Table of Contents

1 Overview
2 Normative references
3 Definitions
4 Abbreviations, acronyms, and symbols
5 Test equipment, environment, and impairments
6 Test calibration
7 Transmission measurements
8 Voice-switching time (half-duplex) measurements
9 Acoustic echo control (full- or half-duplex) measurements
Annex A (normative) - Recommended test bed
Annex B (normative) - Detailed test methodology for TCL[T]
Annex C (normative) - TCL[T] test algorithm
Annex D (normative) - Double-talk testing
Annex E (informative) - Microphones
Annex F (normative) - Power and amplitude summations
Annex G (normative) - Preferred listening levels
Annex H (normative) - Multiple send and receive frequency
                      response test positions
Annex I (informative) - Bibliography

Abstract

Presents techniques for objective measurement of electroacoustic and voice-switching characteristics of speakerphones that connect directly or indirectly to an analog or digital telephone network.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	Institute of Electrical & Electronics Engineers
Pages
ISBN