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ITU-T P.501 (2020) Amd. 1 (06/2022)

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New Appendix II: ITU-T P.863 results on ITU-T P.501 and ITU-T P.565 speech samples
Amendment 1 provides the Recommendation ITU-T P.863 Ed. 3 (04/2020) reference scores on typical codec conditions for the reference samples in Recommendation ITU-T P.501 Annexes C and D. The ITU-T P.863 scores on the same codec conditions are also reported for the speech reference sample provided as annexes to Recommendations ITU T P.565 and ITU-T P.565.1.

Citation:	https://handle.itu.int/11.1002/1000/14998
Series title:	P series: Telephone transmission quality, telephone installations, local line networks P.500-P.599: Objective measuring apparatus
Approval date:	2022-06-17
Approval process:	Agreed
Status:	Superseded
Maintenance responsibility:	ITU-T Study Group 12
Further details:	Patent statement(s) Development history [1 related work items in progress] Associated test signals

EditionsRelated Supplement(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
8	P.501 (04/2025)	In force	here	here	here
7.1	P.501 (2020) Amd. 1 (06/2022)	Superseded	here	here	here
7	P.501 (05/2020)	Superseded	here	here	here
6.1	P.501 (2017) Amd. 1 (06/2018)	Superseded	here	here	here
6	P.501 (03/2017)	Superseded	here	here	here
5.3	P.501 (2012) Amd. 3 (06/2015)	Superseded	here	-	here
5.2	P.501 (2012) Amd. 2 (10/2014)	Superseded	here	here	here
5.1	P.501 (2012) Amd. 1 (07/2012)	Superseded	here	here	here
5	P.501 (01/2012)	Superseded	here	here	here
4	P.501 (12/2009)	Superseded	here	here	here
3	P.501 (06/2007)	Superseded	here	here	here
2.1	P.501 (2000) Amd. 1 (05/2004)	Superseded	here	here	here
2	P.501 (05/2000)	Superseded	here	here	here
2.0	P.501 (2000) Err. 1 (09/2001)	Superseded	-	-	here
1	P.501 (08/1996)	Superseded	here	here	here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. 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. 31 (01/2025)	Subjective quality evaluation of audiovisual communication in videotelephony services	In force	here	here	here

Title	Approved on	Download
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