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Showing 1 to 20 of 48 for “"speech intelligibility"”.
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Improving speech intelligibility in fluctuating background interference
The masking release (MR; i.e., better speech recognition in fluctuating compared to continuous noise backgrounds) that is evident for normal-hearing (NH) listeners is generally reduced or absent in hearing-impaired (HI) listeners. In this study, a signal-processing technique was developed to …
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Speech intelligibility: a study of Iraqi EFL learners’ accented English
Intelligibility refers to a targeted pronunciation level in English which enables non-native English speakers to produce and understand English speech uttered by both native and non-native English speakers (Abercrombie, 1949; Gimson, 2001; Cruttenden, 2014; Munro and Derwing, 2006; Levis, 2016). …
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Speech Intelligibility and Bilingualism: The Effects of Age of Acquisition
One of the central questions of second language acquisition research has been what affect age of acquisition has on the language learner's eventual proficiency in a second language. Researchers have tried to determine whether there is a strong correlation between age of onset and fluency in the …
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The Effects of Noise on Speech Intelligibility and Complex Cognitive Performance
… noise at the ear would cause an improvement in speech intelligibility, an improvement in cognitive performance, and/or a reduction in subjective mental workload. Modified Rhyme Test (MRT) stimuli were used to determine intelligibility and specific tests within the Complex Cognitive Assessment …
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The Effect of Age-related Declines in Inhibitory Control on Audiovisual Speech Intelligibility
Audiovisual: AV) speech perception is perception in which both auditory and visual information is available in order to understand a talker, compared to an auditory signal alone, during face-to-face communication. This form of communication yields significantly higher word recognition performance …
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Factors for speech intelligibility in the symmetric and anti-symmetric speech-masker conditions
… two spatially-distributed interfering talkers. Speech reception thresholds (SRTs) of young listeners (normal-hearing and hearing-impaired) were measured, with the maskers arranged in the following spatial configurations: 1) "colocated", both in-front, 2) "symmetric", at ± 60° azimuth, and 3) …
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Evaluating the Benefit of Recorded Early Reflections From a *Classroom for Speech Intelligibility
… reverberation to provide suitable conditions for speech communication (ANSI, 2002; ASHA, 1995). Another viewpoint recommends optimizing classroom acoustics to emphasize early reflections and reduce later arriving reflections (Boothroyd, 2004; Bradley, Sato, & Picard, 2003). The idea of emphasizing …
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Listening in large rooms : a neurophysiological investigations of acoustical conditions that influence speech intelligibility
Thesis (M.S.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1997.
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The effects of speech rate, message repetition, and information placement on synthesized speech intelligibility
Recent improvements in speech technology have made synthetic speech a viable I/O alternative. However, little research has focused on optimizing the various speech parameters which influence system performance. This study examined the effects of speech rate, message repetition, and the placement of …
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Modelling binaural speech intelligibility in spatial noise and reverberation for normal-hearing and hearing-impaired subjects
Sprachverständlichkeit in komplexen Situationen, das sogenannte "Cocktail-Party-Problem", wird stark von der Fähigkeit des Hörers beeinflusst, beide Ohren benutzen zu können. Diese Dissertation stellt die Entwicklung eines Modells der binauralen Sprachverständlichkeit und seine Überprüfung für …
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Gender Differences in Auditory Perception of Pure Tone Frequencies and Speech Intelligibility via Bone Conduction Transducers
… overall.</p> <p>The second experiment was a speech intelligibility study where one male and one female speakers’ voices were tested on two bone conduction locations on the head (condyle and mastoid) at four levels of pink background noise (0 dB, 83 dB, 93 dB, and 103 dB). The performance …
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Synthesized speech intelligibility and preschool age children: comparing accuracy for single word repetition with repeated exposure.
… words in typical listening environments on the intelligibility of two synthesized speech voices and human recorded speech in preschool age children. Methods: Eighteen preschool aged participants listened to and repeated single words presented in human recorded speech, DECtalk™ Paul and AT & T …
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Role of Therapeutic Devices in Enhancing Speech Intelligibility and Vocal Intensity in an Individual with Parkinson’s Disease
<p>The prevailing speech therapy techniques for treating hypokinetic dysarthria in individuals with Parkinson's disease (PD) yields improvements within the clinical setting, however, maintenance and generalization of acquired behaviors continue to be a challenge. The purpose of this study was to …
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Perceptual and acoustic features of speech in individuals with Down syndrome and their impact on speech intelligibility
Speech production involves five major components: respiration, phonation, articulation, resonance, and prosody and number of methods can be used to evaluate these aspects. Perceptual analysis methods are frequently employed; however, their reliability has been called into question. Acoustic …
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Speech intelligibility in tracked vehicles and pink noise under active noise reduction and passive attenuation communications headsets
Speech intelligibility tests using three headset systems, two passive and one with active noise reduction technology, were conducted. Nine listeners, six males and three females, responded to 180 50-word Modified Rhyme Word Lists presented under two noise conditions, two conditions of bilateral …
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Intelligibility: From Phoneme to Process
… explores the impact of phonological processes on speech intelligibility. The influence of traditional articulation theory and phonological theory on the assessment of unintelligible speech is reviewed. Traditionally based articulation assessment of speech intelligibility is discussed and the …
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Active Noise Reduction Versus Passive Designs in Communication Headsets: Speech Intelligibility and Pilot Performance Effects in an Instrument Flight Simulation
… have on the permissible exposure levels (PELs), speech intelligibility, workload, and ultimately the pilot's performance inside the cockpit. Eight instrument-rated pilot participants flew through different flight tasks of varying levels and types of workload embedded in four 3.5 hour flight …
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Comparison of Speech Audiometry Stimulus Lists on Hearing Impaired and Normal Hearing Subjects
The appropriateness and differences of different speech recognition and speech intelligibility word lists were investigated. It has been reported that the use of two-syllable spondee words that are comprised of high frequency sounds may more accurately represent the true speech recognition …
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Speech filtering for improving intelligibility in noisy transients
… output is an important factor in the overall speech intelligibility of the implant system. This thesis work improves on an existing ultra-low-power cochlear implant system by utilizing an improved noise and power efficient bandpass filter bank to implement a novel frequency-selective gain …
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