Connecting the world and beyond

Geneva Digital Week

ITU-T Recommendations

Search by number:

Others:

Advanced search

Provisional name

Equivalent number

Formal description

Study Groups tree view

Expand Study Groups tree view

Scroll up

Scroll down

ITU-T P.581 (07/2022)

عربي | 中文 | English | Español | Français | Русский

用于免提和手机终端测试的人头和躯干模拟器

ITU-T P.581建议书的修订版涉及免提（包括扬声器、扬声器和耳机）和手机终端，并包括手机和耳机终端的头部和躯干模拟器（HATS）的校准和使用条款。本建议书规范了如何使用HATS进行扬声器电话终端主观和客观评估（例如，ITU T P.340）。这一建议书还定义了测试安排、嘴部校准、双耳均衡和响度求和，以及用于主观第三方听力测试的耳机校准方法，如ITU-T P.832建议书所述。

Citation:	https://handle.itu.int/11.1002/1000/15004
Series title:	P series: Telephone transmission quality, telephone installations, local line networks P.500-P.599: Objective measuring apparatus
Approval date:	2022-07-29
Provisional name:	P.hatshft
Approval process:	AAP
Status:	In force
Maintenance responsibility:	ITU-T Study Group 12
Further details:	Patent statement(s) Development history

EditionsRelated Supplement(s)Related technical papers and reports

Ed.	ITU-T Recommendation	Status	Summary	Table of Contents	Download
4	P.581 (07/2022)	In force	here	here	here
3	P.581 (02/2014)	Superseded	here	here	here
2	P.581 (12/2009)	Superseded	here	here	here
1	P.581 (05/2000)	Superseded	here	here	here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