1、 ETSI TS 146 007 V14.0.0 (2017-04) Digital cellular telecommunications system (Phase 2+) (GSM); Half rate speech; Test sequences for the GSM half rate speech codec (3GPP TS 46.007 version 14.0.0 Release 14) floppy3TECHNICAL SPECIFICATION GLOBAL SYSTEM FOR MOBILE COMMUNICATIONSRETSI ETSI TS 146 007 V
2、14.0.0 (2017-04)13GPP TS 46.007 version 14.0.0 Release 14Reference RTS/TSGS-0446007ve00 Keywords GSM 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 non lucratif enregistre la Sou
3、s-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 of the present document shall
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9、TS 146 007 V14.0.0 (2017-04)23GPP TS 46.007 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 pertaining to these essential IPRs, if any, is publicly available for ETSI members and non
10、-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 Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pur
11、suant 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 the ETSI Web server) which are, or may be, or may become, essential to the present do
12、cument. Foreword This Technical Specification (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 reference
13、s 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 “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “
14、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 ETSI TS 146 007 V14.0.0 (2017-04)33GPP TS 46.007 version
15、 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 6g32 References 6g33 Definitions and abbreviations . 6g33.1 Definitions 6g33.2 Abbreviations . 7g34 General . 7g35 Test sequence format 7g35.1 File format 7g35.2 Codec homing 8g3
16、6 Speech codec test sequences 8g36.1 Codec configuration . 8g36.2 Speech codec test sequences 9g36.2.1 Speech encoder test sequences 9g36.2.2 Speech decoder test sequences 9g36.2.3 Codec homing sequence . 9g37 DTX test sequences 10g37.1 Codec configuration . 10g37.2 DTX test sequences 10g37.2.1 Pred
17、ictor values computation 10g37.2.2 Spectral comparison 11g37.2.3 Threshold adaptation. 11g37.2.4 Periodicity detection . 11g37.2.5 Tone detection 11g37.2.6 Safety and initialization 11g37.2.7 Comfort noise test sequence . 11g37.2.8 Real speech and tones . 11g38 Sequences for finding the 20 ms framin
18、g of the GSM half rate speech encoder . 12g38.1 Bit synchronization. 12g38.2 Frame synchronization . 12g38.3 Formats and sizes of the synchronization sequences 13g39 Trau Testing with 8 Bit A- and -law PCM Test Sequences . 14g310 Test sequences for the GSM half rate speech codec 15g3Annex A (informa
19、tive): Change history . 16g3History 17g3ETSI ETSI TS 146 007 V14.0.0 (2017-04)43GPP TS 46.007 version 14.0.0 Release 14Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). An electronic attachment accompanies the present document, containing test s
20、equences for a bit exact implementation of the half rate speech transcoder. Archive en_300968v080001p0.ZIP which accompanies the present document contains compressed files which are labelled as follows: Disks24.zip Clause 10: Test sequences for the GSM half rate speech codec; Disks 2 and 4 (GSM 06.0
21、7). Disks135.zip Clause 10: Test sequences for the GSM half rate speech codec; Disks 1, 3 and 5 (GSM 06.07). Disks6A.zip Clause 10: Test sequences for the GSM half rate speech codec; Disks 6 and 10 (GSM 06.07). Disks7B.zip Clause 10: Test sequences for the GSM half rate speech codec; Disks 7 and 11
22、(GSM 06.07). Disks89.zip Clause 10: Test sequences for the GSM half rate speech codec; Disks 8 and 9 (GSM 06.07). The present document specifies the half rate speech traffic channels for the Digital cellular telecommunications system. The present document specifies the digital test sequences for the
23、 GSM half rate speech codec for the digital cellular telecommunications system. The present document, is part of a series covering the half rate speech traffic channels as described below: GSM 06.02 “Digital cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech processing
24、 functions“. GSM 06.06 “Digital cellular telecommunications system (Phase 2+); Half rate speech; ANSI-C code for the GSM half rate speech codec“. GSM 06.07 “Digital cellular telecommunications system (Phase 2+); Half rate speech; Test sequences for the GSM half rate speech codec“. GSM 06.20 “Digital
25、 cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech transcoding“. GSM 06.21 “Digital cellular telecommunications system (Phase 2+); Half rate speech; Substitution and muting of lost frames for half rate speech traffic channels“. GSM 06.22 “Digital cellular telecommunic
26、ations system (Phase 2+); Half rate speech; Comfort noise aspects for half rate speech traffic channels“. GSM 06.41 “Digital cellular telecommunications system (Phase 2+); Half rate speech; Discontinuous Transmission (DTX) for half rate speech traffic channels“. GSM 06.42 “Digital cellular telecommu
27、nications system (Phase 2+); Half rate speech; Voice Activity Detector (VAD) for half rate speech traffic channels“. 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 docu
28、ment, 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 cont
29、rol. ETSI ETSI TS 146 007 V14.0.0 (2017-04)53GPP TS 46.007 version 14.0.0 Release 14y 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 docum
30、ent. ETSI ETSI TS 146 007 V14.0.0 (2017-04)63GPP TS 46.007 version 14.0.0 Release 141 Scope The present document specifies the digital test sequences for the GSM half rate speech codec. These sequences test for a bit exact implementation of the half rate speech transcoder (GSM 06.20 2), Voice Activi
31、ty Detector (GSM 06.42 6), comfort noise (GSM 06.22 4) and the discontinuous transmission (GSM 06.41 5). 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
32、 publication, edition number, version number, etc.) or non-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 re
33、fers to the latest version of that document in the same Release as the present document. 1 GSM 01.04: “Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. 2 GSM 06.20: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech transcodi
34、ng“. 3 GSM 06.21: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Substitution and muting of lost frame for half rate speech traffic channels“. 4 GSM 06.22: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Comfort noise aspects for half rate speech
35、traffic channels“. 5 GSM 06.41: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Discontinuous Transmission (DTX) for half rate speech traffic channels“. 6 GSM 06.42: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Voice Activity Detector (VAD) for
36、half rate speech traffic channels“. 7 GSM 06.06: “Digital cellular telecommunications system (Phase 2+); Half rate speech; ANSI-C code for the GSM half rate speech codec“. 8 GSM 06.02: “Digital cellular telecommunications system (Phase 2+); Half rate speech; Half rate speech coding functions“. 3 Def
37、initions and abbreviations 3.1 Definitions Definition of terms used in the present document can be found in GSM 06.20 2, GSM 06.21 3, GSM 06.22 4, GSM 06.41 5 and GSM 06.42 6. ETSI ETSI TS 146 007 V14.0.0 (2017-04)73GPP TS 46.007 version 14.0.0 Release 143.2 Abbreviations For the purposes of the pre
38、sent document, the following abbreviations apply: ETS European Telecommunication Standard GSM Global System for Mobile communications For abbreviations not given in this clause, see GSM 01.04 1. 4 General Digital test sequences are necessary to test for a bit exact implementation of the half rate sp
39、eech transcoder (GSM 06.20 2), Voice Activity Detector (GSM 06.42 6), comfort noise (GSM 06.22 4) and the discontinuous transmission (GSM 06.41 5). The test sequences may also be used to verify installations of the ANSI C code in GSM 06.06 7. Clause 5 describes the format of the files which contain
40、the digital test sequences. Clause 6 describes the test sequences for the speech transcoder. Clause 7 describes the test sequences for the VAD, comfort noise and discontinuous transmission. Clause 8 describes the method by which synchronization is obtained between the test sequences and the speech c
41、odec under test. Clause 9 describes the optional acceptance testing of the speech encoder and decoder in the TRAU by means of 8 bit A- or -law compressed test sequences on the A-Interface. Electronic copies of the digital test sequences are provided as clause 10, these digital test sequences are con
42、tained in archive en_300968v080001p0.ZIP which accompanies the present document. 5 Test sequence format This clause provides information on the format of the digital test sequences for the GSM half rate speech transcoder (GSM 06.20 2), Voice Activity Detector (GSM 06.42 6), comfort noise (GSM 06.22
43、4) and the discontinuous transmission (GSM 06.41 5). 5.1 File format The test sequence files are provided in archive en_300968v080001p0.ZIP which accompanies the present document. Following decompression, by execution of the 11 “disk*.exe“ files, four types of file are provided: - Files for input to
44、 the GSM half rate speech encoder: *.INP - Files for comparison with the encoder output: *.COD - Files for input to the GSM half rate speech decoder: *.DEC - Files for comparison with the decoder output: *.OUT Tables 1, 2, 3 and 4 define the formats of the four types of file. Each parameter in these
45、 tables is contained in a 16 bit word except for the samples of the 8 bit PCM test sequences, which are contained in an 8 bit word each. The left or right justification is indicated in the tables. The size and location of speech parameters in the encoder output (*.COD) and decoder input files (*.DEC
46、) are described in GSM 06.20 2. ETSI ETSI TS 146 007 V14.0.0 (2017-04)83GPP TS 46.007 version 14.0.0 Release 145.2 Codec homing Each *.INP file includes two homing frames at the start of the test sequence. The function of these frames is to reset the speech encoder state variables to their initial v
47、alue. In the case of a correct installation of the ANSI-C simulation (GSM 06.06 7), all speech encoder output frames shall be identical to the corresponding frame in the *.COD file. In the case of a correct hardware implementation undergoing type approval, the first speech encoder output frame is un
48、defined and need not be identical to the first frame in the *.COD file, but all remaining speech encoder output frames shall be identical to the corresponding frames in the *.COD file. Each *.DEC file includes two homing frames at the start of the test sequence. The function of these frames is to re
49、set the speech decoder state variables to their initial value. In the case of a correct installation of the ANSI-C simulation (GSM 06.06 7), all speech decoder output frames shall be identical to the corresponding frame in the *.OUT file. In the case of a correct hardware implementation undergoing type approval, 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 shall be identical to the corresponding fr
