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Work item:
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P Suppl.31
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Subject/title:
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Subjective quality evaluation of audiovisual communication in videotelephony services
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Status:
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Agreed on 2025-01-23
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Approval process:
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Agreement
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Type of work item:
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Supplement
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Version:
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New
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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-
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Supporting members:
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-
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Summary:
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This supplement describes subjective methods to evaluate the quality experienced by end-user during audio-visual communication using videotelephony services. It includes both non-interactive subjective evaluation methods for one-way communication, and interactive subjective evaluation methods for two-way communication. The focus is on audio quality, video quality, audiovisual quality, interaction delay experience, media synchronization experience and overall videotelephony quality perceived by end-users.
The subjective evaluation methods described in this supplement were applied to construct the subjective test database required for the training and validation of the Quality of Experience (QoE)/Quality of Service (QoS) monitor model for videotelephony services recommended in [ITU-T P.940]. These subjective evaluation methods can also be used for purposes including, but not limited to, subjective quality evaluation of videotelephony services, comparison of quality on different devices or in different environment, comparison of quality between different videotelephony services.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2025-03-25 13:38:58
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Last update:
2025-04-03 10:59:58
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