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Work item:
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P.57
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Subject/title:
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Artificial ears
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Status:
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Approved on 2021-06-13
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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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Rev.
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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, ETSI
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Supporting members:
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-
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Summary:
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Recommendation ITU-T P.57 specifies the electro-acoustical characteristics of artificial ears to be used for telephonometric measurements. Four devices are specified: a telephone band type for measurements on traditional telephone sets, an insert earphone type, a type faithfully reproducing the characteristics of the human ear and a type faithfully reproducing the characteristics of the human ear including an average adult human ear canal.
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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:
2021-05-13 15:24:45
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Last update:
2021-05-14 10:19:21
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