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IEEE 661 : 1979

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

METHOD FOR DETERMINING OBJECTIVE LOUDNESS RATINGS OF TELEPHONE CONNECTIONS
Withdrawn date

17-10-2023

Published date

01-01-1979

1. Introduction
2. Scope and Purpose
3. Definitions
4. References
5. Instrumental Method
   5.1 General
   5.2 Test Equipment
   5.3 Measuring System
   5.4 Calibration
   5.5 Test Procedure
6. Computational Method
Annex A Loudness Rating Method (Informative)
Annex B Weighted Acoustic Source Signal (Informative)
Annex C Weighted Electrical Source Signal (Informative)

Describes a practical and reproducible method of determining the loudness ratings of telephone connections.

DocumentType
Standard
PublisherName
Institute of Electrical & Electronics Engineers
Status
Withdrawn

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