Term
| Sufficient evidence exists to state that directional microphone technology provides benefit for most hearing aid users in background noise. T/F |
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Definition
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Term
| Sufficient evidence exists to state that digital sound processing alone significantly increases speech intelligibility in all types of background noise. T/F |
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Definition
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Term
| Spectral subtraction is more effective for steady state, environmental noises as opposed to speech noise. T/F |
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Definition
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Term
| Noise reduction strategies, such as spectral subtraction, are possible with conventional analog technology. T/F |
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Definition
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Term
| All potential hearing aid users require hearing aids that incorporate signal processing to reduce background noise. T/F |
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Definition
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Term
| A large vent can reduce the effectiveness of a directional microphone. T/F |
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Definition
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Term
| The long-term specturm and amplitude of background noise is always different from the target speaker. T/F |
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Definition
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Term
| If the sampling frequency equals the highest frequency present in the incoming signal, aliasing will not occur. T/F |
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Definition
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Term
| Microphone mismatch will decrease the effectiveness of a directional microphone. T/F |
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Definition
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Term
| One example of attempting to enhance the intelligibility of speech is syllabic compression. T/F |
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Definition
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Term
| Directional microphone technology is not available as an option with conventional analog hearing aids. T/F |
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Definition
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Term
| The automatic program selection feature available on some high end products will select the program the user deams appropriate 99% of the time. T/F |
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Definition
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Term
| Feedback reduction on advanced digital products is accomplished by reducing overall gain at all frequencies whenever feedback is detected. T/F |
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Definition
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Term
| A hearing aid incorporating noise reduction via directional microphones and advanced signal processing will likely perform better than a hearing aid with only one of these options. T/F |
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Definition
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Term
| If both devices have an omnidirectional microphone only, a CIC hearing aid will demonstrate greater directionality than a BTE hearing aid. T/F |
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Definition
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Term
| A "compensated" or "equalized" response can often be chosen in order to make up for the loss of high frequency gain that naturally occurs in the directional mode. T/F |
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Definition
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Term
| Deficits in frequency resolution will likely not impact an individual's aided ability to understand speech in noise. T/F |
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Definition
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Term
| If an individual has poor temporal resolution, he or she might demonstrate deficits in perceiving gaps in noise. T/F |
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Definition
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Term
| An individual with hearing loss and complete recruitment and an individual with normal hearing would likely rate the loudness of high intensity sounds similarly. T/F |
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Definition
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Term
| All individuals with severe sensorineural hearing loss should be fitted with hearing aids using linear processing. T/F |
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Definition
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Term
| A single-channel hearnig aid is likely appropriate for a mild to severe, sloping SNHL. T/F |
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Definition
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Term
| If hearing aids restore audibility of all speech sounds, the user will always demonstrate normal aided functioning. T/F |
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Definition
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Term
| Expansion should be used sparingly as it has a major impact on the audibity of conversational level speech. T/F |
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Definition
False.
It affects soft level sounds. |
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Term
| The potential for auditory deprivation should be considered when deciding between a monaural versus a binaural hearing aid fitting. T/F |
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Definition
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Term
| The majority of linear hearing aids use peak clipping for output limiting purposes. T/F |
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Definition
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Term
| In addition to loss of audibility, elderly individuals with hearing loss may demonstrate what four audiological characteristics? |
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Definition
| reduced temporal resolution; cognitive deficits that affect speech understanding; central auditory pathology that affects speech understanding; deficits in frequency resolution |
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Term
| A severe SNHL would likely be accompanied by what perceptual changes? (3 things) |
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Definition
| loss of sensitivity for low and mid intensity sounds; deficits in frequency resolution; decrease in dynamice range |
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Term
| A pt with high freq. cochlear dead regions would likely have what two perceptual changes? |
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Definition
| reduced freq. resolution; problems in background noise |
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