ITU-T G 722 2 ANNEX D-2003 Wideband coding of speech at around 16 kbit s using Adaptive Multi-Rate Wideband (AMR-WB) Annex D Digital test sequences SERIES G TRANSMISSION SYSTEMS ANt.pdf
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1、 INTERNATIONAL TELECOMMUNICATION UNION ITU-T G.722.2TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Annex D(07/2003) SERIES G: TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS Digital terminal equipments Coding of analogue signals by methods other than PCM Wideband coding of speech at ar
2、ound 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Annex D: Digital test sequences ITU-T Recommendation G.722.2 Annex D ITU-T G-SERIES RECOMMENDATIONS TRANSMISSION SYSTEMS AND MEDIA, DIGITAL SYSTEMS AND NETWORKS INTERNATIONAL TELEPHONE CONNECTIONS AND CIRCUITS G.100G.199 GENERAL CHARACTERIST
3、ICS COMMON TO ALL ANALOGUE CARRIER-TRANSMISSION SYSTEMS G.200G.299 INDIVIDUAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON METALLIC LINES G.300G.399 GENERAL CHARACTERISTICS OF INTERNATIONAL CARRIER TELEPHONE SYSTEMS ON RADIO-RELAY OR SATELLITE LINKS AND INTERCONNECTION WITH METALLIC
4、 LINES G.400G.449 COORDINATION OF RADIOTELEPHONY AND LINE TELEPHONY G.450G.499 TESTING EQUIPMENTS G.500G.599 TRANSMISSION MEDIA CHARACTERISTICS G.600G.699 DIGITAL TERMINAL EQUIPMENTS G.700G.799 General G.700G.709 Coding of analogue signals by pulse code modulation G.710G.719 Coding of analogue signa
5、ls by methods other than PCM G.720G.729 Principal characteristics of primary multiplex equipment G.730G.739 Principal characteristics of second order multiplex equipment G.740G.749 Principal characteristics of higher order multiplex equipment G.750G.759 Principal characteristics of transcoder and di
6、gital multiplication equipment G.760G.769 Operations, administration and maintenance features of transmission equipment G.770G.779 Principal characteristics of multiplexing equipment for the synchronous digital hierarchy G.780G.789 Other terminal equipment G.790G.799 DIGITAL NETWORKS G.800G.899 DIGI
7、TAL SECTIONS AND DIGITAL LINE SYSTEM G.900G.999 QUALITY OF SERVICE AND PERFORMANCE - GENERIC AND USER-RELATED ASPECTS G.1000G.1999 TRANSMISSION MEDIA CHARACTERISTICS G.6000G.6999 DIGITAL TERMINAL EQUIPMENTS G.7000G.7999 DIGITAL NETWORKS G.8000G.8999 For further details, please refer to the list of I
8、TU-T Recommendations. ITU-T Rec. G.722.2/Annex D (07/2003) i ITU-T Recommendation G.722.2 Wideband coding of speech at around 16 kbit/s using Adaptive Multi-rate Wideband (AMR-WB) Annex D Digital test sequences Summary This annex specifies version 5.4.0 of the bit-exact test sequences for the verifi
9、cation of the implementation of G.722.2 AMR-WB codec, voice activity detection, comfort noise generation and source controlled rate operation. The test sequences specified in this annex were also adopted by 3GPP in 3GPP specification TS 26.174. These test sequences are freely available on the ITU-T
10、website. They are also available for a fee on a CD-ROM from the ITU sales department at salesitu.int. Source Annex D to ITU-T Recommendation G.722.2 was approved on 29 July 2003 by ITU-T Study Group 16 (2001-2004) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. G.722.2/Annex D (07/2003)
11、FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and
12、issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these
13、 topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expres
14、sion “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicabilit
15、y) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Reco
16、mmendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability o
17、f claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had/had not received notice of intellectual property, protected by patents, which may be required to implement t
18、his Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. ITU 2004 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior writ
19、ten permission of ITU. ITU-T Rec. G.722.2/Annex D (07/2003) iii CONTENTS Page Annex D Digital test sequences 1 D.1 Scope 1 D.2 General . 1 D.3 Test sequence format 1 D.4 Speech codec test sequences 2 D.5 Test sequences for source controlled rate operation. 4 D.6 Sequences for finding the 20 ms frami
20、ng of the adaptive multi-rate speech encoder 5 Electronic attachment SyncVectors TestVectors DTX_TestVectors ITU-T Rec. G.722.2/Annex D (07/2003) 1 ITU-T Recommendation G.722.2 Wideband coding of speech at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB) Annex D Digital test sequences D.
21、1 Scope This annex specifies the digital test sequences for the adaptive multi-rate wideband (AMR-WB) speech codec specified in ITU-T Rec. G.722.2, its Annexes A and B, and its Appendix I. These sequences test for a bit-exact implementation of the adaptive multi-rate wideband speech transcoder, voic
22、e activity detection, comfort noise, and source controlled rate operation. D.2 General Digital test sequences are necessary to test for a bit exact implementation of the adaptive multi-rate wideband (AMR-WB) speech transcoder, voice activity detection, comfort noise generation, and source controlled
23、 rate operation. The test sequences may also be used to verify installations of the ANSI C code. Clause D.3 describes the format of the files which contain the digital test sequences. Clause D.4 describes the test sequences for the speech transcoder. Clause D.5 describes the test sequences for the V
24、AD, comfort noise and source controlled rate operation. Clause D.6 describes the method by which synchronisation is obtained between the test sequences and the speech codec under test. D.3 Test sequence format This clause provides information on the format of the digital test sequences for the adapt
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