FONIX® 8000 - Frye Electronics

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84 FONIX 8000 Hearing Aid Test System 8. Press [START] to perform the measurement. You should see CIC appear in the Curve Characteristics box in the “Cor” column of the selected curve. If you are using the FAST, COMPOSITE, or DIG SPEECH signal, press [STOP] to end the measurement once it has stabilized. Figure 3.6 shows the difference between a CIC hearing aid tested with an HA-1 coupler, and the same aid tested with a CIC coupler and correction factors. Figure 3.6— CURVE 1 uses CIC coupler + correction factors CURVE 2 uses 2-cc HA-1 coupler 3.7 Automatic Testing—Loading & Saving Groups You can use the FONIX 8000 Test System to program simple automated or semiautomated test sequences that will help you test hearing aids more efficiently. Each test sequence can contain up to 10 different response curves with your choice of source types, source levels, noise reduction, and other adjustments. In automatic mode, the analyzer will quickly run through all designated tests without pausing. In semi-automatic mode, the analyzer will automatically advance to the next curve and stop. This curve will not be measured until you start the test, but you are saved the step of using F2 to select the next curve number.
Coupler Multicurve 85 Tests are programmed into the analyzer using the Program mode. In this mode, you set the source type, source level and noise reduction for each curve. You can program any of the available 10 curve slots in the Coupler screen. This is described in Section 3.7.1. If there is a sequence of tests that you would like to perform frequently, you can save it into the FONIX 8000 Test System’s permanent memory using the SAVE GROUP function. Three groups of up to 10 curves can be saved into SAVE GROUP 1, 2, and 3, respectively. The settings for both ears are saved when SAVE GROUP is used, so it is possible to program one set of settings for the left ear and an other set for the right ear. When you want to manually load a group that has previously been saved, you use the LOAD GROUP function. It is also possible to have the FONIX 8000 Test System automatically load a saved group and put itself in Fully-Auto or Semi- Auto mode when the analyzer is first turned on or the [RESET] button is used. This is described in Section 3.7.2. When the "Factory" group is loaded, the factory default settings are loaded. 3.7.1 Setting up a test sequence The first step in running your custom automated test sequence is deciding on the source types and levels of the frequency response curves. When finished, these selections can be stored into the analyzer’s permanent memory. 1. Use [F4] to delete ALL CURVES & SETTINGS in the Coupler screen. (Press [F4]. Use [, ] to select ALL CURVES & SETTINGS. Use [] to complete the selection and close the pop-up menu.) 2. Use [F6] to select PROGRAM. This will open a pop-up window with helpful programming instructions. 3. Use [F1] to select the ear. 4. Use [F2] to select the curve number. 5. Use [F5] to select the desired source type. 6. Use [, ] to select the desired source level. 7. Press [MENU] and use the arrow keys to change other menu settings, if desired. Press [EXIT] to return to the coupler screen. 8. Save and advance to the next curve. This can be done two ways: • Press [START] if you want the analyzer to be programmed to automatically advance to the next curve and start measuring it. • Press [STOP] if you want the analyzer to be programmed to advance to the next curve, but then pause and wait for user intervention before taking the next measurement. Use this if you want to make an adjustment to the aid before taking the next measurement. A horizontal line will be drawn across the Curve Characteristics box when a pause is inserted in this fashion.
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Chapter 7 145 The ISTS Test The IST
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The ISTS Test 147 No HL 250 Hz 375
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Appendix A 199 Specifications ACOUS
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Specifications 201 Size: 11.5"W x 1
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Appendix C 209 Calibration There ar
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Calibration 211 6. Thread the probe
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Appendix G 223 Glossary of Terms AG
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Glossary of Terms for the FONIX 800
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Appendix H 229 The FONIX Keyboard A
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FONIX® 8000 - Frye Electronics

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