ETSI TS 126 174-2016 Digital cellular telecommunications system (Phase 2+) (GSM) Universal Mobile Telecommunications System (UMTS) LTE Speech codec speech processing functions Adap.pdf

1、 ETSI TS 1Digital cellular telecommUniversal Mobile TelSpeech codec sAdaptive Multispeech (3GPP TS 26.1floppy3TECHNICAL SPECIFICATION126 174 V13.1.0 (2016mmunications system (Phase elecommunications System (LTE; c speech processing functionlti-Rate - Wideband (AMR-WBh codec test sequences .174 versi

2、on 13.1.0 Release 1316-04) e 2+) (GSM); (UMTS); ons; B) 13) ETSI ETSI TS 126 174 V13.1.0 (2016-04)1(3GPP TS 26.174 version 13.1.0 Release 13) Reference RTS/TSGS-0426174vd10 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

3、 65 47 16 Siret N 348 623 562 00017 - 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/o

4、r in print. The content of any electronic 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

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7、c or mechanical, including photocopying 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. European Telecomm

8、unications Standards Institute 2016. All rights reserved. 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. GSM and

9、the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 126 174 V13.1.0 (2016-04)2(3GPP TS 26.174 version 13.1.0 Release 13) Intellectual Property Rights IPRs essential or potentially essential to the present document 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. 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 identi

13、ties, UMTS 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

14、 “shall“, “shall not“, “should“, “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

15、 used in direct citation. ETSI ETSI TS 126 174 V13.1.0 (2016-04)3(3GPP TS 26.174 version 13.1.0 Release 13) Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g32 Normative references . 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33

16、.2 Abbreviations . 5g34 General . 6g35 Test sequence format 6g35.1 File format 6g35.2 Codec homing 6g36 Speech codec test sequences 6g36.1 Codec configuration . 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 sequ

17、ence . 8g37 Test sequences for source controlled rate operation . 8g37.1 Codec configuration . 8g37.2 Test Sequences . 9g37.2.1 Test sequences for background noise estimation 9g37.2.2 Test sequences for tone signal detection . 9g37.2.3 Real speech and tones . 9g37.2.4 Test sequence for signal-to-noi

18、se ratio estimation 9g38 Sequences for finding the 20 ms framing of the adaptive multi-rate speech encoder 9g38.1 Bit synchronisation . 10g38.2 Frame synchronisation . 10g38.3 Formats and sizes of the synchronisation sequences 10g3Annex A (informative): Change history . 12g3History 13g3ETSI ETSI TS

19、126 174 V13.1.0 (2016-04)4(3GPP TS 26.174 version 13.1.0 Release 13) Foreword 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 ap

20、proval. 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 presented to TSG for information; 2 presented to TSG for approval;

21、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 only changes have been incorporated in the document. ETSI ETSI TS

22、 126 174 V13.1.0 (2016-04)5(3GPP TS 26.174 version 13.1.0 Release 13) 1 Scope The present document specifies the digital test sequences for the adaptive multi-rate wideband (AMR-WB) speech codec. These sequences test for a bit-exact implementation of the adaptive multi-rate wideband (AMR-WB) speech

23、transcoder (TS 26.190 2), voice activity detection (TS 26.194 5), comfort noise (TS 26.192 3), and source controlled rate operation (TS 26.193 4). 2 Normative references This TS incorporates by dated and undated reference, provisions from other publications. These normative references are cited at t

24、happropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this TS only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication re

25、ferred to applies. 1 3GPP TS 26.201: “AMR wideband speech codec; Frame structure“. 2 3GPP TS 26.202: “AMR Wideband Speech Codec; Interface to RAN“. 3 3GPP TS 26.190 : “AMR Wideband Speech Codec; Transcoding functions“. 4 3GPP TS 26.193: “AMR Wideband Speech Codec; Source Controlled Rate operation“.

26、5 3GPP TS 26.194: “AMR wideband speech codec; Voice Activity Detection (VAD)“. 6 3GPP TS 26.201: “AMR Wideband Speech Codec; Frame structure“. 7 3GPP TS 26.173 : “AMR Wideband Speech Codec; ANSI-C code“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the te

27、rms and definitions given in TS 26.190 2, TS 26.091 6, TS 26.192 3, TS 26.193 4 and TS 26.194 5 apply. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: ETSI ETSI TS 126 174 V13.1.0 (2016-04)6(3GPP TS 26.174 version 13.1.0 Release 13) 4 General Digital te

28、st sequences are necessary to test for a bit exact implementation of the adaptive multi-rate wideband (AMR-WB) speech transcoder (TS 26.190 2), voice activity detection (TS 26.194 5), comfort noise generation (TS 26.192 3), and source controlled rate operation (TS 26.193 4). The test sequences may a

29、lso be used to verify installations of the ANSI C code in TS 26.173 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 sequences for the VAD, comfort noise and source con

30、trolled rate operation. Clause 8 describes the method by which synchronisation is obtained between the test sequences and the speech codec under test. 5 Test sequence format This clause provides information on the format of the digital test sequences for the adaptive multi-rate wideband (AMR-WB) spe

31、ech transcoder (TS 26.190 3), voice activity detection (TS 26.194 5), comfort noise generation (TS 26.192 3), and source controlled rate operation (TS 26.193 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 pr

32、esent document. Following decompression, three types of file are provided: - Files for input 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 mo

33、de switching test T22.MOD All file formats are described in TS 26.173 7. 5.2 Codec homing Each *.INP file includes two homing frames (see TS 26.173 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

34、 a correct installation of the ANSI-C simulation (TS 26.173 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 testing, the first speech encoder output frame is undefined and need not be id

35、entical 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. 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 o

36、f a correct installation of the ANSI-C simulation (TS 26.173 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 testing, the first speech decoder output frame is undefined and need not be i

37、dentical to first frame in the *.OUT file, but all remaining speech decoder output frames shall be identical to the corresponding frames in the *.OUT file. ETSI ETSI TS 126 174 V13.1.0 (2016-04)7(3GPP TS 26.174 version 13.1.0 Release 13) 6 Speech codec test sequences This clause describes the test s

38、equences designed to exercise the adaptive multi-rate wideband (AMR-WB) speech transcoder (TS 26.190 3). 6.1 Codec 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-three

39、encoder input sequences are provided. Note that for the input sequences T00.INP to T03.INP, the amplitude figures are given in 14-bit precision. The active speech levels are given in dBov. - T00.INP - Synthetic harmonic signal. The pitch delay varies slowly from 34 to 231 samples. The minimum and ma

40、ximum amplitudes are -1475 and +5952. - T01.INP - Synthetic harmonic signal. The pitch delay varies slowly from 231 down to 34 samples. Amplitudes at saturation point -5386 and +21707. - T02.INP - Square sweep varying from 50 Hz to 7000 Hz. Amplitudes 32767. - T03.INP - Sinusoidal sweep varying from

41、 50 Hz to 7000 Hz. Amplitudes 6217. - T04.INP - Female speech, ambient noise, active speech level: -22.5 dBov, P.341 filtered. - T05.INP - Male speech, ambient noise, active speech level: -29.9 dBov, P.341 filtered. - T06.INP Female and male speech, ambient noise, active speech level: -36.1 dBov, P.

42、341 filtered. - T07.INP - Female and male speech, ambient noise, active speech level: -45.8 dBov, P.341 filtered. - T08.INP - Female and male speech, ambient noise, active speech level: -7.7 dBov, P.341 filtered. - T09.INP - Female and male speech, Hoth noise, active speech level: -37.4 dBov, P.341

43、filtered. - T10.INP - Female and male speech, Hoth noise, active speech level: -27.3 dBov, P.341 filtered. - T11.INP - Female and male speech, Hoth noise, active speech level: -16.9 dBov, P.341 filtered. - T12.INP - Female and male speech, ambient noise, active speech level: -46.0 dBov, P.341 filter

44、ed. - T13.INP - Speech, very high and low car noise, P.341 filtered. - T14.INP - Female and male speech, ambient noise, active speech level: -26.0 dBov, P.341 filtered. - T15.INP - Female and male speech, rain noise, active speech level: -37.2 dBov, P.341 filtered. - T16.INP - Female and male speech

45、, rain noise, active speech level: -26.5 dBov, P.341 filtered. - T17.INP - Female and male speech, rain noise, active speech level: -16.4 dBov, P.341 filtered. This file includes homing frame test. - T18.INP - Male speech, active speech level: -29.7 dBov, P.341 filtered, with many zero frames. - T19

46、.INP - Child speech, ambient noise, active speech level: -34.7 dBov, P.341 filtered. - T20.INP - Sequence for exercising the LPC vector quantisation codebooks and ROM tables of the codec. - T21.INP - Zero signal sequence. ETSI ETSI TS 126 174 V13.1.0 (2016-04)8(3GPP TS 26.174 version 13.1.0 Release

47、13) - T22.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 2385, 2305, 1985, 1825, 1585, 1425, 1265, 885

48、 or 660. The T00.INP and T01.INP sequences were designed to test the pitch lag of the adaptive multi-rate wideband speech encoder. In a correct implementation, the resulting speech encoder output parameters shall be identical to those specified in the T00_.COD and T01_.COD sequences, respectively. T

49、he T02.INP and T03.INP sequences are particularly suited for testing the LPC analysis, as well as for finding saturation problems. In a correct implementation, the resulting speech encoder output parameters shall be identical to those specified in the T02_.COD and T03_.COD sequences, respectively. The T04.INP and T05.INP sequences contain a lot of low-frequency components. In a correct implementation, the resulting speech encoder output parameters shall be identical to those specified in the T04_