1、 ETSI TR 126 976 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Performance characterization of the Adaptive Multi-Rate Wideband (AMR-WB) speech codec (3GPP TR 26.976 version 14.0.0 Release 14) TECHNICAL REPORT E
2、TSI ETSI TR 126 976 V14.0.0 (2017-04)13GPP TR 26.976 version 14.0.0 Release 14Reference RTR/TSGS-0426976ve00 Keywords GSM,LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but
3、non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print versions
4、of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the Portable Document Format (PDF) version kept on a specific
5、 network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at https:/portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find
6、errors in the present document, please send your comment to one of the following services: https:/portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm
7、except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All rights reserv
8、ed. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members GSM an
9、d the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 126 976 V14.0.0 (2017-04)23GPP TR 26.976 version 14.0.0 Release 14Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pert
10、aining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secret
11、ariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on
12、 the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UM
13、TS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “should
14、“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI
15、 ETSI TR 126 976 V14.0.0 (2017-04)33GPP TR 26.976 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 6g31 Scope 7g32 References 7g33 Abbreviations . 9g34 General . 10g34.1 Project history 10g34.2 Overview of the wideband codec work i
16、tem 11g34.3 Presentation of the following clauses . 11g35 Performance requirements 12g36 Introduction to the testing of AMR-WB speech codec 12g36.1 AMR-WB Characterisation Phase 12g36.1.1 Characterisation testing in ITU . 14g36.1.2 Characterisation testing in TSG-GERAN . 14g36.2 AMR-WB Verification
17、Phase. 14g36.3 AMR-WB floating-point verification phase . 15g37 Important notes about the interpretation of test results 15g38 Performance in self-tandeming and with variation of the input speech level. 16g39 Interoperability Performance in Real World Wideband Scenarios 17g310 Interoperability Perfo
18、rmance in Real World Narrowband Scenarios . 19g311 Performance of VAD/DTX/CNG Algorithm . 20g312 Performance in Static Errors under Clean Speech Conditions in GSM GMSK . 21g313 Performance in Background Noise in Static C/I Conditions in GSM GMSK 23g314 Performance in Static Errors under Clean Speech
19、 Conditions in 3G . 24g315 Performance in Background Noise in Static C/I Conditions in 3G 26g316 Performance in Static Errors under Clean Speech Conditions in GERAN 8-PSK FR and HR channels 28g317 Effects of Bit Rate, Input Level, and VAD/DTX (DCR) . 30g318 Effects of Bit Rate, Tandeming, and Backgr
20、ound Noise (DCR) 36g319 Effects of Wideband Coding and Test Method on Music Quality (ACR, DCR) . 40g320 Performances with DTMF Tones . 43g321 Performance with Special Input Signals. 44g321.1 Arbitrary signal 44g321.2 Bursty random noise signals . 45g321.3 Background noise signals . 45g321.4 Sinusoid
21、al signals . 48g321.5 Square wave signals . 48g321.6 All zero signal 49g321.7 Long speech signal (radio play) . 49g321.8 Sinusoidal signals with bad frames 49g321.9 Summary 49g3ETSI ETSI TR 126 976 V14.0.0 (2017-04)43GPP TR 26.976 version 14.0.0 Release 1422 Overload Performance 50g323 Muting Behavi
22、our 50g324 Language Dependency . 51g325 Transmission Delay 52g326 Frequency Response . 53g327 Signalling Tones . 55g328 Complexity Analysis 57g329 Comfort Noise Generation . 59g329.1 VAD . 59g329.2 Voice/Channel activity . 60g329.3 Clipping 62g329.4 Comfort Noise Synthesis 63g329.5 Summary 64g330 Pe
23、rformance with music signals (informal expert listening) 65g331 Switching Performance between AMR and AMR-WB modes 66g3Annex A: Detailed information about the AMR-WB selection phase . 67g3A.1 Performance requirements 67g3A.1.1 GSM FR channel (applications A and B) . 67g3A.1.2 Higher rate channels (a
24、pplications C and E) 68g3A.1.3 Other requirements and objectives . 69g3A.1.4 Testing of performance requirements in the selection tests 69g3A.2 Selection procedure and methodology for comparison of candidates 69g3A.2.1 Design constraints (Rule 1) 70g3A.2.2 Speech quality 70g3A.2.2.1 Failures in meet
25、ing performance requirements (Rule 2) . 70g3A.2.2.2 Direct comparison of candidates (Rule 3) . 71g3A.3 Selection phase listening tests 71g3A.3.1 Overview of the test plan 72g3A.3.2 Schedule of the selection tests and related activities 73g3A.4 Results of the selection tests . 74g3A.4.1 Comparison ag
26、ainst performance requirements . 74g3A.4.2 Direct comparison of candidates 75g3A.4.3 Conclusions on the AMR-WB codec candidates 75g3A.5 Highlights of the best candidate codec (Codec 3) based on the selection tests 76g3A.6 Key Selection Phase Documents in 3GPP FTP-site . 76g3A.7 Extracts from the AMR
27、-WB Selection Test Results 77g3A.8 Global Analysis Spreadsheet 80g3A.9 Complexity of the AMR-WB Candidate Codecs . 80g3Annex B: AMR-WB Floating-Point Verification 82g3B.1 Subjective test results . 82g3B.2 Non-speech signals . 83g3B.3 Bit-Exactness, Idle-Channel Behaviour and Long-Term Stability Perf
28、ormance . 84g3B.4 Music Performance (Expert Listening Tests) . 85g3B.5 Overload Performance 85g3B.6 Transparency of Codec for DTMF signals . 86g3ETSI ETSI TR 126 976 V14.0.0 (2017-04)53GPP TR 26.976 version 14.0.0 Release 14B.7 Perceptual Evaluation of Speech Quality (PESQ) 90g3B.8 Operation of the
29、VAD and comfort noise 98g3Annex C: Change history 105g3History 106g3ETSI ETSI TR 126 976 V14.0.0 (2017-04)63GPP TR 26.976 version 14.0.0 Release 14Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to con
30、tinuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 p
31、resented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial
32、 only changes have been incorporated in the document. ETSI ETSI TR 126 976 V14.0.0 (2017-04)73GPP TR 26.976 version 14.0.0 Release 141 Scope The present document provides information of the AMR Wideband (AMR-WB) Characterisation, Verification and Selection Phases. Experimental test results from the
33、speech quality related testing are reported to illustrate the behaviour of the AMR-WB codec. Additional information is provided, e.g., on implementation complexity of the AMR-WB codec. Also the verification results for the floating-point version of the AMR-WB codec (3GPP TS 26.204) are presented. 2
34、References The following documents contain provisions, which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. For a specific reference, subsequent
35、revisions do not apply. For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 26.901:
36、 “AMR wideband speech codec; Feasibility study report (Release 4)“. 2 Tdoc SP-99060: “Proposed TSG-S4 Work Items for approval“, 3GPP TSG-SA meeting #2, 2-4 March, 1999 (Fort Lauderdale, USA). 3 Tdoc SP-99354: “Common WI description for the Wideband Codec“, 3GPP TSG-SA meeting #5, 11-13 October, 1999
37、 (Kjongju, South Korea). 4 Tdoc SP-000259: “AMR Wideband Speech Codec Qualification Phase Report“, 3GPP TSG-SA#8, 26-28 June, 2000 (Dusseldorf, Germany) 5 Tdoc SP-000555: “Results of AMR Wideband (AMR-WB) Codec Selection Phase“, 3GPP TSG-SA, Bangkok, Thailand, December 2000. 6 Tdoc S4-000321: “Perma
38、nent Project Document: AMR Wideband Performance Requirements (WB-3, version 2.2)“, 3GPP TSG-S4. 7 Tdoc S4-000508: “Permanent Project Document: Selection Rules for AMR-WB (WB-5b, version 1.1)“, 3GPP TSG-S4. 8 Tdoc S4-000340: “Permanent Project Document: Design Constraints (WB-4, version 1.3)“, 3GPP T
39、SG-S4. 9 Tdoc S4-000427: “Permanent Project Document: AMR Wideband Codec Development Project Deliverables for the Selection Test (WB-6b, version 2.0)“, 3GPP TSG-S4. 10 Tdoc S4-000382: “Permanent Project Document: AMR-WB Selection Test Plan (WB-8b, version 1.0)“, 3GPP TSG-S4. 11 Tdoc S4-000389: “Perm
40、anent Project Document: Processing Functions for WB-AMR Subjective Experiments (WB-7, v.1.0)“, 3GPP TSG-S4. 12 3GPP TR 21.905: “Vocabulary for 3GPP Specifications“. 13 Tdoc S4-010463: “Test Plan for the AMR Wideband Characterisation Phase 1 v.1.2“, 3GPP TSG-S4. 14 Tdoc S4-010008: “Complexity verific
41、ation report of the AMR-WB codec“, 3GPP TSG-S4. 15 Tdoc S4-010393: “Results of cross-language comparisons for Experiments 1, 2 and 5 of the AMR-WB Characterisation Phase 1A“, 3GPP TSG-S4. ETSI ETSI TR 126 976 V14.0.0 (2017-04)83GPP TR 26.976 version 14.0.0 Release 1416 Tdoc S4-010021: “DTMF transpar
42、ency of the AMR-WB speech codec“, 3GPP TSG-S4. 17 Tdoc S4-010050: “AMR WB Verification: Switching Performance Between AMR WB and AMR“, 3GPP TSG-S4. 18 Tdoc S4-010052: “Verification of the delays for the Wideband AMR codec“, 3GPP TSG-S4. 19 Tdoc S4-010158: “WB-AMR Verification results: Performance wi
43、th music signals (expert Listening tests)“, 3GPP TSG-S4. 20 Tdoc S4-010228: “AMR-WB Verification: Special input signals“, 3GPP TSG-S4. 21 Tdoc S4-010230: “AMR-WB verification: Testing of Comfort Noise Generation System“, 3GPP TSG-S4. 22 Tdoc S4-010379: “AMR-WB verification : frequency response“, 3GP
44、P TSG-S4. 23 Tdoc S4-010608: “AMR-WB verification: Signaling Tones“, 3GPP TSG-S4. 24 Tdoc S4-010040: “AMR Wideband Verification Phase - Muting Behaviour“, 3GPP TSG-S4. 25 Tdoc S4-010330: “AMR WB Verification: Overload Performance“, 3GPP TSG-S4. 26 Tdoc S4-020049r1: “Verification of floating-point im
45、plementation of AMR-WB using Wideband-PESQ“, 3GPP TSG-S4. 27 Tdoc S4-020124: “Addendum to Verification of floating-point implementation of AMR-WB using Wideband-PESQ“, 3GPP TSG-S4. 28 Tdoc S4-020270: “AMR-WB Floating-Point Verification: VAD and Comfort Noise Performance“, 3GPP TSG-S4. 29 Tdoc S4-020
46、113: “AMR WB Floating-point C-Code Verification: Overload Performance“, 3GPP TSG-S4. 30 Tdoc S4-020080: “AMR-WB Floating-Point Verification: Music Performance (Expert Listening Tests)“, 3GPP TSG-S4. 31 Tdoc S4-020079: “AMR-WB Floating-Point Verification: Bit-Exactness, Idle-Channel Behavior and Long
47、-Term Stability Performance“, 3GPP TSG-S4. 32 Tdoc S4-020114: “Transparency of AMR-WB (Floating-Point) Codec for DTMF signals“, 3GPP TSG-S4. 33 Tdoc S4-020077: “Verification of AMR-WB floating point“, 3GPP TSG-S4. 34 Tdoc S4-020062: “Verification results of the AMR-WB floating-point codec“, 3GPP TSG
48、-S4. 35 Tdoc S4-020064: “Subjective test results of the AMR-WB floating-point codec“, 3GPP TSG-S4. 36 Tdoc S4-010230: “AMR-WB verification: Testing of Comfort Noise Generation System“, 3GPP TSG-S4. 37 TSG S4#12(00): “Processing Functions for WB-AMR Subjective Experiments“, Annex A, 3GPP TSG-S4#12(00
49、). 38 Tdoc 304/98: “On the Performance of proposed AMR VAD“, ETSI SMG11. 39 Q.7/16: “Subjective Characterization Test Plan for the ITU-T Wideband (7 kHz) Speech Coding Algorithm around 16 kbit/s“; Version 0.7, March 29, 2002. 40 Q.7/12: “Report of the Global Analysis Laboratory for the ITU-T Q.7/16 Wideband Characterization Test“, Geneva, 27 31 May 2002. 41 Tdoc GP-020152: “Channel coding for O-TCH/WFS and O-TCH/WHS: High Level Description“, 3GPP TSG-GERAN. ETSI ETSI TR 126 976 V14.0.0 (
