BS-EN-60268-16-1998 BS-6840-16-1998 IEC-60268-16-1998.pdf
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1、BRITISH STANDARD BS EN 60268-16:1998 BS 6840-16: 1998 IEC 60268-16: 1998 Sound system equipment Part 16: Objective rating of speech intelligibility by speech transmission index The European Standard EN 60268-16:1998 has the status of a British Standard ICS 17.140.50; 33.160.20 Licensed Copy: sheffie
2、ldun sheffieldun, na, Thu Nov 09 04:01:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 60268-16:1998 This British Standard, having been prepared under the direction of the Electrotechnical Sector Board, was published under the authority of the Standards Board and comes into effect on 15 July 199
3、8 BSI 04-1999 ISBN 0 580 29928 7 National foreword This British Standard is the English language version of EN 60268-16:1998. It is identical with IEC 60268-16:1998. It supersedes BS 6840-16:1989 which will be withdrawn on 2001-01-01. The UK participation in its preparation was entrusted by Technica
4、l Committee EPL/100, Audio, video and multimedia systems and equipment, to Subcommittee EPL/100/3, Equipment and systems in the field of audio, video and audiovisual engineering, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European
5、committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Fro
6、m 1 January 1997, all IEC publications have the number 60000 added to the old number. For instance, IEC 27-1 has been renumbered as IEC 60027-1. For a period of time during the change over from one numbering system to the other, publications may contain identifiers from both systems. Cross-reference
7、s Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in
8、the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are
9、responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 20, an inside back cover and a back co
10、ver. 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. Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:01:28 GMT+00:
11、00 2006, Uncontrolled Copy, (c) BSI BS EN 60268-16:1998 BSI 04-1999i Contents Page National forewordInside front cover Foreword 2 Text of EN 60268-165 Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:01:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii blank Licensed Copy: sheffieldun sheffi
12、eldun, na, Thu Nov 09 04:01:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60268-16 April 1998 ICS 33.160.01 Descriptors: Sound system equipment, warning system, sound alarm, evacuation of people, intelligibility, sound transmission, definitions, s
13、pecifications, measuring methods, tests, marking English version Sound system equipment Part 16: Objective rating of speech intelligibility by speech transmission index (IEC 60268-16:1998) Equipements pour systmes lectroacoustiques Partie 16: Evaluation objective de lintelligibilit de la parole au m
14、oyen de lindice de transmission de la parole (CEI 60268-16:1998) Elektroakustische Gerte Teil 16: Objektive Bewertung der Sprachverstndlichkeit durch den Sprachbertragungsindex (IEC 60268-16:1998) This European Standard was approved by CENELEC on 1998-04-01. CENELEC members are bound to comply with
15、the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat
16、 or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the off
17、icial versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee f
18、or Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1998 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. R
19、ef. No. EN 60268-16:1998 E Licensed Copy: sheffieldun sheffieldun, na, Thu Nov 09 04:01:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 60268-16:1998 BSI 04-1999 2 Foreword The text of document 100C/189/FDIS, future edition 2 of IEC 60268-16, prepared by SC 100C, Audio, video and multimedia subsyst
20、ems and equipment, of IEC TC 100, Audio, video and multimedia systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60268-16 on 1998-04-01. The following dates were fixed: Endorsement notice The text of the International Standard IEC 60268-16:1998 wa
21、s approved by CENELEC as a European Standard without any modification. Contents Page Foreword2 1Scope5 2Normative references5 3Definitions and abbreviations5 4Descriptions of the methods5 4.1General5 4.2The STI method6 4.2.1 General6 4.2.2 Precision of the STI method7 4.2.3 Limitations of the STI me
22、thod7 4.3The STITEL method7 4.3.1 General7 4.3.2 Precision of the STITEL method7 4.3.3 Limitations of the STITEL method7 4.4The RASTI method8 4.4.1 General8 4.4.2 Precision of the RASTI method8 4.4.3 Limitations of the RASTI method8 4.5Methods of measurement9 4.5.1 Method of measurement using an aco
23、ustic excitation signal9 4.5.2 Method of measurement using direct (electrical) injection of the test signal10 4.5.3 Simulation of occupancy noise10 4.5.4 Intelligibility tests using maximum length sequence (MLS) analysis equipment10 4.5.5 Simulation of occupancy noise10 4.5.6 Repetition of measureme
24、nts10 4.5.7 Analysis and interpretation of the results10 5Other methods of determining intelligibility11 5.1Phonetically balanced word scores (256 or 1 000 population)11 5.2Modified rhyme tests11 5.3Articulation index11 5.4Articulation loss of consonants11 Annex A (normative) Speech transmission ind
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