FONIX® FP35 Touch - Frye Electronics

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222 FONIX <strong>FP35</strong> Hearing Aid Analyzer 8. Press [F5] to save the insert earphone calibration. 9. Press [EXIT] to exit Earphone Calibration Screen. D.5 Erasing the insert earphone calibration If you want to set the calibration to be electrically flat to allow you to use the “earphone” jack for other devices, perform the following operation. 1. Press [F1] to erase the calibration. 2. Press [F5] to save this change.
Appendix D 223 Fitting Formula Tables The conversions used by the <strong>FP35</strong> to convert audiograms to target gain curves are the following. NAL-RP FiTTiNg FoRmuLA CALCuLATioN The insertion gains at each frequency are calculated according to the following formulas: Freq (Hz) Insertion Gain (dB) 250 X + .31 HTL - 17dB + S 500 X + .31 HTL - 8dB + S 750 X + .31 HTL - 3dB + S 1000 X + .31 HTL + 1dB + S 1500 X + .31 HTL + 1dB + S 2000 X + .31 HTL - 1dB + S 3000 X + .31 HTL - 2dB + S 4000 X + .31 HTL - 2dB + S 6000 X + .31 HTL - 2dB + S 8000 X + .31 HTL - 2dB + S Where you calculate X and S (Slope correction values) as follows: a. T = (HTL @ 500Hz) + (HTL @ 1000Hz) + (HTL @ 2000Hz) b. If T is less than or equal to 180dB, then X = .05 x T If T is greater than 180dB, then X = (.05 x 180dB) + (.116 x ( T - 180dB) c. If the HTL at 2000 Hz is less than 95dB, S = 0 If the HTL at 2000 Hz is greater than or equal to 95dB, then apply the following slope correction factors at each frequency based on the 2000Hz measurement: 2000Hz HTL (dB) 250 500 750 1000 1500 2k 3k 4k 6k 8k 95 4 3 1 0 -1 -2 -2 -2 -2 -2 100 6 4 2 0 -2 -3 -3 -3 -3 -3 105 8 5 2 0 -3 -5 -5 -5 -5 -5 110 11 7 3 0 -3 -6 -6 -6 -6 -6 115 13 8 4 0 -4 -8 -8 -8 -8 -8 120 15 9 4 0 -5 -9 -9 -9 -9 -9
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Chapter 5 117 Real-Ear Measurements
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Real-Ear Measurements 119 Note: If
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Real-Ear Measurements 121 5.2.4 Pla
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Real-Ear Measurements 123 The clien
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Real-Ear Measurements 125 5.3.1 Ent
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Real-Ear Measurements 127 An altern
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Real-Ear Measurements 129 5. Press
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Real-Ear Measurements 131 Choose OU
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Real-Ear Measurements 133 Follow th
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Real-Ear Measurements 135 5.3.9 Sta
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Real-Ear Measurements 137 CHANNELS
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Real-Ear Measurements 139 Figure 5.
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Real-Ear Measurements 141 4. Use th
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Real-Ear Measurements 143 5.4.4 Aut
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Real-Ear Measurements 147 5.5 The R
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Real-Ear Measurements 149 11. Repea
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Real-Ear Measurements 151 of the me
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Real-Ear Measurements 153 • When
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Real-Ear Measurements 155 When the
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Real-Ear Measurements 157 To set up
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Real-Ear Measurements 161 5.7.3.2 T
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Real-Ear Measurements 163 1. Press
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Real-Ear Measurements 169 Main Real
Page 179 and 180: Real-Ear Measurements 171 FILTER—
Page 181 and 182: Real-Ear Measurements 173 5.9.1 - M
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Page 185 and 186: Chapter 6 177 2-CC Targets The 2-cc
Page 187 and 188: Target Coupler 179 Target menu from
Page 189 and 190: Target Coupler 181 6.2.2 Viewing th
Page 191 and 192: Target Coupler 183 Figure 6.2.3A: F
Page 193 and 194: Target Coupler 185 To view the targ
Page 195 and 196: Target Coupler 187 AID TYPE—Style
Page 197 and 198: Target Coupler 189 Custom Menu Pres
Page 199 and 200: Chapter 7 191 The Audiometer Option
Page 201 and 202: The Audiometer Option 193 including
Page 203: The Audiometer Option 195 Set up th
Page 206 and 207: 198 FONIX FP35 Hearing Aid Analyzer
Page 209 and 210: Appendix A 201 Specifications Acous
Page 211: Specifications 203 Environmental Co
Page 219 and 220: Appendix C 211 Calibration The FP35
Page 221 and 222: Calibration 213 1. Press [MENU] fro
Page 223 and 224: Calibration 215 Figure C-3A—Attac
Page 225 and 226: Calibration 217 To perform the micr
Page 227 and 228: Calibration 219 C.3 Calibrating the
Page 229: Calibration 221 5. If you are using
Page 233: Fitting Formula Tables 225 1/3, 1/2
Page 239 and 240: Appendix F 231 Digital Speech Techn
Page 241 and 242: Index 233 Index A Accessories 6-11
Page 243 and 244: Index 235 M Maintenance 17 Medical
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