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1、BRITISH STANDARD BS 7063:1989 IEC 98:1987 Incorporating Amendment No. 1 Specification for Analogue audio disk records and reproducing equipment (Implementation of CENELEC HD 337 S3) UDC 681.844.001.4:681.85 + 681.844:620.1:006.3/.8 Licensed Copy: London South Bank University, London South Bank Unive
2、rsity, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7063:1989 This British Standard, having been prepared under the direction of the Electronic Equipment Standards Committee, was published under the authority of the Board of BSI and comes into effect on 28 February 1989 BSI 01-2
3、000 The following BSI references relate to the work on this standard: Committee reference EEL/22 Draft for comment 84/28569 DC ISBN 0 580 17129 9 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Equipment Standards Committee (E
4、EL/-) to Technical Committee EEL/22, upon which the following bodies were represented: British Broadcasting Corporation British Kinematograph, Sound and Television Society Council for Educational Technology for the United Kingdom Electronic Engineering Association Independent Television Association
5、Sound and Communication Industries Federation The following bodies were also represented in the drafting of the standard, through subcommittees and panels: Association of Professional Recording Studios Audio Engineering Society British Tape Industry Association Royal Photographic Society Training an
6、d Educational Systems Testing Bureau Amendments issued since publication Amd. No.Date of issueComments 6403September 1991 Indicated by a sideline in the margin Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS
7、 7063:1989 BSI 01-2000i Contents Page Committees responsibleInside front cover National forewordii 1Scope1 2Object1 Section 1. General 3Definitions1 4Units and symbols3 5Drawings3 6Scales for graphical presentation of data3 Section 2. Compatibility between analogue audio disk records and reproducing
8、 equipment 7The disk3 8The groove4 9Label information5 10Recording and reproducing characteristics5 11Reproducing equipment6 Section 3. Methods of measuring the characteristics of reproducing equipment for analogue audio disk records 12Information required from manufacturers of record playing units8
9、 13Conditions of measurement11 14Methods of measurement11 Appendix A Test records for wow and flutter22 Appendix B Measurement of signal/rumble ratio22 Appendix C Examples of test records for the measurement of channel sensitivity (Sub-clause 14.5), channel unbalance (Sub-clause 14.6), separation (S
10、ub-clause 14.7), signal response (Sub-clause 14.8.1) and separation response (Sub-clause 14.8.2)24 Appendix D Tracking ability (Sub-clause 14.9, Methods A, B and C)25 Figure 1 Groove17 Figure 2 Pickup cartridge (see Sub-clause 11.5)18 Figure 3 Rated recording and reproducing characteristics19 Figure
11、 4 Record types 30 and 25 (see Sub-clauses 7.1 and 7.2)20 Figure 5 Record type 17 (see Sub-clauses 7.1 and 7.2)21 Publications referred toInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 706
12、3:1989 ii BSI 01-2000 National foreword This British Standard has been prepared under the direction of the Electronic Equipment Standards Committee and is identical with IEC 98:1987 “Analogue audio disk records and reproducing equipment”, published by the International Electrotechnical Commission (I
13、EC). This British Standard is also in agreement with Harmonization Document HD 337 S3, published by the European committee for Electrotechnical Standardization (CENELEC). This standard supersedes BS 1928:1965 and BS 4852-1:1972 which are both withdrawn. Terminology and conventions. The text of the I
14、nternational Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. For the purposes of this standard, the referen
15、ces made in Appendix C to BS 1928, which is superseded by this standard, for catalogue numbers TCS 101, TCS 104 and TCS 105 should be read as referring to this British Standard, BS 7063. Cross-references International StandardCorresponding British Standard IEC 50 (806):1975BS 4727 Glossary of electr
16、otechnical, power, telecommunication, electronics, lighting and colour terms Part 3:Group 10:1979 Recording and reproduction of sound and video terminology (Technically equivalent) IEC 263:1982BS 6397:1983 Specification for scales and sizes for plotting frequency characteristics and polar diagrams (
17、Identical) BS 6840 Sound system equipment IEC 268-3:1988Part 3:1989 Methods for specifying and measuring the characteristics of sound system amplifiers (Identical) IEC 268-5:1989Part 5:1990 Methods for specifying and measuring the characteristics of loudspeakers (Identical) IEC 386:1972BS 4847:1989
18、Method of measurement of speed fluctuations in sound recording and reproducing equipment (Identical) IEC 417:1973BS 6217:1981 Guide to graphical symbols for use on electrical equipment (Identical) IEC 581-3:1978BS 5942 High fidelity audio equipment and systems: minimum performance requirements Part
19、3:1980 Specification for record playing equipment and cartridges (Identical) IEC 651:1979BS 5969:1981 Specification for sound level meters (Identical) Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7063:198
20、9 BSI 01-2000iii The Technical Committee has reviewed the provisions of IEC 27, IEC 38, IEC 268-3 and ISO 1101, to which references are made in the text and has decided that they are acceptable for use in conjunction with this standard. IEC 65:1985, to which reference is made in the text, has been h
21、armonized by CENELEC under HD 195 and is implemented by BS 415:1990 which is a related British Standard. The following related British Standards also exist: A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their
22、 correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. International StandardCorresponding British Standard ISO 406:1982BS 308 Engineering drawing practice Part 2:1985 Recommendations for dimensioning and tolerancing of size (Technically e
23、quivalent) IEC 27BS 5775 Specification for quantities, units and symbols. Parts are identical with the ISO 31 series of Parts IEC 38:1983BS 77:1958 Specification. Voltages for a.c. transmission and distribution systems ISO 1101:1983BS 308 Engineering drawing practice Part 3:1972 Geometrical toleranc
24、ing Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 26, 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 i
25、nside front cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c)
26、BSI BS 7063:1989 BSI 01-20001 1 Scope This standard applies to analogue audio disk records and the corresponding professional and domestic reproducing equipment. It excludes amplifiers and loudspeakers, methods of measurement for which can be found in IEC Publications 268-3 and 268-5 respectively. I
27、t also excludes all aspects of quality grading, which can be found in IEC Publication 581-3. 2 Object This standard consists of three sections, the objects of which are as follows: Section 1 lists all general information necessary to ensure correct interpretation of subsequent sections of this stand
28、ard. Section 2 specifies the parameters which are necessary to ensure compatibility between analogue audio disk records and the corresponding reproducing equipment. Section 3 lists and defines the most important parameters affecting the performance of reproducing equipment, and establishes agreed me
29、thods of measurement for these parameters. Section 1. General 3 Definitions The following definitions shall apply for the purposes of this standard. In cases where the definition appears in the International Electrotechnical Vocabulary (IEV) IEC Publication 50, the appropriate reference is stated in
30、 brackets after the heading for the definition. 3.1 monophonic record (IEV 806-03-67) a record which carries one channel of information in the form of lateral displacements of a spiral groove 3.2 stereophonic record (IEV 806-03-68) a record which carries two channels of information in the form of di
31、splacements of a single spiral groove in two mutually perpendicular directions 3.3 rated value exact theoretical or target value of a given parameter 3.4 nominal value approximate or abbreviated value of a given parameter 3.5 recorded velocity (v) (modified IEV 806-04-56) the alternating velocity im
32、parted to a stylus tip of negligible dimensions fitted to a pickup head of negligible mechanical impedance when tracing the groove of a record rotating at rated angular velocity 3.6 reference recorded velocity (v0) a recorded velocity of specified magnitude at a specified frequency 3.7 recorded leve
33、l (modified IEV 806-02-09) relationship between any recorded velocity (v) and a reference recorded velocity (v0) expressed on a logarithmic scale as follows: Recorded level = 20 lg () dB v v0 - Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2
34、006, Uncontrolled Copy, (c) BSI BS 7063:1989 2 BSI 01-2000 3.8 Recording and reproducing chains 3.8.1 recording chain (IEV 806-01-05) a chain for transmission of signals from the input of the system to and including the recording medium 3.8.2 reproducing chain (IEV 806-01-09) a chain for transmissio
35、n of the signals from the recording medium to the output of the system 3.9 Recording and reproducing characteristics For ideal reproduction, the recording characteristic is the mirror image of the reproducing characteristic, so that constant level signals at various frequencies applied to the input
36、of the recording chain shall result in constant level signals at the output of the reproducing chain. For practical reproduction, in order to minimize the effects of mechanical imperfections in the reproducing chain, the rated reproducing characteristic is not the mirror image of the rated recording
37、 characteristic at low frequencies. 3.9.1 recording characteristic (modified IEV 806-02-11) the recorded levels obtained, as a function of frequency, when constant level signals at various frequencies are applied to the input of a recording chain 3.9.2 reproducing characteristic (modified IEV 806-02
38、-14) the reproduced (output) levels obtained, as a function of frequency, when constant recorded levels at various frequencies are applied to the input of a reproducing chain 3.10 plain groove (IEV 806-03-14) any length of groove which carries no recording 3.11 lead-in groove (modified IEV 806-03-16
39、) the length of plain groove that starts near the periphery of the record and the pitch of which is greater than the normal recording pitch 3.12 received surface (modified IEV 806-03-26) the portion of the surface of a record on which the groove spacing is at normal recording pitch except on marker
40、spaces, if any 3.13 marker space (IEV 806-03-29) a portion of the recorded surface where the groove pitch has been increased to mark the separation of two successive bands of recording 3.14 lead-out groove (modified IEV 806-03-17) the length of plain groove which succeeds the recorded surface, and t
41、he pitch of which is greater than the normal recording pitch 3.15 finishing groove (modified IEV 806-03-18) the plain circular groove which succeeds the lead-out groove 3.16 tracking force the static force between stationary record and reproducing stylus when in the playing position Licensed Copy: L
42、ondon South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7063:1989 BSI 01-20003 4 Units and symbols Unless otherwise stated, the letter symbols for quantities and units are in accordance with IEC Publication 27. 5 Drawings Unless ot
43、herwise stated, the drawings are given in accordance with IEC and ISO standards. Amongst the most important of these are ISO Standards 406 and 1101. 6 Scales for graphical presentation of data 6.1 General Linear or logarithmic scales are recommended for graphical presentation. Linear decibel scales
44、are equivalent to logarithmic scales. Other kinds of scale, such as double logarithmic, should be avoided. When using decibel scales, the zero reference should, if possible, be the rated value. In those cases, where each of the scales refers directly to physical units, it is recommended to avoid a c
45、ombination of linear and logarithmic scales. Where quantities represented by abscissae and ordinates are of the same kind, it is recommended that the same unit length be used for both. Linear scales with remote zero point should be avoided as far as possible. For further information see IEC Publicat
46、ion 263. 6.2 Scales for frequency characteristics Graphs should be drawn with frequency in hertz as abscissae on a logarithmic scale, and the level expressed in decibels as ordinates on a linear scale. The scale ratio should be such that the length representing one decade of frequency is the same as
47、 the length representing 25 dB or 50 dB difference in level. The preferred length per decade is 50 mm. If the size of the graph is changed, the scale ratio should be left unaltered. Section 2. Compatibility between analogue audio disk records and reproducing equipment 7 The disk 7.1 Types of disk re
48、cord The following types of disk record shall be standard: 7.2 Dimensions of disk The dimensions for types 3033, 2533 and 3045 are shown in Figure 4, page 20. The dimensions for types 1733 and 1745 are shown in Figure 5, page 21. 7.3 Unbalance of disk The centre of gravity of disks having a small ce
49、ntre hole shall lie within an 8 mm diameter circle concentric with the centre of the centre hole. 7.4 Direction of rotation The direction of rotation of the disk shall be clockwise when viewed from the side being reproduced. Type designation Nominal diameter (cm) Nominal speed (rev/min) 3033 2533 1733 3045 1745 30 25 17 30 17 33 33 33 45 45 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 12:38:15 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7063:1989 4 BSI 01-2000 7.5 Direction of recording The direction of recording s