Ear Level, Fm Only - Interacoustics Affinity 2.0 Additional Information

Example 2
750 Hz
1000 Hz
2000 Hz
Average
*Average dif ference is less than 2 dB, theref ore transparency is achieved
2.7.2

Ear level, FM only

Ear Level FM systems are intended to be used by patients who have normal or near-normal hearing and
help increase the signal to noise ratio. They can be used, f or example, in classroom settings f or a child
having learning dif f iculties or auditory processing disorders (APD). Typical use will include an ear-level FM
receiver, coupled to a thin tube, in an open ear conf iguration. The steps below guide clinicians on how to
perf orm straightf orward real-ear verif ication of the ear level FM system, to verif y the maximum output and to
adjust the volume control to recommended setting on the FM receiver.
1. Prepare the patient f or normal real ear:
o Position him in f ront of the loudspeaker
o Place the probe tube in the ears
o Place the ear level FM system on the ear
2. From Noah or f rom the AUD screen, enter the audiogram (it will be within the range of normal/near
normal) and click on the REM tab
D-0004576-Q – 2022/05
Affinity/Equinox2.0 – Additional Information
HA + Receiver
75
74
72
FM Mic + HA
74
75
71
Difference
1
1
1
1
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