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Question 7

Methods, tools and test plans for the subjective assessment of speech, audio and audiovisual quality interactions

(Continuation of Question 7/12 - Methods, tools and test plans for the subjective assessment of speech, audio and audiovisual quality interactions)

The work of this Question will be primarily concerned with improved methods of assessing the subjective impact of time-varying impairments and with the design of laboratory testing of speech/noisy-speech/music/mixed content signals, considering the evolution of enhanced telecommunication technologies. These methods and tools will apply to narrowband, wideband, super-wideband and fullband audio telephony.

A Handbook on "Subjective testing practical procedures" was developed during the previous study period for speech and noisy-speech, music and mixed content signals, and will be maintained, adding new procedures whenever they become available and widely used in listening testing laboratories during standard exercises (e.g. for the development of a new coding algorithm within an SDO regular course of action).

As done so far, considering the need for standard subjective testing methodologies will continue to exist for the effective assessment of the transmission performance of new digital systems, like speech/music coders (telephony-band and higher quality bandwidths), or other devices and equipment designed for carrying voice and audiovisual signals, the Question should be mandated to continue to provide the necessary support to produce test/processing plans to execute appropriate subjective tests.

Input could also be provided due to the relevant work in other standards organizations, like ISO/MPEG or fora/consortia like 3GPP and 3GPP2.

The following major Recommendations, in force at the time of approval of this Question, fall under its responsibility:
P.85, P.800, P.805, P.806, P.807, P.810, P.830, P.835, P.840, P.851, P.880, P.1501, P Suppl. 24, P Suppl. 25, Handbook STP

Study items to be considered include, but are not limited to:
Tasks include, but are not limited to: An up-to-date status of work under this Question is contained in the SG12 work programme


Questions Study Groups Standardization bodies