Exam Preview

Speech Acoustics and Frequency Lowering

---

1.  Why should we care about the potential outcomes associated with frequency lowering? They affect the choices we make when selecting and programming the hearing aid. They affect the method we use to verify the fit. They affect how we counsel the patient about proper expectations. All of the above

2.  Frequency lowering is expected to benefit consonants the most when they are co-articulated with which vowel? /a/ /i/ /o/ /u/

3.  Which fact(s) limit(s) the net benefit from frequency lowering? Information in the high-frequencies may be truncated or distorted in the process of lowering. Information in the low frequencies may be displaced or masked by newly introduced information from the high frequencies. Re-coded high-frequency information is placed along the cochlea where outer and/or inner hair cell functioning may still be abnormal. All of the above

4.  Which pair of consonants has been shown to benefit the MOST with frequency lowering? /s/, /sh/ /k/, /t/ /s/, /z/ /s/, /t/

5.  Which vowel has been shown to be most negatively affected by frequency lowering? /a/ /i/ /o/ /u/