Recommendation ITU-T P.1100 describes performance requirements and test methods for narrowband hands-free communication in vehicles.This Recommendation covers.
ITU-T P.1100-2015 Referenced Document
ITU-T G.100.1-2001 The use of the decibel and of relative levels in speechband telecommunications - SERIES G: TRANSMISSION SYSTEMS AND MEDIA@ DIGITAL SYSTEMS AND NETWORKS International telephone connections and circuits - General definitions (Study Group 12)
ITU-T G.111-1993 Loudness Ratings (LRs) in an International Connection (Study Group XII) 21 pp
ITU-T G.122 Influence of National Systems on Stability and Talker Echo in International Connections Study Group 12
ITU-T G.711 PULSE CODE MODULATION (PCM) OF VOICE FREQUENCIES
ITU-T P.340 Transmission Characteristics and Speech Quality Parameters of Hands-Free Terminals Series P: Telephone Transmission Quality Telephone Installations Local Line Networks Subscribers' Lines and Sets Study Group 12; Covering Note: March 31 2004
ITU-T P.380 Electro-acoustic measurements on headsets Study Group 12*， 2024-04-20 Update
ITU-T P.48 Specification for an Intermediate Reference System - Telephone Transmission Quality (Study Group XII) 6 pp
ITU-T P.501 Test signals for use in telephonometry (Study Group 12)*， 2017-03-01 Update
ITU-T P.502 Objective Test Methods for Speech Communication Systems Using Complex Test Signals Series P: Telephone Transmission Quality Telephone Installations Local Line Networks Objective Measuring Apparatus Study Group 12
ITU-T P.56 (Pre-Published) Objective measurement of active speech level
ITU-T P.58 Head and torso simulator for telephonometry*， 2021-05-31 Update
ITU-T P.581-2000 Use of Head and Torso Simulator (HATS) for Hands-Free Terminal Testing Series P: Telephone Transmission Quality, Telephone Installations, Local Line Networks Objective Measuring Apparatus Study Group 12
ITU-T P.64 Determination of sensitivity/frequency characteristics of local telephone systems (Study Group 12)*， 2024-04-20 Update
ITU-T P.79 Calculation of loudness ratings for telephone sets (Study Group 12)*， 2024-04-20 Update
ITU-T P.800 Methods for Subjective Determination of Transmission Quality - Series P: Telephone Transmission Quality; Methods for Objective and Subjective Assessment of Quality Study Group 12; 38 pp [Superseded: ITU-T P.80 ITU-T P.80]
ITU-T P.800.1 Mean opinion score (MOS) terminology (Study Group 12)*， 2016-02-01 Update