• There are no items in your cart

EG 201 377-2 : 1.3.1

Current
Current

The latest, up-to-date edition.

SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ); SPECIFICATION AND MEASUREMENT OF SPEECH TRANSMISSION QUALITY; PART 2: MOUTH-TO-EAR SPEECH TRANSMISSION QUALITY INCLUDING TERMINALS
Available format(s)

Hardcopy , PDF

Language(s)

English

Intellectual Property Rights
Foreword
Introduction
1 Scope
2 References
3 Definitions and abbreviations
  3.1 Definitions
  3.2 Abbreviations
4 General considerations for end-to-end speech quality evaluations
5 Test configurations
  5.1 Test setup for terminals
  5.2 Setup of the electrical interfaces
  5.3 Test signals
  5.4 Accuracy of test equipment
6 Test conditions
  6.1 Acoustic environment
  6.2 Network conditions, general
7 Measurement of "standard" parameters
  7.1 Sending frequency response
  7.2 Receiving frequency response
  7.3 Overall frequency response
  7.4 Sending (and connection) loudness rating
  7.5 Receiving (and connection) loudness rating
  7.6 Overall loudness rating
  7.7 Sidetone masking rating
  7.8 Listener sidetone
  7.9 Measurement and calculation of the value of the
       D-factor (DelSM)
  7.10 Delay
  7.11 Terminal coupling loss
  7.12 Talker echo loudness rating
  7.13 Weighted echo path loss
  7.14 Distortion
  7.15 Sensitivity against out-of-band signals in sending
  7.16 Spurious out-of-band signals in receiving
8 Advanced measurement procedures, taking into account the
  conversational situation
  8.1 Measurement setup for objective tests
  8.2 Practical realization of test signals
  8.3 Quality of background noise transmission
  8.4 Double talk performance
  8.5 Switching characteristics
  8.6 Level adjustments by companding or AGC
  8.7 Additional echo disturbances
  8.8 Speech sound quality
Annex A (informative): Bibliography
History

Sums up and gives guidance about the main factors that affect speech quality in end-to-end scenarios; and specifies test methods for end-to-end speech quality testing.

Committee
STQ
DocumentType
Standard
Pages
50
PublisherName
European Telecommunications Standards Institute
Status
Current

ES 202 718 : 1.2.1 SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); TRANSMISSION REQUIREMENTS FOR IP-BASED NARROWBAND AND WIDEBAND HOME AND NETWORK MEDIA GATEWAYS FROM A QOS PERSPECTIVE AS PERCEIVED BY THE USER
TR 102 648-1 : 1.1.1 SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ); TEST METHODOLOGIES FOR ETSI TEST EVENTS AND RESULTS; PART 1: VOIP SPEECH QUALITY TESTING
TR 102 521 : 1.1.1 SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ); SUPPORT TO TC EMTEL FOR QOS AND TRANSMISSION QUALITY ASPECTS FOR END-TO-END SERVICES

TR 102 251 : 1.1.1 SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ); ANONYMOUS TEST REPORT FROM 2ND SPEECH QUALITY TEST EVENT 2002
ISO 3:1973 Preferred numbers Series of preferred numbers
EN 300 969 : 8.0.1 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - HALF RATE SPEECH - HALF RATE SPEECH TRANSCODING
EG 201 050 : 1.2.2 SPEECH PROCESSING, TRANSMISSION AND QUALITY ASPECTS (STQ) - OVERALL TRANSMISSION PLAN ASPECTS FOR TELEPHONY IN A PRIVATE NETWORK
TR 101 110 : 8.0.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) (GSM); CHARACTERISATION; TEST METHODS AND QUALITY ASSESSMENT FOR HANDSFREE MOBILE STATIONS (MSS)
TIA/EIA 810 : B2006 TELECOMMUNICATIONS TELEPHONE TERMINAL EQUIPMENT TRANSMISSION REQUIREMENTS FOR NARROWBAND DIGITAL TELEPHONES
EN 300 903 : 8.1.1 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - TRANSMISSION PLANNING ASPECTS OF THE SPEECH SERVICE IN THE GSM PUBLIC LAND MOBILE NETWORK (PLMN) SYSTEM (GSM 03.50 VERSION 8.1.1 RELEASE 1999)
TS 100 961 : 8.2.0 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+); FULL RATE SPEECH; TRANSCODING
TBR 008 : 20002 INTEGRATED SERVICES DIGITAL NETWORK (ISDN) - TELEPHONY 3,1 kHz TELESERVICE - ATTACHMENT REQUIREMENTS FOR HANDSET TERMINALS
EN 300 726 : 8.0.1 DIGITAL CELLULAR TELECOMMUNICATIONS SYSTEM (PHASE 2+) - ENHANCED FULL RATE (EFR) SPEECH TRANSCODING
IEC 61260:1995 Electroacoustics - Octave-band and fractional-octave-band filters
EG 201 377-1 : 1.3.2 SPEECH AND MULTIMEDIA TRANSMISSION QUALITY (STQ); SPECIFICATION AND MEASUREMENT OF SPEECH TRANSMISSION QUALITY; PART 1: INTRODUCTION TO OBJECTIVE COMPARISON MEASUREMENT METHODS FOR ONE-WAY SPEECH QUALITY ACROSS NETWORKS

View more information
US$17.97
Excluding Tax where applicable

Access your standards online with a subscription

Features

  • Simple online access to standards, technical information and regulations.

  • Critical updates of standards and customisable alerts and notifications.

  • Multi-user online standards collection: secure, flexible and cost effective.