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Home : ITU-T Home : Study Period 1997-2000 : Study Group 12
ITU-T Study Group 12 List of Questions under Study (Study Period 1997 - 2000)
Question Title
1/12 Evolution of the programme of work
2/12 Definitions in the fields of telephonometry, speech signal processing, video signal processing, multimedia, terminal equipment and of characteristics of international connections and circuits
3/12 Radio frequency effects on telecommunication voice terminals
4/12 Updating the "Handbook on Telephonometry"
5/12 Efficiency of devices for preventing the occurrence of excessive acoustic pressure by telephone receivers
6/12 Specification and test principles for hands-free terminals, acoustic echo cancellers and speech enhancement devices
7/12 Analysis methods using complex measurement signals
8/12 General aspects in telephone electroacoustic measurement
9/12 Speech transmission characteristics and measurement methods for digital handset and handsfree terminals for both telephone band (300-3400 Hz) and wideband (50-7000 Hz)
10/12 Subjective methods for evaluating audiovisual quality in multimedia services
11/12 Objective methods for evaluating audiovisual quality in multimedia services
12/12 Cordless and mobile terminal audio performance and testing requirements
13/12 Objective measurement of speech quality under conditions of non-linear processing
14/12 Methods and tools for the subjective assessment of digital transmission systems
15/12 In-service non-intrusive assessment of voiceband channel transmission performance
16/12 Transmission planning for voiceband, data and multimedia services
17/12 Noise aspects in evolving networks
18/12 Interconnection of the public ISDN/PSTN with other networks (e.g. private networks, Internet) - Transmission quality aspects
20/12 Analysis and extension of the E-model
22/12 SQEG Work Program
23/12 Transmission performance considerations for voiceband services carried on networks that use Internet Protocol (IP)
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