| Oídos artificiales |
La Recomendación UIT-T P.57 especifica las características electroacústicas de los oídos artificiales utilizados en telefonometría. Se especifican tres dispositivos: un tipo en la banda telefónica para mediciones de aparatos telefónicos tradicionales, un tipo de inserción y un tipo que reproduce fielmente las características del oído humano. Este último tipo (tipo 3) se especifica de acuerdo con cuatro configuraciones. En esta revisión de la Recomendación UIT-T P.57 se modifican ligeramente los requisitos aplicables al tercer tipo de configuración (tipo 3.3 – Simulador de pabellón auricular (oreja)), especificando su construcción con un elastómero menos duro.
Asimismo, se ha modificado la descripción de la aplicabilidad de todos los acopladores, teniendo ahora en cuenta una superposición en su utilidad conforme al tipo de receptor sometido a prueba. |
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| Citation: |
https://handle.itu.int/11.1002/1000/11457 |
| Series title: |
P series: Telephone transmission quality, telephone installations, local line networks
P.50-P.59: Objective measuring apparatus |
| Approval date: |
2011-12-14 |
| Approval process: | AAP |
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Status: |
Superseded |
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Maintenance responsibility: |
ITU-T Study Group 12 |
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Further details: |
Patent statement(s)
Development history
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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P Suppl. 10 (11/1988)
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Considerations relating to transmission characteristics for analogue handset telephones
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In force
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-
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here
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here
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P Suppl. 16 (11/1988)
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Guidelines for placement of microphones and loudspeakers in telephone conference rooms and for group audio terminals (GATs)
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In force
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-
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here
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here
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P Suppl. 20 (03/1993)
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Examples of measurements of handset receive-frequency responses: dependence on earcap leakage losses
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In force
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-
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here
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here
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P Suppl. 23 (02/1998)
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ITU-T coded-speech database
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In force
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here
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here
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here
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P Suppl. 24 (10/2005)
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Parameters describing the interaction with spoken dialogue systems
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In force
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here
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here
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here
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P Suppl. 25 (01/2011)
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Parameters describing the interaction with multimodal dialogue systems
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In force
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here
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here
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here
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P Suppl. 26 (09/2017)
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Scenarios for the subjective evaluation of audio and audiovisual multiparty telemeeting quality
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In force
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here
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here
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here
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P Suppl. 28 (09/2020)
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Considerations for the development of new QoS and QoE related objective models to be embedded in Recommendations prepared by ITU-T Study Group 12
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In force
|
here
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here
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here
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| Title |
Approved on |
Download |
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Addition to Section 2.3 of the Handbook on Telephonometry
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2000
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here
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Addition to Section 3 of the Handbook on Telephonometry
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2000
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here
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Additions to the Handbook on Telephonometry
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1999
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here
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Telephonometry
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1992
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here
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