IEEE 269 : 2010

STANDARD METHODS FOR MEASURING TRANSMISSION PERFORMANCE OF ANALOG AND DIGITAL TELEPHONE SETS, HANDSETS, AND HEADSETS

Institute of Electrical & Electronics Engineers

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1 Overview
2 Normative references
3 Definitions
4 Test equipment and setup
5 Calibration
6 Test procedure for analog sets
7 Test procedures for digital and 4-wire systems
8 Test procedures for Analog 4-wire handsets and
  headsets
Annex A (normative) - Ear simulators with flexible
                        pinnas and positioning devices
Annex B (normative) - Alternative ear simulators,
                        mouth simulator, and test
                        fixture
Annex C (normative) - DRP to ERP and related
                        translations
Annex D (normative) - Hoth room noise
Annex E (normative) - Test signals
Annex F (normative) - Levels
Annex G (normative) - Analysis methods
Annex H (normative) - Loudness rating calculations
Annex I (normative) - Linearity
Annex J (normative) - Receive level, conversational gain,
                        and frequency response metrics
Annex K (normative) - Linearity
Annex L (normative) - Distortion
Annex M (normative) - Send ambient noise reduction and its
                        effects on speech quality
Annex N (normative) - Delay
Annex O (normative) - Sidetone echo
Annex P (normative) - Maximum acoustic output (long duration)
                        - alternate method
Annex Q (normative) - Temporally weighted terminal coupling
                        loss measurement
Annex R (normative) - Temporally weighted terminal coupling
                        loss algorithm
Annex S (normative) - Simulated speech generator
Annex T (normative) - TDS sweep with P.50 noise burst
Annex U (normative) - Conditioning for carbon transmitters
Annex V (normative) - Measurements on telephones with amplified
                        receivers
Annex W (informative) - Useful conversion procedures
Annex X (informative) - Perceptual evaluation of speech quality
                        (PESQ)
Annex Y (informative) - Loudness balance subjective test
                        procedures

Abstract

Presents the techniques for objective measurement of electroacoustic characteristics of analog and digital telephones, handsets and headsets. Application is in the frequency range from 100 Hz to 8500 Hz.