Frye FONIX FP40 - Body, CROS, and BI-CROS Aids; Testing Body Aids

Real-Ear Measurements 109
5.9 Body, CROS, and BI-CROS aids
When using the FP40 probe with a Body aid, CROS, or BI-CROS aid, we suggest the following set-
ups and procedures. But you certainly may experiment with different methods.
5.9.1 Testing body aids
The setup below is recommended for Body aids. Follow normal Insertion Gain measurement proce-
dures.
REFERENCE MIC
PROBE MIC
TOP VIEW
12"
SPEAKER
REFERENCE MIC
SIDE VIEW
PROBE MIC
(ON EARHOOK)
BODY AID
(F
ACING FORWARD)
SPEAKER
(HEAD HIGH)
12"
Figure 5.9.1—Real-ear setup for testing body aids