on this technical report are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. Members of IEC and ISO maintain registers of current
19、ly valid International Standards. IEC 50(806):1975, International Electrotechnical Vocabulary (IEV) Chapter 806: Recording and reproduction of sound and video. IEC 347:1982, Transverse track video recorders. IEC 558:1982, Type C helical videotape recorders. IEC 602:1980, Type B helical video recorde
20、rs. IEC 712:1993, Helical-scan videotape cassette system using19mm (3/4 in) magnetic tape, known as U-format Amendment 1 (1993). IEC 961:1989, Helical-scan videotape cassette system using12,65mm (0,5in) magnetic tape on type L. IEC 1016:1989, Helical-scan digital component video-cassette recording s
21、ystem using19mm magnetic tape (format D-1). IEC 1118:1993, Helical-scan videotape cassette recording system using12,65mm (0,5in) magnetic tape on type M2. IEC 1179:1993, Helical-scan digital composite video-cassette recording system using19mm magnetic tape, format D-2 (NTSC, Pal, PAL-M). 3 Definitio
22、ns 3.1 calibration tape a magnetic tape on which signals have been recorded, corresponding to a specified characteristic, used to calibrate a reproducing chain IEC 50-806-05-58 3.2 reference tape an unrecorded magnetic tape with specified characteristics, selected as a reference, to enable a compari
23、sionto be made with other magnetic tapes or to measure characteristics of magnetic tape recordersIEC 50-806-05-59, modified NOTEIn other organizations there are other definitions of the terms calibration tape and reference tape. Organizations and manufacturers are encouraged to bring their definitio
24、ns in line with IEC definitions.BS7868:1996 2 BSI 03-2000 4 Highband transverse track (IEC 347) (625/50) NAME EBU highband transverse track “primary reference tape” APPLICATION FOR: VIDEO PLAYBACK ADJUSTMENT: PAL: frequency response, white level, bar tilt, pulse/bar ratio, K2T, KBAR, chroma/luma del
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