Frye FONIX 7000 - Manual (Page 62)

54
FONIX 7000 Hearing Aid Analyzer
• WEAK_LEVELED: Tolerances are the same as SEMI-LEVELED but the max-
imum output for the speaker is less than 100 dB for coupler measurements
or 80 dB for real-ear measurements. To achieve a louder signal, the speaker
needs to be moved closer to the analyzer microphone and re-leveled.
If a leveling error occurs during sound chamber leveling, check the connections
of the sound chamber and the microphone, and make sure that you are getting
noise out of your sound chamber. If those connections are good, your microphone
is probably in need of calibration or it is damaged. It is also possible that your
sound chamber speaker is damaged, but this is a much less common problem.
If you are having problems leveling the sound field speaker for real-ear measure-
ments, check the connections of the microphones, remote module, and sound
field speaker. If you have been able to successfully level the sound field speaker
in the past, the most likely problem is the reference microphone needs calibration
or is damaged, although sound field speakers have also been known to go bad.
Sound field leveling, however, is more prone to user error than sound chamber
leveling. Make sure the sound field speaker isn’t pointed at a wall or other sur-
face that may cause the sound field to bounce and interfere with the leveling
process (and measurements). The client should be 12-15 inches from the speak-
er; try moving him closer and see if that helps. For troubleshooting purposes, try
leveling the sound field speaker by holding the microphone 6 inches from the
speaker. If the sound field levels with this technique, then you probably have
a positioning problem instead of a hardware problem. (This technique should
NOT be used for leveling for actual real-ear measurements.)
Contact the factory or your local FONIX distributor if you continue to have prob-
lems with leveling.