Reliability and Validity of Judgments of Sound Quality in Elderly Hearing Aid Wearers

Narendran, M; Humes, Larry E.

doi:10.1097/01.aud.0000051745.69182.14

Cited by 19 publications

(8 citation statements)

References 10 publications

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“…For example, Gabrielsson et al (1988) reported that reliability of sound quality ratings using several different scales (e.g., overall impression, clarity, loudness, fullness) were lower in listeners with hearing loss than in listeners with normal hearing. Narendran and Humes (2003) reported that the elderly listeners with hearing loss in their study showed even less reliability in quality ratings compared with the hearing-impaired listeners in the study by Gabrielsson et al (1988). Finally, the listeners with hearing loss in Tan and Moore (2008) showed less reliability in ratings of sound quality for sounds subjected to nonlinear distortion than did listeners with normal hearing.…”

Section: Discussion and Summarymentioning

confidence: 82%

Effects of Noise, Nonlinear Processing, and Linear Filtering on Perceived Speech Quality

2010

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The data reported here provide a comprehensive dataset of speech quality ratings for simulated hearing aid processing conditions. The results indicate that quality ratings by listeners with hearing loss are significantly lower than quality ratings by listeners with normal hearing. In addition, quality ratings by listeners with hearing loss are impacted by signal processing at least as much as, and often more than, the quality ratings by listeners with normal hearing. Finally, quality ratings for speech processed with a simulated hearing aid are impacted more by noise and nonlinear signal processing than by linear filtering.

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Section: Discussion and Summarymentioning

confidence: 82%

Effects of Noise, Nonlinear Processing, and Linear Filtering on Perceived Speech Quality

2010

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“…D'Onofrio et al (2019) found that hearing-impaired listeners rated the sound quality of aided speech and music with moderate reliability between test-retest conditions. Narendran and Humes (2003) also investigated the test-retest reliability of different sound quality ratings for aided speech and music with hearing-impaired listeners and found that correlations for descriptors most similar to those used in this study (clarity, fullness, loudness, and total impression for aided speech and music) were moderate. These findings suggest that listeners experience similar sound quality when listening to novel stimuli using genre-specific frequencygain shaping to that for listening to identical stimuli for a second time.…”

Section: Generalizability Of Preferred Shapingmentioning

confidence: 80%

Perceived Sound Quality Dimensions Influencing Frequency-Gain Shaping Preferences for Hearing Aid-Amplified Speech and Music

et al. 2021

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Hearing aids are typically fitted using speech-based prescriptive formulae to make speech more intelligible. Individual preferences may vary from these prescriptions and may also vary with signal type. It is important to consider what motivates listener preferences and how those preferences can inform hearing aid processing so that assistive listening devices can best be tailored for hearing aid users. Therefore, this study explored preferred frequency-gain shaping relative to prescribed gain for speech and music samples. Preferred gain was determined for 22 listeners with mild sloping to moderately severe hearing loss relative to individually prescribed amplification while listening to samples of male speech, female speech, pop music, and classical music across low-, mid-, and high-frequency bands. Samples were amplified using a fast-acting compression hearing aid simulator. Preferences were determined using an adaptive paired comparison procedure. Listeners then rated speech and music samples processed using prescribed and preferred shaping across different sound quality descriptors. On average, low-frequency gain was significantly increased relative to the prescription for all stimuli and most substantially for pop and classical music. High-frequency gain was decreased significantly for pop music and male speech. Gain adjustments, particularly in the mid- and high-frequency bands, varied considerably between listeners. Music preferences were driven by changes in perceived fullness and sharpness, whereas speech preferences were driven by changes in perceived intelligibility and loudness. The results generally support the use of prescribed amplification to optimize speech intelligibility and alternative amplification for music listening for most listeners.

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“…As shown in experiment 1, we see significant variance in rating judgments even within a single session in a single subject. It is also likely that rating judgments may be difficult for elderly patients showing some memory or cognitive dysfunction 23,24. Given that retinal implants target diseases such as retinitis pigmentosa and macular degeneration, which primarily affect older populations, methods of calibrating the brightness of electrodes that are robust against cognitive and memory decline have a distinct advantage.…”

Section: Experiments 2: Brightness Matchingmentioning

confidence: 99%

Brightness as a Function of Current Amplitude in Human Retinal Electrical Stimulation

Greenwald

Horsager²,

Humayun

et al. 2009

Invest. Ophthalmol. Vis. Sci.

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PURPOSE With the goal of eventually restoring functional vision in patients with retinal degenerative diseases, USC/Second Sight Medical Products, Inc. chronically implanted blind human subjects with a prototype epiretinal prosthesis consisting of a 4 × 4 array of 16 stimulating electrodes. To accurately represent a visual scene, a visual prosthesis must convey luminance information across a range of brightness levels. To achieve this, the brightness of phosphenes produced by an individual electrode should scale appropriately with luminance, and the same luminance should produce equivalently bright phosphenes across the entire electrode array. The goal was to examine how apparent brightness changes as a function of stimulation intensity across electrodes. METHODS As described in previous studies, electrical stimulation of intact cells of the neural retina using this prosthetic device reliably elicits visual percepts in human subjects blinded by retinitis pigmentosa. Here, apparent brightness for a range of electrical amplitudes was measured using both subjective magnitude rating and brightness-matching procedures in chronically implanted human subjects. RESULTS It was found that apparent brightness can be described as a power function of stimulation intensity. The same model can also predict brightness matching across electrodes. CONCLUSIONS These results suggest that a relatively simple model for scaling current across electrodes may be capable of producing equivalently bright phosphenes across an entire array.

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Reliability and Validity of Judgments of Sound Quality in Elderly Hearing Aid Wearers

Cited by 19 publications

References 10 publications

Effects of Noise, Nonlinear Processing, and Linear Filtering on Perceived Speech Quality

Effects of Noise, Nonlinear Processing, and Linear Filtering on Perceived Speech Quality

Perceived Sound Quality Dimensions Influencing Frequency-Gain Shaping Preferences for Hearing Aid-Amplified Speech and Music

Brightness as a Function of Current Amplitude in Human Retinal Electrical Stimulation

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