Which of the following is the most reasonable target value for aided speech intelligibility index (SII) in hearing aid fittings?

CASE 1Patient Profile: A 68-year-old individual with bilateral sensorineural hearing loss. No contraindications to ear mold.General Medical History: Generally healthy, managed hypertension.Otologic History: No history of ear infections or surgeries. Gradual onset of hearing loss over the past 10 years.Audiometric Profile: Bilateral sensorineural hearing loss with a pure-tone average (PTA) of 60 dB HL in both ears. Speech discrimination score (WORD REC IN QUIET) is 50%, bilaterally.Family and Social Context: Retired, lives with a spouse. Enjoys social gatherings with family and friends.Physical Functioning and Manual Dexterity: Good physical health and manual dexterity. Able to handle and maintain hearing aids.What hearing aid style would you recommend?

CASE 1 Patient Profile: A 68-year-old individual with bilateral sensorineural hearing loss. No contraindications to ear mold. General Medical History: Generally healthy, managed hypertension and diabetes. Otologic History: No history of ear infections or surgeries. Gradual onset of hearing loss over the past 10 years. Audiometric Profile: Bilateral FLAT sensorineural hearing loss with a pure-tone average (PTA) of 60 dB HL in both ears. Speech discrimination score (WORD REC IN QUIET) is 50%, bilaterally. Family and Social Context: Retired, lives with a spouse. Enjoys social gatherings with family and friends. Physical Functioning and Manual Dexterity: Good physical health and manual dexterity. Able to handle and maintain hearing aids. What receiver strength would you recommend? Fitting ranges all.JPG

Which of the following is the most reasonable target value for root mean squared error (RMSE) in hearing aid fittings?

Match the creator to their respective target fitting rules.

Here is an input/output graph for a given hearing aid and compression settings. io graph.jpg At what OUTPUT level is the threshold kneepoint (TK)?

Frequency lowering techniquesWhich of the following takes the high-frequency range of an input signal and shortens the bandwidth into a smaller target range but does not mix in with the existing low frequency information?

How close to the eardrum should the probe microphone sit for good quality probe-microphone measures?

CASE 2Patient Profile: A 45-year-old with unilateral severe hearing loss in one ear and normal hearing in the other. Experiences difficulty localizing sounds.General Medical History: Excellent health, no chronic illnesses.Otologic History: No history of ear surgeries or infections. Unilateral hearing loss since birth.Audiometric Profile: Severe hearing loss in the left ear (PTA 80 dB HL) and normal hearing in the right ear (PTA 10 dB HL). WORD REC IN QUIET is 12% for the left ear, and 100% for the right ear.Family and Social Context: Married with children. Active in community events and meetings.Physical Functioning and Manual Dexterity: No physical limitations. Good manual dexterity.What side(s) would you aid?

CASE 5Patient Profile: A 15-year-old with bilateral congenital aural atresia, preventing sound transmission through the ear canals. Normal cochlear function in both ears (purely conductive hearing loss).General Medical History: Good overall health.Otologic History: Bilateral congenital aural atresia. No previous surgical interventions for reconstruction or hearing.Audiometric Profile: Bilateral congenital aural atresia, preventing sound transmission through the ear canals. Normal cochlear function in both ears. Moderate conductive hearing loss bilaterally (AC PTA is 57 for the right ear and 53 for the left ear; BC PTA is 10 dB for the right ear and 15dB for the left ear).Family and Social Context: Parents are actively involved in care. Attends special education school.Physical Functioning and Manual Dexterity: Child with normal physical health and manual dexterity.What hearing aid style would you recommend?