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BS EN 61237-4:1998

Current
Current

The latest, up-to-date edition.

Broadcast video tape recorders. Methods of measurement Analogue audio performance measurements
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-15-1998

Publisher

British Standards Institution

1 General
    1.1 Scope and object
    1.2 Normative references
    1.3 Definitions
2 Manual and automatic measurements
3 Procedure of measurement
4 Environmental conditions
5 Measurements on analogue audio baseband recording
    using bias
    5.1 Reproducing performance using calibration tape
    5.2 Overall performance using reference tape
6 Measurement on analogue audio recording using
    frequency modulation (FM audio)
    6.1 Reproducing performance using calibration tape
    6.2 Overall performance using reference tape
7 Special measurements
    7.1 Measurements on FM carrier (unmodulated carrier
          and deviation)
    7.2 Measurements on AGC (amplitude characteristic;
          attack time; hold time)
    7.3 Measurements on switchable noise reduction circuits
    7.4 Measurements on non-switchable noise reduction
          systems (in combination with a non-switchable AGC)
    7.5 Polarity test
Annexes
A Method of measurement for magnetic tape flux
B Bibliography
ZA (normative) Normative references to international
   publications with their corresponding European publications

Describes methods of measurement and test signals for the analogue audio part of equipment for recording/reproduction of TV signals on magnetic tape reels or cassettes.

Committee
EPL/48
DevelopmentNote
Also numbered as IEC 61237-4 Supersedes 93/216468 DC (11/2005)
DocumentType
Standard
Pages
22
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
NBN EN 61237-4 : 1998 Identical
EN 61237-4:1997 Identical
DIN EN 61237-4:1998-07 Identical
I.S. EN 61237-4:1998 Identical
NF EN 61237-4 : 1998 Identical
SN EN 61237-4 : 1997 Identical

IEC 60268-8:1973 Sound system equipment - Part 8: Automatic gain control devices
HD 483.3 : 200S2 SOUND SYSTEM EQUIPMENT - AMPLIFIERS
EN 61041-3:1995 Non-broadcast videotape recorders - Methods of measurement - Part 3: Audio characteristics for FM recording
IEC 60268-3:2013 Sound system equipment - Part 3: Amplifiers
ANSI S4.6 : 82(R1992) RECORDED FLUX OF MAGNETIC SOUND RECORDS AT MEDIUM WAVELENGTHS, METHOD OF MEASURING
HD 574 : 1990 TYPE B HELICAL VIDEO RECORDERS
EN 60094-3:1996/A3:1996 MAGNETIC TAPE SOUND RECORDING AND REPRODUCING SYSTEMS - PART 3: METHODS OF MEASURING THE CHARACTERISTICS OF RECORDING AND REPRODUCING EQUIPMENT FOR SOUND ON MAGNETIC TAPE
EN 61105:1993 Reference tapes for video tape recorder systems
EN 61041-1 : 1995 Non-broadcast video tape recorders - Methods of measurement - Part 1: General video (NTSC/PAL) and audio (longitudinal) characteristics
IEC TR 61295:1994 Calibration tapes for broadcast VTRs
IEC 61213:1993 Analogue audio recording on video tape - Polarity of magnetization
IEC 61041-3:1993 Non-broadcast video tape recorders - Methods of measurement - Part 3: Audio characteristics for FM recording
IEC 60094-2:1994 Magnetic tape sound recording and reproducing systems - Part 2: Calibration tapes
IEC 61105:1991 Reference tapes for video tape recorder systems
HD 483.1 : 200S2 SOUND SYSTEM EQUIPMENT - GENERAL
IEC 60268-1:1985 Sound system equipment. Part 1: General
EN 61213:1994 Analogue audio recording on video tape - Polarity of magnetization
IEC 60094-3:1979 Magnetic tape sound recording and reproducing systems - Part 3: Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape
EN 60651:1994/A2:2001 SOUND LEVEL METERS (IEC 60651:1979/A2:2000)
IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
DIN 45520:1973-01 MAGNETIC TAPE RECORDERS - MEASUREMENT OF THE ABSOLUTE LEVEL OF THE MAGNETIC FLUX AND ITS FREQUENCY RESPONSE ON MAGNETIC TAPES
HD 483.2 : 200S2 SOUND SYSTEM EQUIPMENT - EXPLANATION OF GENERAL TERMS AND CALCULATION METHODS
EN 61260:1995/A1:2001 ELECTROACOUSTICS - OCTAVE-BAND AND FRACTIONAL-OCTAVE-BAND FILTERS
IEC 60651:1979+AMD1:1993+AMD2:2000 CSV Sound level meters

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