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An Update on Modified Verification Approaches for Frequency Lowering Devices

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1.  What does the term frequency lowering refer to? An umbrella term that includes many different types of frequency lowering signal processing. Hearing aid signal processing designed to improve audibility of sounds for listeners with high-frequency hearing loss. All of the above None of the above

2.  Using additional verification measures when assessing FL fittings can help: Assist fitters in determining the strength of lowering needed for each individual listener. Bypass the use of a validated prescriptive formula in the fitting process. Provide lowering within the listener's maximum audible output frequency. A and C

3.  Some factors to consider when addressing frequency lowering candidacy include: The configuration and degree of the listener's hearing loss. Does the listener's conventional fitting provide amplification across a broad range of frequencies? Is the listener having difficulty hearing high-frequency phonemes? All of the above

4.  The FL protocol recommends using which of the following stimuli? Live voice productions of /s/ and /ʃ/. Filtered speech signals presenting bands of high-frequency energy. Tonal signals such as those used when evaluating the instrument's maximum power output. Pre-recorded, calibrated speech signals including /s/ and /ʃ/.

5.  Live voice productions of speech sounds can provide accurate information related to: The bandwidth associated with naturally produced speech sounds. The sensation level of an aided /s/ for a repeatable, known presentation level. The frequency location of filtered speech bands. None of the above

6.  The following statement(s) is/are true about the calibrated, pre-recorded /s/ and /ʃ/ signals discussed in this article: They represent an average male production of /s/ and /ʃ/. They have been developed based on phonemes from the "Carrot" speech passage. They can be presented at a calibrated level. B and C

7.  The FL protocol includes which of the following steps? Verifying the shape and gain of the hearing aid with FL tuned off. Determining candidacy for FL through the use of electroacoustic measures. Enabling FL and fine-tuning to determine an appropriate setting. All of the above

8.  In response to feedback related to "slushy" sound quality after enabling FL, the fitter can try the following: Evaluate the spectral separation of /s/ and /ʃ/ and perform a listening check across settings of different strengths. Increase the strength of the FL setting. Adjust the gain settings for loud speech. None of the above

9.  The fine-tuning steps outlined in the FL protocol will help determine: The strongest possible FL setting that improves the sensation level of an aided /s/. The weakest possible FL setting that improves the sensation level of an aided /s/. Whether frequency compression or frequency transposition would be more beneficial All of the above

10.  When determining the MAOF range for a given fitting, the following information is needed: Hearing threshold information and real-ear-to-coupler difference values. A measurement of the long-term average speech spectrum for a standard speech passage. A display of peak and valley measurements associated with the LTASS. All of the above