ASA S1 11 PART 1-2014 American National Standard Electroacoustics C Octave-band and Fractional-octave-band Filters C Part 1 Specifications (a nationally adopted international stand.pdf
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1、 ANSI/ASA S1.11-2014/Part 1 / IEC 61260-1:2014 AMERICAN NATIONAL STANDARD Electroacoustics Octave-band and Fractional-octave-band Filters Part 1: Specifications (a nationally adopted international standard) Accredited Standards Committee S1, Acoustics Standards Secretariat Acoustical Society of Amer
2、ica 1305 Walt Whitman Road, Suite 300 Melville, NY 11747 ANSI/ASA S1.11-2014/Part 1 /IEC61260-1:2014 The American National Standards Institute, Inc. (ANSI) is the national coordinator of voluntary standards development and the clearinghouse in the U.S.A. for information on national and international
3、 standards. The Acoustical Society of America (ASA) is an organization of scientists and engineers formed in 1929 to increase and diffuse the knowledge of acoustics and to promote its practical applications. ANSI/ASA S1.11-2014/Part 1 / IEC 61260-1:2014 (Revision of ANSI/ASA S1.11-2004 R2009) AMERIC
4、AN NATIONAL STANDARD Electroacoustics Octave-band and Fractional-octave-band Filters Part 1: Specifications (a nationally adopted international standard) Secretariat: Acoustical Society of America Approved on July 2, 2014 by: American National Standards Institute, Inc. Abstract This standard provide
5、s performance requirements for analog, sampled-data, and digital implementations of band-pass filters that comprise a filter set or spectrum analyzer for acoustical measurements. It supersedes ANSI/ASA S1.11-2004 (R2009) American National Standard Specification for Octave-Band and Fractional-Octave-
6、Band Analog and Digital Filters, and is an identical national adoption of IEC 61260:2014 Electroacoustics Octave-band and fractional-octave-band filters, Part 1: Specifications. Significant changes from previous versions is that IEC 61260 has been adopted in full: (1) the original test methods of IE
7、C 61260 clause 5 that was moved to an informative annex was replaced as normative, (2) the term “band number,” was replaced, and (3) some references were removed. AMERICAN NATIONAL STANDARDS ON ACOUSTICS The Acoustical Society of America (ASA) provides the Secretariat for Accredited Standards Commit
8、tees S1 on Acoustics, S2 on Mechanical Vibration and Shock, S3 on Bioacoustics, S3/SC 1 on Animal Bioacoustics, and S12 on Noise. These committees have wide representation from the technical community (manufacturers, consumers, trade associations, organizations with a general interest, and governmen
9、t representatives). The standards are published by the Acoustical Society of America as American National Standards after approval by their respective Standards Committees and the American National Standards Institute (ANSI). These standards are developed and published as a public service to provide
10、 standards useful to the public, industry, and consumers, and to Federal, State, and local governments. Each of the Accredited Standards Committees (operating in accordance with procedures approved by ANSI) is responsible for developing, voting upon, and maintaining or revising its own Standards. Th
11、e ASA Standards Secretariat administers Committee organization and activity and provides liaison between the Accredited Standards Committees and ANSI. After the Standards have been produced and adopted by the Accredited Standards Committees, and approved as American National Standards by ANSI, the A
12、SA Standards Secretariat arranges for their publication and distribution. An American National Standard implies a consensus of those substantially concerned with its scope and provisions. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has
13、been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered and that a concerted effort be made towards their resolution. The use of an American
14、 National Standard is completely voluntary. Their existence does not in any respect preclude anyone, whether he or she has approved the Standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the Standards. NOTICE: This American Nati
15、onal Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken periodically to reaffirm, revise, or withdraw this Standard. Acoustical Society of America ASA Secretariat 1305 Walt Whitman Road, Suite 300 Melville, New Y
16、ork 11747 Telephone: 1 (631) 390-0215 Fax: 1 (631) 923-2875 E-mail: asastdsacousticalsociety.org 2014 by Acoustical Society of America. This standard may not be reproduced in whole or in part in any form for sale, promotion, or any commercial purpose, or any purpose not falling within the provisions
17、 of the U.S. Copyright Act of 1976, without prior written permission of the publisher. For permission, address a request to the Standards Secretariat of the Acoustical Society of America. These materials are subject to copyright claims of IEC and ASA. No part of this publication may be reproduced in
18、 any form, including an electronic retrieval system, without the prior written permission of the Acoustical Society of America (ASA). All requests pertaining to this standard should be submitted to ASA. 2014 Acoustical Society of America All rights reserved i Contents 1 Scope 1 2 Normative reference
19、s .1 3 Terms and definitions .2 4 Reference environmental conditions 6 5 Performance requirements .6 5.1 General . 6 5.2 Octave frequency ratio . 7 5.3 Reference frequency 7 5.4 Exact mid-band frequencies . 7 5.5 Nominal mid-band frequencies 8 5.6 Band-edge frequencies 8 5.7 Time-averaged signal lev
20、els 8 5.8 Filter attenuation. 9 5.9 Reference attenuation 9 5.10 Relative attenuation . 9 5.11 Normalized effective bandwidth . 11 5.12 Effective bandwidth deviation . 13 5.13 Linear operating range . 13 5.14 Time-invariant operation 14 5.15 Anti-alias filters . 15 5.16 Summation of output signals 1
21、5 5.17 Overload indicator 15 5.18 Filter decay time . 16 5.19 Maximum input signal 16 5.20 Output terminals and terminating impedances 16 5.21 Power supply check . 16 5.22 Sensitivity to various environments 17 5.23 Electrostatic-discharge and electromagnetic-compatibility requirements 17 6 Instrume
22、nt marking 20 7 Instruction manual . 20 7.1 General . 20 7.2 Operation 21 7.3 Testing 22 (informative) Relationship between tolerance interval, corresponding acceptance interval Annex Aand the maximum-permitted uncertainty of measurement 23 (normative) Maximum-permitted expanded uncertainties of mea
23、surement . 24 Annex B(informative) Examples of conformance assessment to specifications of this standard . 25 Annex CC.1 General . 25 C.2 Conformance criteria 25 C.3 Example test results . 26 ii 2014 Acoustical Society of America All rights reserved (informative) Base 2 filters 28 Annex D(normative)
24、 Nominal mid-band frequencies 29 Annex EE.1 Mid-band frequencies for octave-band and one-third-octave-band filters . 29 E.2 Mid-band frequencies for one-half-octave-band filters 29 E.3 Mid-band frequencies for other bandwidths 29 (informative) Normalized frequencies at breakpoints of acceptance limi
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