TIA-1017-2005 Minimum Performance Specification for the Source-Controlled Variable-Rate Multimode Wideband Speech Codec (VMR-WB) - Service Option 62 for Spread Spectrum Systems (In.pdf

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12、 FUNDAMENTAL ELEMENT OF THE USE OF THE CONTENTS HEREOF, AND THESE CONTENTS WOULD NOT BE PUBLISHED BY TIA WITHOUT SUCH LIMITATIONS. TIA-1017 iTABLE OF CONTENTS 1 TABLE OF CONTENTS. i 2 1 INTRODUCTION .1 3 1.1 SCOPE3 4 1.2 DEFINITIONS .5 5 1.3 TEST MODEL FOR THE SPEECH CODEC 7 6 2 CODEC MINIMUM STANDA

13、RDS.9 7 2.1 OBJECTIVE PERFORMANCE TESTING .9 8 2.1.1 Average Data Rate Test .9 9 2.1.1.1 Average Data Rate Computation10 10 2.1.1.2 Average Data Rate Requirement .10 11 2.1.2 Bad Packet Detection Test .11 12 2.1.3 Ensuring Proper Encoded Frame Packet Files.12 13 2.1.4 Unity Gain Requirement12 14 2.1

14、.5 Limits on Algorithmic Delay.12 15 2.2 SUBJECTIVE PERFORMANCE TESTING14 16 2.2.1 Definition .14 17 2.2.2 Method of Measurement .14 18 2.2.3 Test Conditions .14 19 2.2.3.1 Subjective Experiment I15 20 2.2.3.2 Subjective Experiment II.16 21 2.2.3.3 Subjective Experiment III17 22 2.2.3.4 Numerical Pa

15、rameters for Listening Experiments 18 23 2.2.4 Source Speech Material19 24 2.2.4.1 Source File Naming Procedure.19 25 2.2.4.2 Source Speech Material for Experiment I.20 26 2.2.4.3 Source Speech Material for Experiment II20 27 2.2.4.4 Source Speech Material for Experiment III.20 28 2.2.5 Processing o

16、f Speech Material .21 29 2.2.5.1 Processed File Naming Procedure.21 30 2.2.5.2 Encoding by the Master and Test Codecs23 31 2.2.5.2.1 Encoding by the Master Codec .23 32 2.2.5.2.2 Encoding by the Test Codec23 33 2.2.5.3 Decoding by the Master/Test and Test/Master Codecs .23 34 2.2.5.4 Introduction of

17、 Impairments 23 35 2.2.6 Randomization 24 36 2.2.7 Presentation24 37 2.2.8 Listeners24 38 2.2.9 Listening Test Procedure 25 39 2.2.10 Analysis of Results27 40 2.2.11 Minimum Subjective Performance Requirement 27 41 2.2.11.1 MSPR for Test-conditions with Four Codec-combinations 27 42 2.2.12 Expected

18、Results for Reference Conditions .29 43 3 CODEC STANDARD TEST CONDITIONS 31 44 3.1 STANDARD EQUIPMENT .31 45 3.1.1 Basic Equipment .31 46 3.1.2 Subjective Test Equipment .32 47 3.1.2.1 Audio Path 33 48 3.1.2.2 Calibration.33 49 3.2 STANDARD ENVIRONMENTAL TEST CONDITIONS.33 50 TIA-1017 ii3.3 STANDARD

19、 SOFTWARE TEST TOOLS34 1 3.3.1 Floating-point Master Codec wb_enc_fl(.exe), wb_dec_fl(.exe)34 2 3.3.2 Fixed-point Reference Codec wb_enc_fx(.exe), wb_dec_fx(.exe)34 3 3.3.3 Fixed-point OEM Test Codec wb_enc_ft(.exe), wb_dec_ft(.exe)34 4 3.3.4 Channel Model Utilities fersig25(.exe) and wb_iwf(.exe).3

20、5 5 3.3.5 Channel Error and Signaling Masks fer_Xpct_mask(.bin) and d_b_Ypct_mask(.bin).35 6 3.3.6 VMR-WB Host Lab Codecs Processing Scripts .35 7 3.3.6.1 vmrwbcdrc_tvec_init .35 8 3.3.6.2 vmrwbcdrc_shtchk 35 9 3.3.6.3 vmrwbcdr_lngchk35 10 3.3.6.4 vmrwbcdr_chkdif.36 11 3.3.6.5 vmrwbcdr_intrcnct.36 1

21、2 3.3.7 VMR-WB Host Lab Codecs and References Post-Processing Scripts 36 13 3.3.7.1 vmrwbcdr_pstprc 36 14 3.3.7.2 vmrwbcref_pstprc .36 15 3.3.7.3 vmrwbcdr_split_files .36 16 3.3.8 STL2000 Utilities.36 17 3.3.8.1 STL2000 Operator Utility oper(.exe)36 18 3.3.8.2 STL2000 Operator Utility fdelay(.exe) .

22、37 19 3.3.8.3 STL2000 Filter Utility filter(.exe) 37 20 3.3.8.4 STL2000 Scaling Utility scaldemo(.exe)37 21 3.3.8.5 STL2000 Active Level Utility sv56demo(.exe).37 22 3.3.8.6 STL2000 MNRU Utility mnrudemo(.exe).37 23 3.3.9 VMR-WB Packet Sanity Check Utility pkt_sanity_check(.exe)37 24 3.3.10 VMR-WB M

23、PS Software Distribution38 25 3.4 MASTER CODEC38 26 3.4.1 Floating-Point Master Codec Program Files.38 27 3.4.2 Compiling the Floating-Point Master Codec Simulation .38 28 3.4.3 Running the Master Codec Simulation .39 29 3.4.4 File Formats 40 30 3.4.5 Verifying Proper Operation of the Floating-Point

24、 Master Codec 40 31 3.5 FIXED-POINT REFERENCE CODEC42 32 3.5.1 Fixed-Point Reference Codec Program Files .42 33 3.5.2 Compiling the Fixed-Point Reference Codec Simulation42 34 3.5.3 Running the Reference Fixed-Point Codec Simulation 43 35 3.5.4 File Formats 44 36 3.5.5 Verifying Proper Operation of

25、the Reference Fixed-Point Codec.44 37 3.6 FIXED-POINT OEM TEST CODEC .45 38 3.6.2 Compiling the Fixed-Point OEM Test Codec Simulation 46 39 3.6.3 Running the Fixed-Point OEM Test Codec Simulation.46 40 3.6.4 File Formats 47 41 3.6.5 Verifying Proper Operation of the Fixed-Point OEM Test Codec .47 42

26、 3.6.5.1 OEM Fixed-point Codec Verification Processing Step1 48 43 3.6.5.2 OEM Fixed-point Codec Verification Processing Step2 48 44 3.6.5.3 OEM Fixed-point Codec Verification Processing Step3 49 45 3.6.5.4 OEM Fixed-point Codec Verification Processing Step4 49 46 3.6.5.5 OEM Fixed-point Codec Verif

27、ication Processing Step5 50 47 3.6.5.6 OEM Fixed-point Codec Verification Processing Step6 50 48 3.6.5.7 OEM Fixed-point Codec Verification Processing Step7 51 49 3.6.5.8 OEM Fixed-point Codec Verification Processing Step8 51 50 3.7 CONTENTS OF SOFTWARE DISTRIBUTION .51 51 52 53 54 TIA-1017 iiiAPPEN

28、DIX A INFORMATIVE ADDENDUM TO THE VMR-WB MPS 54 1 A.1 INTRODUCTION .54 2 A.2 OVERVIEW OF THE VMR-WB MPS DISTRIBUTION.54 3 A.3 DATA SPACE SETUP FOR PERFORMANCE OF THE VMR-WB MPS TEST PROCEDURE.54 4 A.4 VMR-WB MPS TEST PROCESSING 54 5 A.5 STEPS FOR PERFORMANCE OF THE VMR-WB MPS TEST PROCESSING.56 6 A.

29、6 VMR-WB MPS PC-CYGWIN HOST LAB PROCESSING SCRIPTS.59 7 A.7 VMR-WB MPS PC-LINUX HOST LAB PROCESSING SCRIPTS 63 8 A.8 PROCESSED FILES IDENTIFICATION .67 9 APPENDIX B PRESENTATION AND ANALYSIS WORKBOOK.73 10 B.1 INTRODUCTION .73 11 B.2 THE EXCELWORKBOOK .73 12 B.2.1 Processed File Identities .73 13 B.

30、2.2 ADR Input and Analysis Worksheets .73 14 B.2.3 Experiment e Overview74 15 B.2.4 Experiment e Presentation Sequences74 16 B.2.5 Experiment e Raw Data Input Worksheet 75 17 B.2.6 Experiment e Dunnetts Analysis Worksheet nv Codec .75 18 APPENDIX C HARDWARE-INCLUSIVE VERIFICATION PROCESSING.76 19 C.

31、1 OEM FIXED-POINT CODEC VERIFICATION STEP1 RUN PROCESS SCRIPT IN SECTION 3.6.5.1.77 20 C.2 HARDWARE-INCLUSIVE STEP2 REPLACES PROCESS SCRIPT IN SECTION 3.6.5.2.77 21 C.3 HARDWARE-INCLUSIVE STEP3 REPLACES PROCESS SCRIPT IN SECTION 3.6.5.3.77 22 C.4 HARDWARE-INCLUSIVE STEP4 REPLACES PROCESS SCRIPT IN S

32、ECTION 3.6.5.4.78 23 C.5 OEM FIXED-POINT CODEC VERIFICATION STEP5 RUN PROCESS SCRIPT IN SECTION 3.6.5.5.78 24 C.6 HARDWARE-INCLUSIVE STEP6 REPLACES PROCESS SCRIPT IN SECTION 3.6.5.6.78 25 C.7 OEM FIXED-POINT CODEC VERIFICATION STEP7 RUN PROCESS SCRIPT IN SECTION 3.6.5.7.79 26 C.8 OEM FIXED-POINT COD

33、EC VERIFICATION STEP8 RUN PROCESS SCRIPT IN SECTION 3.6.5.8.79 27 28 TIA-1017 FIGURES and TABLES ivFIGURE 1.3-1. TEST MODEL.7 1 FIGURE 2.2.9-1. INSTRUCTIONS FOR LISTENERS .26 2 FIGURE 2.2.12-1. MOS VERSUS MNRU.29 3 FIGURE 3.1.1-1. BASIC TEST EQUIPMENT .31 4 FIGURE 3.1.2-1. SUBJECTIVE TESTING EQUIPME

34、NT CONFIGURATION .32 5 6 TABLE 2.1.1.2-1: ADR LIMITS FOR CLEAN AND NOISY SPEECH.10 7 TABLE 2.1.2-1: BAD PACKET FRAME NUMBERS IN TEST_BAD_PACKET.PKT11 8 TABLE 2.1.2-2: STATISTICS OF BAD PACKETS IN TEST_BAD_PACKET.PKT11 9 TABLE 2.2.3.1-1. LISTENING EXPERIMENT I.15 10 TABLE 2.2.3.2-1. LISTENING EXPERIM

35、ENT II16 11 TABLE 2.2.3.3-1. LISTENING EXPERIMENT III.17 12 TABLE 2.2.3.4-1. NUMERICAL PARAMETERS FOR LISTENING EXPERIMENTS18 13 TABLE 3.4.4-1. OUTPUT PACKET FILE STRUCTURE FOR THE WIDEBAND CODEC.40 14 TABLE 3.7.1 DESCRIPTION OF COMPANION SOFTWARE DISTRIBUTION CONTENTS .51 15 16 TIA-1017 vNOTES 1 1.

36、 The associated TIA-1016, “Source-Controlled Variable-Rate Multimode Wideband Speech 2 Codec (VMR-WB) Service Option 62” provides the algorithmic specification. 3 2. This document uses the following verbal forms: “Shall” and “shall not” identify requirements 4 to be followed strictly to conform to t

37、he standard and from which no deviation is permitted. 5 “Should” and “should not” indicate that one of several possibilities is recommended as 6 particularly suitable, without mentioning or excluding others; that a certain course of action is 7 preferred but not necessarily required; or that (in the

38、 negative form) a certain possibility or 8 course of action is discouraged but not prohibited. “May” and “need not” indicate a course of 9 action permissible within the limits of the standard. “Can” and “cannot” are used for 10 statements of possibility and capability, whether material, physical, or

39、 causal. 11 3. Footnotes appear at various points in this specification to elaborate and further clarify items 12 discussed in the body of the specification. 13 4. Unless indicated otherwise, this document presents numbers in decimal form. 14 5. Binary numbers are distinguished in the text by the us

40、e of single quotation marks. In some 15 tables, binary values may appear without single quotation marks if table notation clearly 16 specifies that values are binary. The character x is used to represent a binary bit of 17 unspecified value. For example xxx00010 represents any 8-bit binary value suc

41、h that the 18 least significant five bits equal 00010. 19 6. Hexadecimal numbers (base 16) are distinguished in the text by use of the form 0xhKh, 20 where hKh represents a string of hexadecimal digits. For example, 0x2FA1 represents a 21 number whose binary value is 10111110100001 and whose decimal

42、 value is 12913. 22 23 TIA-1017 viNOTES 1 6. The following conventions apply to mathematical expressions in this standard: 2 x indicates the largest integer less than or equal to x: 1.1 = 1, 0.1 = 1, and 1.1 =-2. 3 x indicates the smallest integer greater than or equal to x: 1.1 = 2, 0.2 = 2, and 1.

43、1 =-4 1. 5 x indicates the absolute value of x: 17 =17, 17 =17. 6 indicates exclusive OR. 7 min(x, y) indicates the minimum of x and y. 8 max(x, y) indicates the maximum of x and y. 9 In figures, indicates multiplication. In formulas within the text, multiplication is implicit. For 10 example, if h(

44、n) and pL(n) are functions, then h(n) pL(n) = h(n) pL(n). 11 x mod y indicates the remainder after dividing x by y: x mod y = x - (y yx / ). 12 round(x) is traditional rounding: round(x) = sign(x) 5.0+x , where 13 () .0x10x1xsign=14 indicates summation. If the summation symbol specifies initial and

45、terminal values, and the 15 initial value is greater than the terminal value, then the value of the summation is 0. For example, 16 if N=0, and if f(n) represents an arbitrary function, then 17 =N1n0.f(n)18 The bracket operator, , isolates individual bits of a binary value. VARn refers to bit n of t

46、he 19 binary representation of the value of the variable VAR, such that VAR0 is the least significant bit 20 of VAR. The value of VARn is either 0 or 1. 21 Unless otherwise specified log(x) denotes logarithm at base 10 throughout this document. 22 23 TIA-1017 viiReferences 1 The following standards

47、contain provisions, which, through reference in this text, constitute provisions 2 of this Standard. At the time of publication, the editions indicated were valid. All standards are 3 subject to revision, and parties to agreements based on this Standard are encouraged to investigate 4 the possibilit

48、y of applying the most recent editions of the standards indicated below. ANSI, 3GPP2, 5 and ITU-T maintain registers of currently valid national standards published by them. 6 Normative References 7 1. TIA-1016, Source-Controlled Variable-Rate Multimode Wideband Speech Codec (VMR-WB), 8 Service Opti

49、on 62 for Spread Spectrum Systems. 9 2. ANSI S1.4-1983 (R2001), American National Standards Specification for Sound Level Meters. 10 3. ANSI S1.4A-1985 (R2001), American National Standards Specification for Sound Level Meters 11 (Supplement to ANSI S4.1-1983). 12 4. ITU-T, The International Telecommunications Union, Blue Book, Vol. III, Telephone Transmission 13 Quality, IXth Plenary Assembly, Melbourne, 14-25 November, 1988, Recommendation