269-1966 IEEE Proposed Method for Measuring Transmission Performance of Telephone Sets

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Organization: IEEE - Institute of Electrical and Electronics Engineers, Inc.
Publication Date: 17 May 1966
Status: inactive
Page(s): 1 - 24
ISBN (Online): 978-1-5044-0243-9
DOI: 10.1109/IEEESTD.1966.7393378

Abstracts

Regular

The purpose of this Standard is to describe a practical and reproducible method for measuring the transmission characteristics of a telephone set, and the components thereof, by means of objective measurements in a test connection. Performance characteristics obtained using this method will approximate but will not duplicate performance under actual use conditions. The method requires a suitable Artificial Mouth. It also specifies a standard Artificial Ear, standard circuits comprising direct-current power feed and connecting loops, and a standard pressure microphone. This Standard is intended for use in measuring the transmission characteristic over the frequency range most useful for speech, e.g. 150 to 5000 hertz. It is to be used for single-frequency measurements and for measurements with continuously varying frequencies such as slow sweeps and warble bands. It is suitable also for measuring the transmission performance of conventional telephone sets equipped with handsets using carbon transmitters and used with 2-wire circuits. It is not intended to be applicable to special devices such as noise-exclusion transmitters, distant-talking transmitters, insert-type receivers, or noise-exclusion receivers equipped with large ear pads. This Standard is based on a standard pressure microphone to measure the sound field produced by the Artificial Mouth and to measure the pressure developed in the Artificial Ear. Drawings and test procedures as well as other pertinent information have been included as an aid to designers in setting up the tests.performance.

Standard

The method requires a suitable Artificial Mouth. It also specifies a standard Artificial Ear, standard circuits comprising direct-current power feed and connecting loops, and a standard pressure microphone. 2.3 This Standard is intended for use in measuring the transmission characteristic over the frequency range most useful for speech, e.g. 150 to 5000 hertz. It is to be used for single-frequency measurements and for measurements with continuously varying frequencies such as slow sweeps and warble bands. 2.4 It is suitable also for measuring the transmission performance of conventional telephone sets equipped with handsets using carbon transmitters and used with 2-wire circuits. It is not intended to be applicable to special devices such as noise-exclusion transmitters, distant-talking transmitters, insert-type receivers, or noise-exclusion receivers equipped with large ear pads. 2.5 This Standard is based on a standard pressure microphone to measure the sound field produced by the Artificial Mouth and to measure the pressure developed in the Artificial Ear. 2.6 Drawings and test procedures as well as other pertinent information have been included as an aid to designers in setting up the tests.

Document History

269a-2012 - IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets--Amendment 1
May 31, 2012 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets, and headsets are presented. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless, and mobile communicati...

P269a/D5.2, Jan 2012 - IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets - Amendment 1
January 19, 2012 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobile communications devices. Mea...

P269a/D5.0, Nov 2011 - IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets - Amendment 1
November 29, 2011 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobile communications devices. Mea...

269-2010 - IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets - Redline
August 26, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobile communications devices. Mea...

269-2010 - IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
August 26, 2010 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobile communications devices. Mea...

P269R/D9.0, Sept 2009 - IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
January 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets are covered in this standard. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobil...

P269R/D9.2, Nov 2009 - IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
January 1, 2009 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets and headsets. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless and mobile communications devices. Mea...

269a-2007 - IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets Amendment 1
September 7, 2007 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

This document amends IEEE Std 269-2002. It covers the areas of: analog telephones; digital telephones; electroacoustic measurements on telephones; handsets; headsets; telephony; and voice transmission performance.

P269a_D8 - IEEE Draft Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets Amendment 1
January 1, 2006 - IEEE - Institute of Electrical and Electronics Engineers, Inc.
A description is not available for this item.
269-2002 - IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets, Handsets, and Headsets
January 1, 2003 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for making laboratory measurements of electroacoustic characteristics of analog and digital telephones, handsets, and headsets are provided in this revised standard. The methods may also be applicable to a wide variety of other communications equipment, including cordless, wireless...

ST 269:1999 - For Television — Fault Reporting in Television Systems
April 21, 1999 - Society of Motion Picture and Television Engineers

This standard describes a simple interface over which television equipment can report the occurrence of internal failures and faults in incoming signals. It is intended for use in all television equipment, from the simplest active devices to the most complex. - The interface consists of an is...

269-1992 - IEEE Standard Methods for Measuring Transmission Performance of Analog and Digital Telephone Sets
January 1, 1993 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

Practical methods for measuring the transmission characteristics of both digital and conventional two-wire analog telephone sets by means of objective measurements on a test connection are described. The test results thus obtained may be used as a means of evaluating or specifying the transmission p...

269-1983 - IEEE Standard Method for Measuring Transmission Performance of Telephone Sets
December 7, 1983 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The methods that are used to measure telephone-set transmission performance may be divided into two classes: objective methods and subjective methods. The objective methods, which are those discussed in this standard, utilize a sound source resembling the human mouth to drive the transmitter, and an...

269-1971 - IEEE Standard Method for Measuring Transmission Performance of Telephone Sets
October 1, 1971 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The methods that are used to measure telephone-set transmission performance may be divided into two classes: objective methods and subjective methods. The objective methods, which are those to be discussed in this standard, utilize a sound source resembling the human mouth to drive the transmitter, ...

269-1966 - IEEE Proposed Method for Measuring Transmission Performance of Telephone Sets
May 17, 1966 - IEEE - Institute of Electrical and Electronics Engineers, Inc.

The purpose of this Standard is to describe a practical and reproducible method for measuring the transmission characteristics of a telephone set, and the components thereof, by means of objective measurements in a test connection. Performance characteristics obtained using this method will approxim...

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