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BSI
BS 6840-17:1991

BS 6840-17:1991

Current

Current

The latest, up-to-date edition.

Sound system equipment Methods for specifying and measuring the characteristics of standard volume indicators

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-04-1991

Publisher

British Standards Institution

Committees responsible
National foreword
Methods
1. Scope
2. Definitions
3. Reference indication
4. Reference voltage
5. Reference volume
6. Division of the scale
7. Amplitude-frequency response - Performance
     requirement
8. Response time
9. Overswing - Performance requirement
10. Return time - Performance requirement
11. Reversibility error - Performance requirement
12. Input impedance - Performance requirement
13. Distortion introduced by the standard volume
     indicator - Performance requirement
14. Temperature range - Performance requirement
15. Overload input level - Performance requirement
16. Rectifier - Performance requirement
17. Colour of scale and scale card
18. Mounting on panels - Presence of magnetic material
19. Mounting angle - Performance requirement
20. Classification of the characteristics to be
     specified
Figures
1. Connection of the standard volume indicator
2. Schematic diagram of the method of measurement
     of response time of the standard volume indicator
3. Scale of the standard volume indicator
Table
1. Attenuator characteristics 3,900 omega constant
     impedance
Annex
ZA. (informative) Other international publications
     quoted in this standard with the references of
     the relevant European publications
National annex
NA (informative) Cross-references

Defines the characteristics, methods of measurement, scale colours and standard scale markings, and requirements for a built-in or external attenuator for VU indicators (VU-meters) for use in recording studios and broadcast control rooms.

This standard gives the characteristics to be specified, performance requirements and the relevant methods of measurement for electro-mechanical volume indicators. The concept of “volume?? is a practical way of assigning a numerical value to the magnitude of electrical speech and music programme signals.

Since the response of the meter movement of such an indicator to the rapidly varying programme voltage is greatly dependent upon its dynamic characteristics, a standard for volume measurements shall therefore include a specification of these characteristics. The term “vu?? (pronounced “vee-you?? and written with lower case letters) is used to express volume in terms of vu above or below a specified reference level.

This standard does not deal with peak programme level meters which are the subject of IEC 268-10.

Committee
EPL/100
DevelopmentNote
Also numbered as IEC 60268-17 Supersedes 88/26018 DC (09/2005)
DocumentType
Standard
Pages
14
PublisherName
British Standards Institution
Status
Current

BS 6259:2015 Code of practice for the design, planning, installation, testing and maintenance of sound systems
DEFSTAN 00-250(PT3)SEC1-7/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTIONS 1-7 - OVERALL CONTENTS/SCOPE
DEFSTAN 00-250(PT1)/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 1: OVERARCHING PEOPLE-RELATED REQUIREMENTS
DEFSTAN 00-250(PT3)SEC11/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 11 - TRAINING
DEFSTAN 00-250(PT3)SEC13/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 13 - THE WORKPLACE
DEFSTAN 00-250(PT3)SEC8/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 8 - PEOPLE IN SYSTEMS
DEFSTAN 00-250(PT3)SEC9/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 9 - PEOPLE CHARACTERISTICS
DEFSTAN 00-250(PT3)SEC10/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 10 - SYSTEMS SAFETY
DEFSTAN 00-250(PT3)SEC15/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 15 - WORK EQUIPMENT
DEFSTAN 00-250(PT3)SEC12/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 12 - OPERATIONS, MAINTENANCE & SUPPORT
DEFSTAN 00-250(PT3)SEC16/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 16 - LIVING SPACES
DEFSTAN 00-250(PT3)SEC14/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 3: TECHNICAL GUIDANCE - SECTION 14 - THE ENVIRONMENT
DEFSTAN 00-250(PT2)/1(2008) : 2008 HUMAN FACTORS FOR DESIGNERS OF SYSTEMS - PART 2: PARTICULAR PEOPLE-RELATED REQUIREMENTS
BS 6840-10:1991 Sound system equipment Methods for specifying and measuring the characteristics of peak programme level meters
BS EN 60961:1994 Specification for helical-scan video tape cassette system using 12,65 mm (0,5 in) magnetic tape on type L
HD 483.10 : 200S1 SOUND SYSTEM EQUIPMENT - PART 10: PEAK PROGRAMME LEVEL METERS

IEC 60268-10:1991 Sound system equipment - Part 10: Peak programme level meters

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