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ITU-T P.863.2 (07/2022)

Ampliación de la Rec. UIT-T P.863 para la evaluación multidimensional de la degradación de las señales vocales telefónicas en toda la banda

En la Recomendación UIT-T P.863.2 se describe un conjunto de modelos para predecir las dimensiones perceptivas de las degradaciones relacionadas con la calidad general de la voz que oscilan desde telecomunicaciones de banda estrecha (300 a 3 400 Hz) a banda completa (20 a 20 000 Hz). Las predicciones consisten en las valoraciones de los usuarios sobre cuatro dimensiones perceptivas, obtenidas en una prueba subjetiva descrita en un anexo.
Los modelos descritos en la Recomendación UIT-T P.863.2 se basan parcialmente en parámetros internos del modelo que figura en la Recomendación UIT-T P.863. La Recomendación UIT-T P.863.2 presenta una descripción detallada de todas las partes del modelo que no figuran en la Recomendación UIT-T P.863. También se especifica en un anexo el procedimiento de pruebas de conformidad que permite al usuario validar si una implementación alternativa de los modelos es correcta.

Citation:	https://handle.itu.int/11.1002/1000/15010
Series title:	P series: Telephone transmission quality, telephone installations, local line networks P.800-P.899: Methods for objective and subjective assessment of speech and video quality
Approval date:	2022-07-29
Provisional name:	P.AMD
Approval process:	AAP
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 12
Further details:	Patent statement(s) Development history Associated test signals

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
2	P.863.2 (05/2024)	In force	here	here	here
1	P.863.2 (07/2022)	Superseded	here	here	here


ITU-T Supplement	Title	Status	Summary	Table of contents	Download
P Suppl. 10 (11/1988)	Considerations relating to transmission characteristics for analogue handset telephones	In force	-	here	here
P Suppl. 16 (11/1988)	Guidelines for placement of microphones and loudspeakers in telephone conference rooms and for group audio terminals (GATs)	In force	-	here	here
P Suppl. 20 (03/1993)	Examples of measurements of handset receive-frequency responses: dependence on earcap leakage losses	In force	-	here	here
P Suppl. 23 (02/1998)	ITU-T coded-speech database	In force	here	here	here
P Suppl. 24 (10/2005)	Parameters describing the interaction with spoken dialogue systems	In force	here	here	here
P Suppl. 25 (01/2011)	Parameters describing the interaction with multimodal dialogue systems	In force	here	here	here
P Suppl. 26 (09/2017)	Scenarios for the subjective evaluation of audio and audiovisual multiparty telemeeting quality	In force	here	here	here
P Suppl. 27 (01/2017)	Application of ITU-T P.863 and ITU-T P.863.1 for speech processed by blind bandwidth extension approaches	In force	here	here	here
P Suppl. 28 (09/2020)	Considerations for the development of new QoS and QoE related objective models to be embedded in Recommendations prepared by ITU-T Study Group 12	In force	here	here	here
P Suppl. 29 (01/2023)	ITU-T P.800 – Use cases	In force	here	here	here
P Suppl. 31 (01/2025)	Subjective quality evaluation of audiovisual communication in videotelephony services	In force	here	here	here

Title	Approved on	Download
Practical procedures for subjective testing	2011	here
Addition to Section 2.3 of the Handbook on Telephonometry	2000	here
Addition to Section 3 of the Handbook on Telephonometry	2000	here
Additions to the Handbook on Telephonometry	1999	here
Telephonometry	1992	here

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ITU-T Recommendations

ITU-T P.863.2 (07/2022)