1、 ETSI TS 126 074 V15.0.0 (2018-07) Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Mandatory speech codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec test sequences (3GPP TS 26.074 version 15.0.0 Release 15)
2、 TECHNICAL SPECIFICATION ETSI ETSI TS 126 074 V15.0.0 (2018-07)13GPP TS 26.074 version 15.0.0 Release 15Reference RTS/TSGS-0426074vf00 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 -
3、NAF 742 C Association but 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 electro
4、nic and/or print versions 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)
5、version kept on a specific 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/ETSIDeliverab
6、leStatus.aspx If you find 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 p
7、hotocopying and microfilm 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. ETSI 2018. All rights reserved. DECTTM, PLUGT
8、ESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks 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. GSMand the GSM logo are
9、 trademarks registered and owned by the GSM Association. ETSI ETSI TS 126 074 V15.0.0 (2018-07)23GPP TS 26.074 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information per
10、taining 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 Secre
11、tariat. 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 o
12、n the ETSI Web server) which are, or may be, or may become, essential to the present document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being
13、the property of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification
14、 (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The
15、 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 “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as de
16、scribed 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 ETSI TS 126 074 V15.0.0 (2018-07)33GPP TS 26.074 version 15.0.0 Release 15Contents Intellectual Prope
17、rty Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 References 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 5g34 General . 6g35 Test sequence format 6g35.1 File format 6g35.2 Codec homing 6g36 Speech codec test sequences 6g36.1 Codec co
18、nfiguration . 7g36.2 Speech codec test sequences 7g36.2.1 Speech encoder test sequences 7g36.2.2 Speech decoder test sequences 8g36.2.3 Codec homing sequence . 8g37 Test sequences for source controlled rate operation . 8g37.1 Codec configuration . 8g37.2 Test Sequences . 9g37.2.1 Test sequences for
19、background noise estimation 9g37.2.2 Test sequences for pitch, tone and complex signal detection . 9g37.2.3 Real speech and tones . 9g37.2.4 Test sequence for signal-to-noise ratio estimation 9g38 Sequences for finding the 20 ms framing of the adaptive multi-rate speech encoder 10g38.1 Bit synchroni
20、sation . 10g38.2 Frame synchronisation . 10g38.3 Formats and sizes of the synchronisation sequences 11g39 Trau Testing with 8 Bit A- and -law PCM Test Sequences . 11g3Annex A (informative): Change history . 13g3History 14g3ETSI ETSI TS 126 074 V15.0.0 (2018-07)43GPP TS 26.074 version 15.0.0 Release
21、15Foreword This Technical Specification (TS) has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document,
22、 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 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control.
23、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 only changes have been incorporated in the document. ETSI ETSI TS 126 074 V15.0.0 (2018-07)53GPP TS 26.074 version 15.0.0 Release 15
24、1 Scope The present document specifies the digital test sequences for the adaptive multi-rate (AMR) speech codec. These sequences test for a bit exact implementation of the adaptive multi-rate speech transcoder (TS 26.090 2), voice activity detection (TS 26.094 5), comfort noise (TS 26.092 3), and s
25、ource controlled rate operation (TS 26.093 4). 2 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 n
26、on-specific. - For a specific reference, subsequent 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 s
27、ame Release as the present document. 1 3GPP TS 26.071: “AMR Speech Codec; General Description“. 2 3GPP TS 26.090: “AMR Speech Codec; Speech Transcoding Functions“. 3 3GPP TS 26.092: “AMR Speech Codec; Comfort Noise Aspects“. 4 3GPP TS 26.093: “AMR Speech Codec; Source Controlled Rate Operation“. 5 3
28、GPP TS 26.094: “AMR Speech Codec; Voice Activity Detector“. 6 3GPP TS 26.091: “AMR Speech Codec; Error Concealment of Lost Frames“. 7 3GPP TS 26.073: “AMR Speech Codec; ANSI C-code“. 8 3GPP TS 46.054: “Test sequences for the GSM Enhanced Full Rate (EFR) speech codec“. 3 Definitions and abbreviations
29、 3.1 Definitions For the purposes of the present document, the terms and definitions given in TS 26.090 2, TS 26.091 6, TS 26.092 3, TS 26.093 4 and TS 26.094 5 apply. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: T.B.A ETSI ETSI TS 126 074 V15.0.0 (2
30、018-07)63GPP TS 26.074 version 15.0.0 Release 154 General Digital test sequences are necessary to test for a bit exact implementation of the adaptive multi-rate speech transcoder (TS 26.090 2), voice activity detection (TS 26.094 5), comfort noise generation (TS 26.092 3), and source controlled rate
31、 operation (TS 26.093 4). The test sequences may also be used to verify installations of the ANSI C code in TS 26.073 7. Clause 5 describes the format of the files which contain the digital test sequences. Clause 6 describes the test sequences for the speech transcoder. Clause 7 describes the test s
32、equences for the VAD, comfort noise and source controlled rate operation. Clause 8 describes the method by which synchronisation is obtained between the test sequences and the speech codec under test. Clause 9 describes the alternative acceptance testing of the speech encoder and decoder in the TRAU
33、 by means of 8 bit A- or -law compressed test sequences on the A-Interface. 5 Test sequence format This clause provides information on the format of the digital test sequences for the GSM adaptive multi-rate speech transcoder (TS 26.090 2), voice activity detection (TS 26.094 5), comfort noise gener
34、ation (TS 26.092 3), and source controlled rate operation (TS 26.093 4). 5.1 File format The test sequence files in PC (little-endian) byte order are provided in archive files (ZIP format) which accompany the present document. Following decompression, three types of file are provided: - Files for in
35、put to the speech encoder: *.INP - Files for comparison with the encoder output and for input to the speech decoder: *.COD - Files for comparison with the decoder output: *.OUT - One mode control file for the mode switching test T21.MOD All file formats are described in TS 26.073 7. 5.2 Codec homing
36、 Each *.INP file includes two homing frames (see TS 26.073 7) at the start of the test sequence. The function of these frames is to reset the speech encoder state variables to their initial value. In the case of a correct installation of the ANSI-C simulation (TS 26.073 7), all speech encoder output
37、 frames shall be identical to the corresponding frame in the *.COD file. In the case of a correct hardware implementation undergoing testing, the first speech encoder output frame is undefined and need not be identical to the first frame in the *.COD file, but all remaining speech encoder output fra
38、mes shall be identical to the corresponding frames in the *.COD file. The function of the two homing frames in the *.COD files is to reset the speech decoder state variables to their initial value. In the case of a correct installation of the ANSI-C simulation (TS 26.073 7), all speech decoder outpu
39、t frames shall be identical to the corresponding frame in the *.OUT file. In the case of a correct hardware implementation undergoing testing, the first speech decoder output frame is undefined and need not be identical to first frame in the *.OUT file, but all remaining speech decoder output frames
40、 shall be identical to the corresponding frames in the *.OUT file. 6 Speech codec test sequences This clause describes the test sequences designed to exercise the adaptive multi-rate speech transcoder (TS 26.090 2). ETSI ETSI TS 126 074 V15.0.0 (2018-07)73GPP TS 26.074 version 15.0.0 Release 156.1 C
41、odec configuration The speech encoder shall be configured not to operate in the source controlled rate mode. 6.2 Speech codec test sequences 6.2.1 Speech encoder test sequences Twenty-two encoder input sequences are provided. Note that for the input sequences T00.INP to T03.INP, the amplitude figure
42、s are given in 13-bit precision. The active speech levels are given in dBov. - T00.INP - Synthetic harmonic signal. The pitch delay varies slowly from 18 to 143.5 samples. The minimum and maximum amplitudes are -997 and +971. - T01.INP - Synthetic harmonic signal. The pitch delay varies slowly from
43、144 down to 18.5 samples. Amplitudes at saturation point -4096 and +4095. - T02.INP - Sinusoidal sweep varying from 150 Hz to 3400 Hz. Amplitudes 1250. - T03.INP - Sinusoidal sweep varying from 150 Hz to 3400 Hz. Amplitudes 4000. - T04.INP - Female speech, active speech level: -19.4 dBov, flat frequ
44、ency response. - T05.INP - Male speech, active speech level: -18.7 dBov, flat frequency response. - T06.INP - Female speech, ambient noise, active speech level: -35.0 dBov, flat frequency response. - T07.INP - Female speech, ambient noise, active speech level: -25.0 dBov, flat frequency response. -
45、T08.INP - Female speech, ambient noise, active speech level: -15.6 dBov, flat frequency response. - T09.INP - Female speech, car noise, active speech level: -35.5 dBov, flat frequency response. - T10.INP - Female speech, car noise, active speech level: -26.1 dBov, flat frequency response. - T11.INP
46、- Female speech, car noise, active speech level: -15.8 dBov, flat frequency response. - T12.INP - Male speech, ambient noise, active speech level: -34.9 dBov, flat frequency response. - T13.INP - Male speech, ambient noise, active speech level: -24.8 dBov, flat frequency response. - T14.INP - Male s
47、peech, ambient noise, active speech level: -15.0 dBov, flat frequency response. - T15.INP - Male speech, babble noise, active speech level: -34.1 dBov, flat frequency response. - T16.INP - Male speech, babble noise, active speech level: -24.3 dBov, flat frequency response. - T17.INP - Male speech, b
48、abble noise, active speech level: -14.4 dBov, flat frequency response. - T18.INP - Female speech, ambient noise, active speech level: -26.0 dBov, modified IRS frequency response, with many zero frames. - T19.INP - Male speech, ambient noise, active speech level: -36.0 dBov, modified IRS frequency re
49、sponse, with many zero frames. - T20.INP - Sequence for exercising the LPC vector quantisation codebooks and ROM tables of the codec. - T21.INP - Speech sequence for mode switching test. The output using these input sequences will be different depending on the tested adaptive multi-rate mode. In the notation used below should be changed to the number of the tested mode, i.e. one of 122, 102, 795, 74, 67, 59, 515, or 475. The T00.INP and T01.INP sequences were designed to test the pitch lag of the GSM adap
