Frye FONIX 7000 - Manual (Page 11)

Introduction and Setup
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with a probe microphone. Using real-ear measurements makes it possible to
individualize the fitting of a hearing aid since a coupler measurement can sel-
dom tell the operator exactly how what sound is received by the client. Many
factors affect the sound on its way to the ear drum. When measuring with a
probe microphone, you will know what is happening in the “real-ear.”
ANSI Option
The ANSI Option gives the user access to the ANSI 03, ANSI 96, ANSI 87, and
ANSI 92 test sequences. These perform measurements according to the ANSI
S3.22 2003, ANSI S3.22 1996, ANSI S3.22-1987, and ANSI S3.42-1992 stan-
dards, respectively.
This option also includes the Telewand, which is used for performing ANSI 96
telecoil measurements.
IEC Option
The IEC Option gives the user access to the IEC test sequence, which performs
measurements in accordance with the IEC 118-7, the performance part of the
IEC standard.
OES Option
The Occluded Ear Simulator (OES) Option includes the MZ-1, MZ-2, and MZ-3
couplers and corresponding correction factors meant to simulate the results of a
real-ear simulator (Zwislocki) coupler when simulating occluded ear measure-
ments in the sound chamber. The results produced with the OES Option will
not be an exact duplication of the results produced with a Zwislocki coupler.
VA CORFIG
The VA-CORFIG Option supplies a frequency response in the ANSI test
sequence that includes correction factors that make the measurement closer to a
real-ear response. These correction factors were developed by the United States
Veterans Administration.