Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"audibility"”.
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Neural Correlates of Auditory -Visual Speech Perception in Noise
… waveform response as a function of changes in audibility (manipulation of the acoustic environment by testing a range of signal-to-noise ratios) and content of optic cue (manipulation of the types of cues available, e.g., speech, nonspeech-static, or non-speech-dynamic cues). Experiment 1 …
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Neural Encoding of Complex Signals in the Healthy and Impaired Auditory Systems
… (NH) subjects, when stimuli are unadjusted for audibility. The question then emerges if these degraded neural representations of envelope and TFS persist when stimuli are presented at equal audibility. Comparisons of the brainstem FFR at equal audibility levels between normal hearing and hearing …
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Consonant Loss Profile and Perceptual Confusions for Hearing-Impaired Listeners in Noise
… gain conditions between HI and NH indicated that audibility was not a major factor for poorer performance on the F CV set. The CP analysis showed that for most of target syllables the major confusions were evoked by the same competitors for both gain and no-gain conditions, but for others …
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Models of Human Phone Transcription in Noise Based on Intelligibility Predictors
… specific models with their own parameters, (3) audibility of speech does not explain all variation but explains a great deal of it, and (4) phonetic importance is not spread uniformly over the time and frequency. We speculate that humans may use different representations of speech, depending on …
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A high accuracy nonlinear model of the human cochlea
… and simultaneous masking. Furthermore, an audibility prediction system based on the model is developed and compared to the state-of-the-art articulation index gram. After a brief investigation, the novel system (termed the cochlear voltage difference gram) seems to predict the audibility of …
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On the effects of masking of perceptual cues in hearing-impaired ears
… consonants. It has been uniformly assumed that audibility is the main factor in speech perception, for both normal-hearing (NH) and HI listeners (Zurek and Delhorne, 1987). Based on an entropy measure, Trevino and Allen (2013) have shown that at most comfortable level (MCL) audibility is not the …
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Speech Reception Threshold Materials for Taiwan Mandarin
… words which were relatively homogeneous in audibility and slope were developed. The mean slopes for the 28 selected male and female trisyllabic Taiwan Madarin words were 11.3 %/dB (male talker) and 11.7 %/dB (female talker), respectively. Digital recordings of the psychometrically equivalent …
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Development of Tongan Materials for Determining Speech Recognition Thresholds
… that were relatively homogenous in relation to audibility and psychometric function slope. The intensity of these 28 words was adjusted to equate 50% threshold performance for each word with the mean PTA (5.92 dB HL) for the twenty normally hearing participants. These materials were digitally …
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Psychometrically Equivalent Bisyllabic Words for Speech Reception Threshold Testing in Arabic
… which was homogenous with respect to slope and audibility. The words are contained on tracks 2 and 3 of the Brigham Young University Arabic Speech Audiometry Materials (Disc 1.0) CD.
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Speech Perception in “Bubble” Noise: Korean Fricatives and Affricates By Native and Non-native Korean Listeners
… of important cues in each utterance, i.e., where audibility of the location is significantly correlated with correct identification of the utterance in noise. Results show that non-native Korean listeners can discriminate between Korean fricatives and affricates in noise after training with the …
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Fiction and Fictionalism
… puzzle within the philosophy of music: the audibility problem. Part Two comprises discussions of three distinct fictionalist theories: mathematical fictionalism, modal fictionalism and moral fictionalism. I will argue that these three theories are all objectionable on the very same grounds, and …
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Psychometrically Equivalent Digital Recordings for Speech Audiometry Testing in Mandarin Chinese: Standard Mandarin Dialect
… All lists were homogeneous with respect to audibility and psychometric function slope. Digital recordings of the psychometrically equivalent word lists are included on a compact disc.
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Measurement and analysis of breath sounds
… of cardiorespiratory sounds and wheeze audibility tests have been developed. Simulated breath sounds can be used as a training tool, as well as an evaluation method. These simulations have shown that, under certain circumstance, there are wheezes but they are inaudible. It is postulated …
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Role of Driver Hearing in Commercial Motor Vehicle Operation: An Evaluation of the FHWA Hearing Requirement
… of live and CB speech, as well as the audibility of most internal and external warning signals. The forced whisper experiment demonstrated that there is significant variability in the sound pressure level of whispers produced using this technique (in the words, word types, and trials …
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Strings of Sound and Sense: Towards a Feminine Sonic
… engagement with the sensoriality, audibility, and inaudibility of sound and its fluctuation. How we listen has potential to affect our relations with each other: how we hear these relations informs our understanding of the world. The question driving this research is how listening …
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Perceptual cues of consonant sounds and impact of sensorineural hearing loss on speech perception
… loss can be well predicted by the loss of audibility, subjects with other types of hearing loss often show patterns of difficult sounds that can hardly be explained by the shift of hearing threshold. A subject with almost identical binaural hearing loss is nearly deaf to /ka/ in one ear due …
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Consonant cluster phonotactics : a perceptual approach
… and epenthesis processes; 3) the role of the audibility of stop release bursts; 4) the existence of cumulative edge effects, whereby more and more phonotactic combinations are licensed at the edges of prosodic domains as we go up the prosodic hierarchy. These generalizations are elucidated in …
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Effects of NAL-R amplification on consonant speech perception in hearing-impaired listeners
… on these results, a more rigorous definition of audibility based on entropy and the Miller and Nicely (1955) confusion groups is proposed. Furthermore, the effectiveness of NAL–R for CV perception was investigated by comparing the confusion matrices of the two experiments. In general, the error …
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Spaces of the Ear: Literature, Media, and the Science of Sound, 1870-1930
… of a uniquely embodied listener and the newfound audibility of the body, and overlapped with contemporaneous scientific knowledge surrounding the physiology of the ear and the role of the body in the perception of sound. Chapter 1 focuses on the role of non-literary discourse on urban noise and …
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Factors affecting speech recognition in noise and hearing loss in adults with a wide variety of auditory capabilities
… to individual hearing impairments to ensure audibility. Most tests involved<br/>measurements centred on a low frequency (500 Hz), high frequency (3000 Hz) and broadband.<br/>The second study included some refinements based on analysis of the first study. Analyses<br/>included multiple …