Work item:
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G.107.2
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Subject/title:
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Fullband E-model
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Status:
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Approved on 2019-06-29
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Approval process:
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AAP
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Type of work item:
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Recommendation
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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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3GPP SA4 (for EVS coder), ETSI STQ
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Supporting members:
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Deutsche Telekom, NTT, Orange, Rohde & Schwarz, Opticom
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Summary:
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Recommendation ITU-T G.107.2 gives the algorithm for the fullband (FB) version of the E-model as the common ITU T transmission rating model for planning speech services that provide FB speech transmission (20-20000 Hz). This computational model can be useful to transmission planners, to help ensure that users will be satisfied with end-to-end transmission performance. The primary output of the model is a scalar rating of transmission quality. A major feature of this model is the use of transmission impairment factors that reflect the effects of different types of degradations occurring on the entire transmission path, mouth-to-ear.
This FB-E-model is an adapted version of the narrowband (NB) (300-3400 Hz) and wideband (WB) (50-7000 Hz) E-models, which are described in Recommendations ITU-T G.107 (NB) and ITU-T Rec. G.107.1 (WB). It does not replace the NB or the WB E-model. Instead, it describes a separate FB version of the model that uses, within limits, similar concepts and input parameters as the NB and WB E-models.
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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:
2018-05-31 09:31:41
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Last update:
2019-07-02 15:16:37
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