FONIX® FP35 Touch - Frye Electronics

78 FONIX FP35 Hearing Aid Analyzer
See Figure 3.7 for a comparison of a BTE tested with an MZ coupler as opposed
to a 2-cc coupler.
Figure 3.7—Comparison of the responses with the MZ and HA-2 couplers
3.8 Advanced Testing
This section contains information of interest to the advanced user, including
instructions for testing digital and directional aids, and procedures for reversing
and splitting the measurement microphones.
3.8.1 Testing Digital Hearing Aids
The FP35 seamlessly incorporates the testing of digital hearing aids into its normal
testing procedures.
Just follow the steps outlined in Section 3.4.1, choosing DIG SPCH in Step 7.
This digital speech signal source is an interrupted composite signal designed to
imitate the rhythms of speech. The aid will respond to the signal source as it
would respond to actual speech.
If your results are not satisfactory, and you suspect the hearing aid is not reacting
well to the Digital Speech signal, you can adjust the “on” time of the signal
by changing the SPCH BURST TIME available in the Advanced Default Settings
Menu. See Section 2.4 and Appendix F for details.