IEEE-269A-2007.pdf
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1、IEEE Std 269a-2007 (Amendment to IEEE Std 269-2002) IEEE Standard for Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets Amendment 1 IEEE 3 Park Avenue New York, NY 10016-5997, USA 7 September 2007 IEEE Communications Society Sponsored by the
2、Transmission, Access and Optical Systems Committee 269a TM Recognized as an IEEE Std 269a-2007 American National Standard (ANSI) (Amendment to IEEE Std 269-2002) IEEE Standard for Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets Amendment 1
3、Sponsor Transmission, Access and Optical Systems Committee of the IEEE Communications Society Approved 24 August 2007 American National Standards Institute Approved 6 March 2007 IEEE-SA Standards Board Abstract: This document amends IEEE Std 269-2002. Keywords: analog telephones, digital telephones,
4、 electroacoustic measurements on telephones, handsets, headsets, telephony, voice transmission performance The Institute of Electrical and Electronics Engineers, Inc. 3 Park Avenue, New York, NY 10016-5997, USA Copyright 2007 by the Institute of Electrical and Electronics Engineers, Inc. All rights
5、reserved. Published 7 September 2007. Printed in the United States of America. IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual standard for educational classroom use can also be obtained through the Copyright Clearance Center. iv
6、Copyright 2007 IEEE. All rights reserved. Introduction This document amends requirements in IEEE Std 269-2002. The IEEE will maintain this standard current with the state of the technology. Notice to users Errata Errata, if any, for this and all other standards can be accessed at the following URL:
7、http:/ standards.ieee.org/reading/ieee/updates/errata/index.html. Users are encouraged to check this URL for errata periodically. Interpretations Current interpretations can be accessed at the following URL: http:/standards.ieee.org/reading/ieee/interp/ index.html. Patents Attention is called to the
8、 possibility that implementation of this standard may require use of subject matter covered by patent rights. By publication of this standard, no position is taken with respect to the existence or validity of any patent rights in connection therewith. The IEEE shall not be responsible for identifyin
9、g patents or patent applications for which a license may be required to implement an IEEE standard or for conducting inquiries into the legal validity or scope of those patents that are brought to its attention. This introduction is not part of IEEE Std 269a-2007, IEEE Standard for Methods for Measu
10、ring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and HeadsetsAmendment 1. v Copyright 2007 IEEE. All rights reserved. Participants At the time this standard was completed, the Subcommittee on Telephone Instrument testing had the following membership: John Bareham, Chair
11、Glenn Hess, Vice Chair Steve Graham, Secretary Al Baum Roger Britt Cliff Chamney Miguel De Araujo Fred Dekalb Roger Gutzwiller Frederick M. Kruger Ken MacDonald Joachim Pomy Jeffrey Schenck Christopher J. Struck Steve Temme Stephen Whitesell Allen Woo Robert Young The following members of the indivi
12、dual balloting committee voted on this standard. Balloters may have voted for approval, disapproval, or abstention. John R. Bareham Al Baum James T. Carlo Keith Chow Tommy P. Cooper Miguel De Araujo Carlo Donati Steve Graham Randall C. Groves Glenn R. Hess Werner Hoelzl Frederick M. Kruger Ken MacDo
13、nald Gary L. Michel William J. Mitchell Michael S. Newman Joachim Pomy Percy E. Pool Robert A. Robinson Bartien Sayogo When the IEEE-SA Standards Board approved this standard on 6 March 2007, it had the following membership: Steve M. Mills, Chair Robert M. Grow, Vice Chair Don Wright, Past Chair Jud
14、ith Gorman, Secretary Richard DeBlasio Alex Gelman William R. Goldbach Arnold M. Greenspan Joanna N. Guenin Julian Forster* Kenneth S. Hanus William B. Hopf Richard H. Hulett Hermann Koch Joseph L. Koepfinger* John Kulick David J. Law Glenn Parsons Ronald C. Petersen Tom A. Prevost Narayanan Ramacha
15、ndran Greg Ratta Robby Robson Anne-Marie Sahazizian Virginia C. Sulzberger Malcolm V. Thaden Richard L. Townsend Howard L. Wolfman *Member Emeritus Also included are the following nonvoting IEEE-SA Standards Board liaisons: Satish K. Aggarwal, NRC Representative Alan H. Cookson, NIST Representative
16、Michelle D. Turner IEEE Standards Program Manager, Document Development Matthew J. Ceglia IEEE Standards Program Manager, Technical Program Development -,-,- vi Copyright 2007 IEEE. All rights reserved. Contents 3. Definitions 1 4. Abbreviations, acronyms, and symbols 2 4.1 Abbreviations and acronym
17、s . 2 5. Test equipment and setup. 2 5.1 Ear simulators 2 5.3 Test fixtures. 3 7. Test procedure for analog sets 13 7.1 General 13 7.3 Analog telephone network impairments 14 7.4 Receive 14 7.5 Send. 15 7.6 Sidetone. 16 7.10 Maximum acoustic output . 17 8. Test procedures for digital and four-wire s
18、ystems 17 8.1 General 17 8.2 Digital test circuits. 18 8.3 Digital telephone network impairments. 18 8.4 Receive 19 8.5 Send. 20 8.6 Sidetone. 21 8.13 Maximum acoustic output . 21 9. Test procedures for analog four-wire handsets and headsets 21 9.3 Receive 21 9.4 Send. 22 9.6 Maximum acoustic output
19、 . 23 Annex A (informative) Ear simulators with flexible pinnas and positioning devices 24 Annex B (normative) Alternative ear simulators, mouth simulator, and test fixture 26 Annex C (normative) DRP to ERP and related translations. 28 Annex F (normative informative) Test signals. 31 Annex G (normat
20、ive) Analysis methods 32 -,-,- vii Copyright 2007 IEEE. All rights reserved. Annex J (normative) Distortion 34 Annex T (informative) Useful conversion procedures. 41 -,-,- 1 Copyright 2007 IEEE. All rights reserved. IEEE Standard for Methods for Measuring Transmission Performance of Analog and Digit
21、al Telephone Sets, Handsets, and Headsets Amendment 1 NOTEThe editing instructions contained in this amendment define how to merge the material contained therein into the existing base standard to form the comprehensive standard. The editing instructions are shown in bold italic. Four editing instru
22、ctions are used: change, delete, insert, and replace. Change is used to make corrections in existing text or tables. The editing instruction specifies the location of the change and describes what is being changed by using strikethrough (to remove old material) and underscore (to add new material).
23、Delete removes existing material. Insert adds new material without disturbing the existing material. Insertions may require renumbering. If so, renumbering instructions are given in the editing instruction. Replace is used to make changes in figures or equations by removing the existing figure or eq
24、uation and replacing it with a new one. Editorial notes will not be carried over into future editions because the changes will be incorporated into the base standard. 3. Definitions Change the following item: 3.38 reference receive volume control setting: The setting of one or more receive volume co
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