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ITU-T P.502 (05/2000)

Objective test methods for speech communication systems using complex test signals

This ITU-T Recommendation describes methods and procedures for the evaluation of complex terminals, network components and transmission systems. The test methods mostly make use of test signals described in ITU-T Recommendations P.50, P.59 and P.501. For various technical implementations and conversational situations, the possible impacts on the speech quality perceived subjectively are given and the relevant measurement procedures are described.

Citation:	https://handle.itu.int/11.1002/1000/5083
Series title:	P series: Telephone transmission quality, telephone installations, local line networks P.500-P.599: Objective measuring apparatus
Approval date:	2000-05-18
Provisional name:	P.50x
Approval process:	TAP
Status:	In force
Maintenance responsibility:	ITU-T Study Group 12
Further details:	Patent statement(s)

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
1.2	P.502 (2000) Amd. 2 (09/2014)	In force	here	-	here
1.1	P.502 (2000) Amd. 1 (05/2010)	In force	here	-	here
1	P.502 (05/2000)	In force	here	here	here
1.0	P.502 (2000) Err. 1 (07/2001)	In force	-	-	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

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

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ITU-T Recommendations

ITU-T P.502 (05/2000)