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IEC 60655:1979 ED1

Values for the difference between free-field and pressure sensitivity levels for one-inch standard condenser microphones

Jan 1, 1979
95.99 Withdrawal of Standard   Oct 9, 2006

General information

95.99     Oct 9, 2006

IEC

TC 29

International Standard

17.140.50  

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Scope

Gives the values that are to be added to the pressure sensitivity level of a microphone in order to obtain the free-field sensitivity level when a very high accuracy is not called for or when conditions for carrying out an accurate free-field calibration are not available.
The values given have been derived from measurements of the pressure and free-field sensitivity levels of a number of microphones carried out in accordance with IEC 60327 and IEC 60486 to which reference should be made concerning terminology, microphone preamplifier configurations, etc.

Life cycle

NOW

WITHDRAWN
IEC 60655:1979 ED1
95.99 Withdrawal of Standard
Oct 9, 2006

REVISED BY

PUBLISHED
IEC TS 61094-7:2006 ED1