UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ITU-T P.57

Artificial ears

inactive
Buy Now
Organization: ITU-T
Publication Date: 1 April 2009
Status: inactive
Page Count: 49
scope:

This Recommendation specifies the artificial ears for telephonometric use. Three types are recommended, covering the different transducers, types, sizes and technologies.

The methods of use of the artificial ears are outside the scope of this Recommendation; however, some general rules are provided about the application force and the positioning of transducers.

Object

Three types of artificial ears are defined:

1) a telephone-band type for measurements on traditional telephone sets;

2) a type for measuring insert earphones;

3) a type which faithfully reproduces the characteristics of the median human ear.

Document History

June 1, 2021
(Pre-Published) Artificial ears
This Recommendation specifies the artificial ears for telephonometric use. Four types are recommended, covering the different transducers, types, sizes and technologies. The methods of use of the...
February 1, 2021
Artificial ears
This Recommendation specifies the artificial ears for telephonometric use. Four types are recommended, covering the different transducers, types, sizes and technologies. The methods of use of the...
December 1, 2011
Artificial ears
This Recommendation specifies the artificial ears for telephonometric use. Three types are recommended, covering the different transducers, types, sizes and technologies. The methods of use of the...
ITU-T P.57
April 1, 2009
Artificial ears
This Recommendation specifies the artificial ears for telephonometric use. Three types are recommended, covering the different transducers, types, sizes and technologies. The methods of use of the...
January 27, 2005
Artificial ears
A description is not available for this item.
July 1, 2002
Artificial ears
A description is not available for this item.
August 1, 1996
Artificial Ears - Series P: Telephone Transmission Quality Objective Measuring Apparatus
A description is not available for this item.
January 1, 1993
Artificial Ears - Telephone Transmission Quality - Objective Measuring Apparatus
A description is not available for this item.
January 1, 1993
Artificial Ears - Telephone Transmission Quality - Objective Measuring Apparatus - Corrigendum 1 (Study Group XII) 16 pp
A description is not available for this item.

References

Advertisement