1、 ETSI TS 103 739 V1.1.2 (2010-09)Technical Specification Speech and multimedia Transmission Quality (STQ);Transmission requirements for wideband wireless terminals(handset and headset) from a QoS perspectiveas perceived by the userETSI ETSI TS 103 739 V1.1.2 (2010-09)2Reference RTS/STQ-00166-3 Keywo
2、rds speech, terminal 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 Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the p
3、resent document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version is the Portable Document Format (PDF). In ca
4、se of dispute, the reference shall be the printing on ETSI printers of the PDF 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 a
5、nd other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced except as authori
6、zed by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2010. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the b
7、enefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks
8、 registered and owned by the GSM Association. ETSI ETSI TS 103 739 V1.1.2 (2010-09)3Contents Intellectual Property Rights 5g3Foreword . 5g3Introduction 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviations . 8g33.1 Definitions 8g33.
9、2 Abbreviations . 8g34 Configurations and interfaces . 9g34.1 Access networks . 9g34.2 Additional (radio) links between the terminal and external electroacoustical devices . 9g35 Test Configurations 9g35.1 Set-up interface 9g35.2 Set-up for terminals 10g35.3 Acoustical environment 10g35.4 Test signa
10、ls . 10g35.5 Calibration 11g35.6 Environmental conditions for tests . 12g35.7 Accuracy of test equipment 12g35.8 Power feeding conditions . 13g35.9 Influence of terminal delay on measurements 13g36 Codec independent requirements and associated Measurement Methodologies 13g36.1 Send and receive frequ
11、ency response . 13g36.1.1 Send frequency response 13g36.1.2 Receive frequency response 15g36.2 Send and receive loudness ratings 18g36.2.1 Send Loudness Rating (SLR) 18g36.2.2 Receive Loudness Rating (RLR) 18g36.2.3 LR stability . 19g36.3 Sidetone parameters . 19g36.3.1 SideTone Masking Rating (STMR
12、) 19g36.3.2 Sidetone delay . 20g36.3.3 D-factor . 20g36.4 Send and receive noise . 20g36.4.1 Send noise. 20g36.4.2 Receive noise 21g36.5 Send and receive distortion 21g36.5.1 Send Distortion . 21g36.5.2 Receive distortion . 22g36.6 Stability loss . 22g36.7 TCLw (or similar parameters) 24g36.8 Double
13、 talk performance 24g36.8.1 Attenuation Range in Send Direction during Double Talk AH,S,dt . 25g36.8.2 Attenuation Range in Receive Direction during Double Talk AH,R,dt26g36.8.3 Detection of echo components during double Talk 27g36.8.4 Minimum activation level and sensitivity of double talk detectio
14、n 29g36.9 Switching parameters . 29g36.9.1 Activation in Send Direction 30g36.9.2 Minimum activation level and sensitivity in Receive direction 31g36.9.3 Automatic level control 31g3ETSI ETSI TS 103 739 V1.1.2 (2010-09)46.9.4 Silence Suppression and Comfort Noise Generation 31g36.10 Background noise
15、 performance 31g36.10.1 Performance in send direction in the presence of background noise 31g36.10.2 Speech Quality in the Presence of Background Noise 32g36.10.3 Quality of Background Noise Transmission (with Far End Speech) 33g36.10.4 Quality of Background Noise Transmission (with Near End Speech)
16、 33g36.11 Quality of echo cancellation . 34g36.11.1 Temporal echo effects . 34g36.11.2 Spectral Echo Attenuation 34g36.11.3 Occurrence of Artefacts 35g36.12 Send and receive delay or round trip delay 35g36.13 Objective listening Quality in send and receive direction 36g37 Codec dependent requirement
17、s and associated Measurement Methodologies . 37g37.1 Speech Coders 37g37.2 Send and receive delay or round trip delay 37g37.3 Objective listening Quality in send and receive direction 37g38 Requirements and associated Measurement Methodologies (with an additional radio link between the terminal and
18、external electroacoustical devices) 37g3Annex A (informative): Bibliography . 38g3History 39g3ETSI ETSI TS 103 739 V1.1.2 (2010-09)5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essenti
19、al 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 Secretariat. Latest updates a
20、re available on the ETSI Web server (http:/webapp.etsi.org/IPR/home.asp). 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 on the ETSI
21、 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 Technical Committee Speech and multimedia Transmission Quality (STQ). Introduction The present document covers wireless speech terminals. It aims
22、to enhance the interoperability and end-to-end quality with all other types of terminals. ETSI ETSI TS 103 739 V1.1.2 (2010-09)61 Scope The present document provides speech transmission performance requirements for wireless terminals; it addresses all types of wireless terminals, including softphone
23、s. The present document addresses handset and headset functions of wideband wireless terminals. In contrast to other standards which define minimum performance requirements it is the intention of the present document to specify terminal equipment requirements which enable manufacturers and service p
24、roviders to enable good quality end-to-end speech performance as perceived by the user whatever be the radio link (terminals may implement different radio links with the access network). When an additional radio link between the terminal and external electroacoustical devices is used (e.g. Bluetooth
25、 link), the present document will address the overall quality. In the present document objective measurement methodologies and requirements for wireless speech terminals are given. In addition to basic testing procedures, the present document describes advanced testing procedures taking into account
26、 further quality parameters as perceived by the user. The requirements available in the present document will ensure a high compatibility across access networks with all types of terminals. It is the aim to optimize the listening and talking quality, conversational performance, as well as the use in
27、 noisy environment. Related requirements and test methods will be defined in the present document. For all the functions, the present document will consider the limitations in audio performance due to different form factors (e.g. size, shape). Terminals which are not intended to be connected to publ
28、ic networks are outside the scope of the present document. 2 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
29、 of the reference document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI c
30、annot guarantee their long term validity. 2.1 Normative references The following referenced documents are necessary for the application of the present document. 1 ETSI EG 202 396-1: “Speech and multimedia Transmission Quality (STQ); Speech quality performance in the presence of background noise; Par
31、t 1: Background noise simulation technique and background noise database“. 2 ETSI EG 202 396-3: “Speech Processing, Transmission and Quality Aspects (STQ); Speech Quality performance in the presence of background noise Part 3: Background noise transmission - Objective test methods“. 3 ITU-T Recommen
32、dation G.122: “Influence of national systems on stability and talker echo in international connections“. 4 ITU-T Recommendation P.50: “Artificial voices“. ETSI ETSI TS 103 739 V1.1.2 (2010-09)75 ITU-T Recommendation P.56: “Objective measurement of active speech level“. 6 ITU-T Recommendation P.57: “
33、Artificial ears“. 7 ITU-T Recommendation P.58: “Head and torso simulator for telephonometry“. 8 ITU-T Recommendation P.64: “Determination of sensitivity/frequency characteristics of local telephone systems“. 9 ITU-T Recommendation P.79: “Calculation of loudness ratings for telephone sets“. 10 ITU-T
34、Recommendation P.340: “Transmission characteristics and speech quality parameters of hands-free terminals“. 11 ITU-T Recommendation P.380: “Electro-acoustic measurements on headsets“. 12 ITU-T Recommendation P.501: “Test signals for use in telephonometry“. 13 ITU-T Recommendation P.502: “Objective t
35、est methods for speech communication systems using complex test signals“. 14 ITU-T Recommendation P.581: “Use of head and torso simulator (HATS) for hands-free terminal testing“. 15 IEC 61672: “Electroacoustics - Sound Level Meters“. 16 ISO 3 (1973): “Preferred numbers - Series of preferred numbers“
36、. 17 ETSI TS 126 171: “Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); AMR speech codec, wideband; General description (3GPP TS 26.171 version 6.0.0 Release 6)“. 18 ITU-T Recommendation G.729.1: “G.729 based Embedded Variable bit-rate coder:
37、An 8-32 kbit/s scalable wideband coder bitstream interoperable with G.729“. 19 ITU-T Recommendation G.722: “7 kHz audio-coding within 64 kbit/s“. 20 ITU-T Recommendation G.711.1: “Wideband embedded extension for G.711 pulse code modulation“. 21 ITU-T Recommendation G.722.2: “Wideband coding of speec
38、h at around 16 kbit/s using Adaptive Multi-Rate Wideband (AMR-WB)“. 2.2 Informative references The following referenced documents are not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 ETSI TS 103 737: “Speech and multimed
39、ia Transmission Quality (STQ); Transmission requirements for narrowband wireless terminals (handset and headset) from a QoS perspective as perceived by the user“. ETSI ETSI TS 103 739 V1.1.2 (2010-09)83 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the follo
40、wing 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 adult human ear over a given freque
41、ncy band codec: combination of an analogue-to-digital encoder and a digital-to-analogue decoder operating in opposite directions of transmission in the same equipment diffuse field equalization: equalization of the HATS sound pick-up, equalization of the difference, in dB, between the spectrum level
42、 of the acoustic pressure at the ear Drum Reference Point (DRP) and the spectrum level of the acoustic pressure at the HATS Reference Point (HRP) in a diffuse sound field with the HATS absent by applying the reverse nominal curve of table 3 of ITU-T Recommendation P.58 7 Head And Torso Simulator (HA
43、TS) for telephonometry: manikin extending downward from the top of the head to the waist, designed to simulate the sound pick-up characteristics and the acoustic diffraction produced by a median human adult and to reproduce the acoustic field generated by the human mouth Mouth Reference Point (MRP):
44、 is located on axis and 25 mm in front of the lip plane of a mouth simulator nominal setting of the volume control: when a receive volume control is provided, the setting which is closest to the nominal RLR of 2 dB 3.2 Abbreviations For the purposes of the present document, the following abbreviatio
45、ns apply: a.c. alternative current CDMA Code Division Multiple Access CSS Composite Source Signal D D-Value of Terminal DECT Digital Enhanced Cordless Telecommunications DRP ear Drum Reference Point ERP Ear Reference Point FFT Fast Fourier Transform G-MOS-LQOw Overall transmission quality for wideba
46、nd systems GSM Global System for Mobile communication (3GPP) HATS Head And Torso Simulator HRP HATS Reference Point MRP Mouth Reference PointN-MOS-LQOw Transmission quality of the background noise for wideband systems POI Point Of Interconnect QoS Quality of Service RLR Receive Loudness Rating SLR S
47、end Loudness Rating S-MOS-LQOw Transmission quality of the speech for wideband systems STMR SideTone Masking Rating TCLw Terminal Coupling Loss (weighted) UMTS Universal Mobil Telecommunications System WIFI Wireless fidelity WIMAX Worldwide Interoperability for Microwave ACCess (note that it is a Tr
48、ademark) ETSI ETSI TS 103 739 V1.1.2 (2010-09)94 Configurations and interfaces The present document is intended to be applicable for different wireless access networks and for additional radio links. 4.1 Access networks The present document applies to any wireless terminal whatever the network acces
49、s, e.g. GSM, UMTS, DECT, Bluetooth, WIFI, WIMAX, and CDMA. 4.2 Additional (radio) links between the terminal and external electroacoustical devices The whole terminal may include additional (radio) links. The most of the requirements and test methods apply to the whole terminal. When specific requirements or test methods are needed, they can be found in clause 8. 5 Test Configurations 5.1 Set-up interface The generic schematic as defined in figure 5.1.1 is applicable to any wireless link. NOTE: The “whole“ terminal includes all
