hash stringlengths 32 32 | doc_id stringlengths 7 13 | section stringlengths 3 121 | content stringlengths 0 2.2M |
|---|---|---|---|
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.12.1 Channel Layouts in GroupEquatorOrUpper11 | Channel layout bitmasks that use GroupEquatorOrUpper11 fold-down coefficients are listed in Table 33. ETSI ETSI TS 103 584 V1.1.1 (2018-01) 57 Table 33: GroupEquatorOrUpper11 list_of_channel_masks[] 0x0000001E 0x0000181E 0x0006001E 0x0006181E 0x0000001F 0x0000181F 0x0006001F 0x0006181F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.12.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper11 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 34. Table 34: GroupEquatorOrUpper11 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.13 GroupEquatorOrUpper12 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.13.1 Channel Layouts in GroupEquatorOrUpper12 | Channel layout bitmasks that use GroupEquatorOrUpper12 fold-down coefficients are listed in Table 35. Table 35: GroupEquatorOrUpper12 list_of_channel_masks[] 0x0000005E 0x0000185E 0x0006005E 0x0006185E 0x0000005F 0x0000185F 0x0006005F 0x0006185F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.13.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper12 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 36. Table 36: GroupEquatorOrUpper12 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.14 GroupEquatorOrUpper13 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.14.1 Channel Layouts in GroupEquatorOrUpper13 | Channel layout bitmasks that use GroupEquatorOrUpper13 fold-down coefficients are listed in Table 37. Table 37: GroupEquatorOrUpper13 list_of_channel_masks[] 0x0000019E 0x0000199E 0x0006019E 0x0006199E 0x0000019F 0x0000199F 0x0006019F 0x0006199F 0x000001DE 0x000019DE 0x000601DE 0x000619DE 0x000001DF 0x000019DF 0x000601... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.14.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper13 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 38. Table 38: GroupEquatorOrUpper13 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.15 GroupEquatorOrUpper14 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.15.1 Channel Layouts in GroupEquatorOrUpper14 | Channel layout bitmasks that use GroupEquatorOrUpper14 fold-down coefficients are listed in Table 39. Table 39: GroupEquatorOrUpper14 list_of_channel_masks[] 0x0000A01E 0x0000A01F 0x3000001E 0x3000001F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.15.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper14 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 40. ETSI ETSI TS 103 584 V1.1.1 (2018-01) 59 Table 40: GroupEquatorOrUpper14 Fo... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.16 GroupEquatorOrUpper15 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.16.1 Channel Layouts in GroupEquatorOrUpper15 | Channel layout bitmasks that use fold-down coefficients in GroupEquatorOrUpper15 are defined in Table 41. Table 41: GroupEquatorOrUpper15 list_of_channel_masks[] 0x0030001E 0x0030001F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.16.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper15 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 42. Table 42: GroupEquatorOrUpper15 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.17 GroupEquatorOrUpper16 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.17.1 Channel Layouts in GroupEquatorOrUpper16 | Channel layout bitmasks that use fold-down coefficients in GroupEquatorOrUpper16 are listed in Table 43. Table 43: GroupEquatorOrUpper16 list_of_channel_masks[] 0x0040401E 0x0040401F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.17.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper16 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 44. ETSI ETSI TS 103 584 V1.1.1 (2018-01) 60 Table 44: GroupEquatorOrUpper16 Fo... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.18 GroupEquatorOrUpper17 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.18.1 Channel Layouts in GroupEquatorOrUpper17 | Channel layout bitmasks that use GroupEquatorOrUpper17 fold-down coefficients are listed in Table 45. Table 45: GroupEquatorOrUpper17 list_of_channel_masks[] 0x0040A01E 0x0040A01F 0x3040001E 0x3040001F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.18.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper17 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 46. Table 46: GroupEquatorOrUpper17 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.19 GroupEquatorOrUpper18 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.19.1 Channel Layouts in GroupEquatorOrUpper18 | Channel layout bitmasks that use GroupEquatorOrUpper18 fold-down coefficients are listed in Table 47. Table 47: GroupEquatorOrUpper18 list_of_channel_masks[] 0x0000A19E 0x0006A19E 0x3000019E 0x3006019E 0x0000A19F 0x0006A19F 0x3000019F 0x3006019F 0x0000A786 0x0006A786 0x30000786 0x30060786 0x0000A787 0x0006A787 0x300007... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.19.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper18 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; ETSI ETSI TS 103 584 V1.1.1 (2018-01) 61 Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 48. Table 48: GroupEquatorOrUpper18 Fo... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.20 GroupEquatorOrUpper19 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.20.1 Channel Layouts in GroupEquatorOrUpper19 | Channel layout bitmasks that use GroupEquatorOrUpper19 fold-down coefficients are listed in Table 49. Table 49: GroupEquatorOrUpper19 list_of_channel_masks[] 0x0030019E 0x00300786 0x0036019E 0x00360786 0x0030019F 0x00300787 0x0036019F 0x00360787 |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.20.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper19 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 50. Table 50: GroupEquatorOrUpper19 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.21 GroupEquatorOrUpper20 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.21.1 Channel Layouts in GroupEquatorOrUpper20 | Channel layout bitmasks that use GroupEquatorOrUpper20 fold-down coefficients are listed in Table 51. Table 51: GroupEquatorOrUpper20 list_of_channel_masks[] 0x0040419E 0x00404786 0x0046419E 0x00464786 0x0040419F 0x00404787 0x0046419F 0x00464787 ETSI ETSI TS 103 584 V1.1.1 (2018-01) 62 |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.21.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper20 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 52. Table 52: GroupEquatorOrUpper20 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.22 GroupEquatorOrUpper21 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.22.1 Channel Layouts in GroupEquatorOrUpper21 | Channel layout bitmasks that use GroupEquatorOrUpper21 fold-down coefficients are listed in Table 53. Table 53: GroupEquatorOrUpper21 list_of_channel_masks[] 0x0040A19E 0x0046A19E 0x3040019E 0x3046019E 0x0040A19F 0x0046A19F 0x3040019F 0x3046019F 0x0040A786 0x0046A786 0x30400786 0x30460786 0x0040A787 0x0046A787 0x304007... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.3.22.2 Virtual Speakers and their Fold-down Coefficients for GroupEquatorOrUpper21 | Since there are no virtual speakers in the equatorial plane, set the corresponding arrays to an empty list. eqtr_functions = []; eqtr_virt_srcs = []; Fold-down coefficients for virtual speakers in the upper hemisphere are derived from Table 54. Table 54: GroupEquatorOrUpper21 Fold-down Coefficients for Virtual Speakers... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4 Lower Hemisphere | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.1 Conditions for Lower Hemisphere Groups | The custom virtual sources for lower hemisphere were separated as there are only five tables shared with multiple groups defined in clause 7.3. For all the tables, the virtual sources in the lower hemisphere is fixed: = [−45°, −45°, 1, 45°, −45°, 1, −135°, −45°, 1, 135°, −45°, 1] ETSI ETSI TS 103 584 V1.1.1 ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.2 Functions for Virtual Speakers in the Lower Hemisphere | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.2.1 GetChannelLayoutMaskForLowerHemisphere | GetChannelLayoutMaskForLowerHemisphere()converts physical speaker layout into a masked layout for the look up tables in clause 7.4.2.2. The channel masks created by GetChannelLayoutMaskForLowerHemisphere() find the virtual sources and corresponding fold-down coefficients according to the bitmask corresponding to their ... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.2.2 GroupLower | The following structure gives a concrete representation for a group in the lower hemisphere virtual speakers. struct GroupLower { // An array listing all the channel masks supported by the group. uint32 list_of_channel_masks[]; // An array of lower hemisphere virtual speakers used by the group. Point lohemi_virt_srcs[]... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.2.3 list_of_all_groups_lower | The following list defines all the supported groups for custom virtual speakers in the upper hemisphere and the equatorial plane. list_of_all_groups_lower = { GroupLower1, GroupLower2, GroupLower3, GroupLower4, GroupLower5 }; |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.3 GroupLower1 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.3.1 Channel layouts in GroupLower1 | Channel layout bitmasks that use GroupLower1 fold-down coefficients are listed in Table 55. Table 55: GroupLower1 list_of_channel_masks[] 0x00000006 0x00001800 0x00060000 |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.3.2 Virtual Speakers and their Fold-down Coefficients for GroupLower1 | Fold-down coefficients for virtual speakers in the lower hemisphere are derived from Table 56. Table 56: GroupLower1 Fold-down Coefficients for Virtual Speakers in Lower Hemisphere Physical Speakers lohemi_functions[] ExclusiveOr (L,Lw,Lc) ExclusiveOr (R,Rw,Rc) Virtual Speakers lohemi_virt_srcs[] lohemi_folddown[][] (-... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.4 GroupLower2 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.4.1 Channel layouts in GroupLower2 | Channel layout bitmasks that use GroupLower2 fold-down coefficients are listed in Table 57. Table 57: GroupLower2 list_of_channel_masks[] 0x00000007 0x00001807 0x00060001 0x00060606 0x00061807 0x00000606 0x00001E00 0x00060006 0x00060607 0x00061E00 0x00000607 0x00001E01 0x00060007 0x00061800 0x00061E01 0x00001801 0x0000... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.4.2 Virtual Speakers and their Fold-down Coefficients for GroupLower2 | Fold-down coefficients for virtual speakers in the lower hemisphere are derived from Table 58. Table 58: GroupLower2 Fold-down Coefficients for Virtual Speakers in Lower Hemisphere Physical Speakers lohemi_functions[] ClosestAzEq (-40) ClosestAzEq(40) LeftLargestEqtr() RightLargestEqtr() Virtual Speakers lohemi_virt_sr... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.5 GroupLower3 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.5.1 Channel layouts in GroupLower3 | Channel layout bitmasks that use GroupLower3 fold-down coefficients are listed in Table 59. Table 59: GroupLower3 list_of_channel_masks[] 0x0000001E 0x0000181E 0x0006001E 0x0006181E 0x0000001F 0x0000181F 0x0006001F 0x0006181F |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.5.2 Virtual Speakers and their Fold-down Coefficients for GroupLower3 | Fold-down coefficients for virtual speakers in the lower hemisphere are derived from Table 60. Table 60: GroupLower3 Fold-down Coefficients for Virtual Speakers in Lower Hemisphere Physical Speakers lohemi_functions[] L R Ls Rs Virtual Speakers lohemi_virt_srcs[] lohemi_folddown[][] (-45, -45,1) 0 dB (45, -45,1) 0 dB (... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.6 GroupLower4 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.6.1 Channel layouts in GroupLower4 | Channel layout bitmasks that use GroupLower4 fold-down coefficients are listed in Table 61. Table 61: GroupLower4 list_of_channel_masks[] 0x0000005E 0x0000185E 0x0006005E 0x0006185E 0x0000005F 0x0000185F 0x0006005F 0x0006185F ETSI ETSI TS 103 584 V1.1.1 (2018-01) 66 |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.6.2 Virtual Speakers and their Fold-down Coefficients for GroupLower4 | Fold-down coefficients for virtual speakers in the lower hemisphere are derived from Table 62. Table 62: GroupLower4 Fold-down Coefficients for Virtual Speakers in Lower Hemisphere Physical Speakers lohemi_functions[] L R Ls Rs Cs Virtual Speakers lohemi_virt_srcs[] lohemi_folddown[][] (-45, -45,1) 0 dB (45, -45,1) 0 d... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.7 GroupLower5 | |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.7.1 Channel Layouts in GroupLower5 | Channel layout bitmasks that use GroupLower5 fold-down coefficients are listed in Table 63. Table 63: GroupLower5 list_of_channel_masks[] 0x0000019E 0x0000199E 0x0006019E 0x0006199E 0x0000019F 0x0000199F 0x0006019F 0x0006199F 0x000001DE 0x000019DE 0x000601DE 0x000619DE 0x000001DF 0x000019DF 0x000601DF 0x000619DF 0x0000... |
ec9366d6891164f86d2e1eadea31eda0 | 103 584 | 7.4.7.2 Virtual Speakers and their Fold-down Coefficients for GroupLower5 | Fold-down coefficients for virtual speakers in the lower hemisphere are derived from Table 64. Table 64: GroupLower5 Fold-down Coefficients for Virtual Speakers in Lower Hemisphere Physical Speakers lohemi_functions[] L R Lsr Rsr Virtual Speakers lohemi_virt_srcs[] lohemi_folddown[][] (-45, -45,1) 0 dB (45, -45,1) 0 dB... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 1 Scope | The present document provides objective measurement methodologies and speech transmission performance requirements for wireless wearable speech terminals; Headsets are out of scope. The present standard defines minimum performance requirements regardless of the physical and data link layers, enabling manufacturers and ... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 2 References | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 3 Definition of terms, symbols and abbreviations | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 3.1 Terms | For the purposes of the present document, the following terms and definitions apply: artificial ear: device for the calibration of earphones incorporating an acoustic coupler and a calibrated microphone for the measurement of the sound pressure and having an overall acoustic impedance similar to that of the median adul... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 3.2 Symbols | Void. |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 3.3 Abbreviations | For the purposes of the present document, the following abbreviations apply: a.c. alternative current AH,S,dt attenuation range in send direction during double talk AMR Adaptive Multi-Rate codec CDMA Code-Division Multiple Access CS Composite Source CSS Composite Source Signal DECT Digital Enhanced Cordless Telecommuni... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 4 Configurations and interfaces | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 4.1 Access networks | The present document applies to any wireless terminal whatever the access network, e.g. GSM, UMTS, VoLTE, 5G NR, Bluetooth®, WIFI WIMAX™, CDMA. 4.2 Additional (radio) links between the terminal and external electroacoustical devices The present document also applies when an additional radio link exists between the wire... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5 Test Configurations | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.1 Set-up interface | The generic schematic is applicable to any wireless link. ETSI ETSI TS 103 607 V1.1.1 (2024-07) 10 Figure 5.1: Set-up interface NOTE: The "whole" terminal includes all the components from "RF interface" to the transducers and may include an additional (radio) link. The air interface considered in the figure is not the ... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.2 Set-up for terminals | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.2.1 Introduction | For electroacoustical testing, HATS as described in Recommendation ITU-T P.58 [7] shall be used. The preferred way of testing a terminal is to connect it to a network simulator with exact defined settings and access points. The test sequences are fed in either electrically using a reference codec or using the direct si... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.2.2 Wrist-worn terminal | HATS measurement equipment shall be configured to the wrist-worn UE according to figure 5.2. The HATS should be positioned so that the HATS lip plane is at a distance dLF from the centre point of the visual display of the wrist-worn terminal. The distance dLF is specified by the manufacturer. A vertical angle θLF may a... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.2.3 Test setup for variable echo path | The test setup for variable echo path is as described in clause 5.2.2, except that an additional rotating reflecting surface is included. The additional rotating reflecting surface (panel) is a 30 cm × 40 cm panel made of an acoustically reflective material (e.g. piece of cardboard, wood, or plastic). The panel is posi... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.3 Acoustical environment | In general different acoustical environments have to be taken into account: either room noise and background noise are an inherent part of the test environment or room noise and background noise shall be eliminated to such an extent that their influence on the test results can be neglected. Unless stated otherwise, mea... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.4 Test signals | Due to the coding of the speech signals, care should be taken when using sinusoidal test signals for some wireless terminals/networks (e.g. GSM/3G). Appropriate test signals (general description) are defined in Recommendation ITU-T P.501 [11]. Unless stated otherwise the test signal to be used for the measurements shal... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.5 Calibration and test signal level | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.5.1 Send | Unless specified otherwise, the test signal level shall be -4,7 dBPa at the MRP. The various steps for calibration of the artificial mouth of HATS are described in Recommendation ITU-T P.581 [13]. The test setup shall be in conformance with, Figure 5.4 but, depending on the type of terminal, the appropriate distance an... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.5.2 Receive | Unless specified otherwise, the applied test signal level at the digital input shall be -16 dBm0. For binaural measurements two artificial ears are required. The type 3.3 or type 3.4 artificial ears as specified in Recommendation ITU-T P.57 [6] shall be used. All measurement values produced by HATS are intended to be f... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.5.3 Setup of background noise simulation | A setup for simulating realistic background noises in a lab-type environment is described in ETSI TS 103 224 [19]. ETSI ETSI TS 103 607 V1.1.1 (2024-07) 14 ETSI TS 103 224 [19] contains a description of the recording arrangement for realistic background noises, a description of the setup for a loudspeaker arrangement s... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.6 Environmental conditions for tests | The following conditions shall apply for the testing environment: a) Ambient temperature: 15 °C to 35 °C (inclusive); b) Relative humidity: 5 % to 85 %; c) Air pressure: 86 kPa to 106 kPa (860 mbar to 1 060 mbar). |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.7 Accuracy of test equipment | Unless specified otherwise, the accuracy of measurements made by test equipment shall be better than: Table 5.2: Accuracy of measurements Item Accuracy Electrical Signal Power Electrical Signal Power Sound pressure Time Frequency Clock accuracy ±0,2 dB for levels ≥ -50 dBV ±0,4 dB for levels < -50 dBV ±0,7 dB ±0,2 % ±0... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.8 Power feeding conditions | For terminal equipment which is directly powered from the mains supply, all tests shall be carried out within ±5 % of the rated voltage of that supply. If the equipment is powered by other means and those means are not supplied as part of the apparatus, all tests shall be carried out within the power supply limit decla... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 5.9 Influence of terminal delay on measurements | As delay is introduced by the terminal, care shall be taken for all measurements where exact position of the analysis window is required. It shall be checked that the test is performed on the test signal and not any other signal. ETSI ETSI TS 103 607 V1.1.1 (2024-07) 16 6 Codec independent requirements and associated M... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.1 Send and receive frequency response | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.1.1 Send frequency response | Requirement: The send sensitivity frequency response from the MRP to the measurement output (digital or analogue output according to measurement system used) shall be within the mask which can be drawn with straight lines between the breaking points in Table 6.1 on a logarithmic (frequency) - linear (dB sensitivity) sc... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.1.2 Receive frequency response | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.1.2.1 Wrist-worn terminal | Requirement: The receive sensitivity frequency response from the measurement input (digital or analogue input according to measurement system used) to ear of HATS free field corrected shall be within the mask which can be drawn with straight lines between the breaking points in Table 6.2 on a logarithmic (frequency) - ... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.2 Send and receive loudness ratings | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.2.1 Send Loudness Ratings | Requirement: The nominal values of SLR shall be: SLR = +13 ± 3 dB Measurement method: The terminal will be positioned as described in clause 5.2. The test signal to be used for the measurements shall be the British-English single talk sequence described in clause 7.3.2 of Recommendation ITU-T P.501 [11]. The spectrum o... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.2.2 Microphone (Mic) mute | Requirement The SLR (Send Loudness Rating) with mic mute on shall be at least 50 dB higher than with mic mute off. Measurement method The terminal will be positioned as described in clause 5.2. The test signal to be used for the measurements shall be the British-English single talk sequence described in clause 7.3.2 of... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.2.3 Receive Loudness Ratings | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.2.3.1 Wrist-worn terminal | Requirement: Nominal value of RLR will be +9 dB ± 3 dB. This value has to be fulfilled for one position of volume range. Value of RLR at upper part of volume range shall be less than (louder) or equal to +5 dB: RLR max ≤ +5 dB. Range of volume control shall be equal to or exceed 15 dB. Measurement method: The terminal ... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.3 Send and receive noise | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.3.1 Send Noise | Requirement: The send noise level shall not exceed -64 dBm0p. No peaks in the frequency domain higher than 10 dB above the average noise spectrum shall occur. Requirement as for other tests is identical for all types of terminals. Measurement method: The terminal will be positioned as described in clause 5.2. The femal... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.3.2 Receive Noise | Requirement: The receive noise level shall not exceed -54 dBPa(A) at nominal setting of the volume control. No peaks in the frequency domain higher than 10 dB above the average noise spectrum should occur. Measurement method: The terminal will be positioned as described in clause 5.2. The A-weighted noise level shall b... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.4 Send and receive distortion | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.4.1 Introduction | It is not intended to provide coder-dependant requirements but to assess the electro acoustic performances of the terminal. |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.4.2 Send distortion | Requirement: The ratio of signal to harmonic distortion shall be above the following mask. Table 6.3: Limits for harmonic distortion ratio for send Frequency (Hz) Signal to harmonic distortion ratio limit, send (dB) 200 25 315 26 400 30 1 000 30 2 000 30 NOTE: The limits for intermediate frequencies lie on straight lin... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.4.3 Receive distortion | Requirement: The ratio of signal to harmonic distortion shall be above the following mask. ETSI ETSI TS 103 607 V1.1.1 (2024-07) 22 Table 6.4: Limits for harmonic distortion ratio for receive Frequency Signal to distortion ratio limit, receive for vehicle mounted or desktop terminal at nominal volume Signal to distorti... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.5 Terminal Coupling Loss | Requirement: In order to meet talker echo objective requirements, the recommended Terminal Coupling Loss during single talk (TCL) should be greater than 55 dB when measured under free field conditions at nominal setting of volume control. The Terminal Coupling Loss TCL shall be ≥ 46 dB for all settings of the volume co... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.6 Stability Loss (or similar parameters) | Requirement: For the calculation the averaged measured echo level at each frequency band is referred to the averaged test signal level measured in each frequency band. It shall exceed 6 dB for all frequencies and for all settings of volume control. Measurement method: Test set-up is identical as for TCL. Before the act... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.7 Double Talk performance | |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.7.1 General | During double talk the speech is mainly determined by 2 parameters: impairment caused by echo during double talk and level variation between single and double talk (attenuation range). In order to guarantee sufficient quality under double talk conditions the Talker Echo Loudness Rating should be high and the attenuatio... |
d3083915de487502dfd3dbd7175d6266 | 103 607 | 6.7.2 Attenuation Range in Send Direction during Double Talk | Requirement: Based on the level variation in send direction during double talk AH,S,dt the behaviour of the terminal can be classified according to Table 6.5. Table 6.5: Category Classification of Send Attenuation Range Category (according to Recommendation ITU-T P.340 [9]) 1 2a 2b 2c 3 Full Duplex Capability Partial D... |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.