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 “"Speech reception"”.
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Speech Reception Threshold in Noise
… was to determine the effects of noise on the speech reception threshold (SRT) of these listeners. Specifically, this study sought to determine, if indeed, noise has more of a deleterious effect on these listeners than their normal-hearing counterparts, as evidenced by a signal-to-noise ratio …
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Speech Reception Threshold Materials for Taiwan Mandarin
Speech reception threshold (SRT) tools have been developed to assist in the evaluation of hearing. This study was performed to develop, digitally record, evaluate, and equate Taiwan Mandarin trisyllabic words which can be used to measure the SRT. Eighty-nine commonly used trisyllabic words were …
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Psychometrically Equivalent Trisyllabic Words for Speech Reception Threshold Testing in Cantonese
… could then be used in the measurement of the speech reception threshold. A selection of 90 frequently utilized trisyllabic words were selected and then digitally recorded by male and female talkers of Standard Cantonese and presented to 20 subjects with normal hearing beginning at 6 dB below …
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Psychometrically Equivalent Bisyllabic Words for Speech Reception Threshold Testing in Arabic
The use of speech audiometry is essential in audiological testing. One of the most important elements of speech audiometry is speech reception threshold. To provide services for the growing population of non-English speaking people, audiologists need speech audiometry materials in a variety of …
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Articulatory feature encoding and sensorimotor training for tactually supplemented speech reception by the hearing-impaired
… builds on previous efforts to develop tactile speech-reception aids for the hearing-impaired. Whereas conventional hearing aids mainly amplify acoustic signals, tactile speech aids convert acoustic information into a form perceptible via the sense of touch. By facilitating visual speechreading …
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Noise reduction algorithms and performance metrics for improving speech reception in noise by cochlear-implant users
… design and evaluation of algorithms to improve speech reception for cochlear-implant (CI) users in adverse listening environments. We develop and assess performance metrics for use in the algorithm design process; such metrics make algorithm evaluation efficient, consistent, and subject …
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Role of F0 in speech reception in the presence of interference : simulating aspects of cochlear-implant processing
Speech is perhaps the most ecologically important acoustic stimulus to human beings, because it remains the primary means by which people interact socially. Despite many significant advances made in the development of cochlear implants, even the most successful cochlear-implant users do not hear as …
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The reliability and validity of an isiZulu speech reception Threshold test in quiet for hearing and hearing-impaired individuals in KwaZulu-Natal
Speech reception threshold testing is part of the initial audiological test battery, and should be in the first language of the individual being tested. A newly developed isiZulu Speech Reception Threshold (SRT) test in KwaZulu-Natal Province, South Africa, required further reliability and validity …
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Relationship between measures related to the cochlear active mechanism and speech reception thresholds in backgrounds with and without spectral and/or temporal fluctuations
… of the cochlear active mechanism in the reception of speech in different types of noise was explored. The perceptual effects of loudness recruitment, a consequence of loss of the active mechanism, were assessed in simulated-loss listeners using a multiband expansion algorithm that models …
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Psychometrically Equivalent Digital Recordings for Speech Audiometry Testing in Mandarin Chinese: Standard Mandarin Dialect
The development of digitally recorded speech audiometry materials in Mandarin Chinese has been limited to date. High quality materials proliferate in the English language and have been developed for other languages such as Brazilian Portuguese, Spanish, Japanese, Korean, French, Italian, Polish, …
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Sound localization and interaural time sensitivity with bilateral cochlear implants
… to provide better sound-source localization and speech reception in noise for cochlear implant (CI) users. While some improvement over the abilities of monolateral implantees has been documented, bilateral performance for CI users is far from that achieved with normal hearing. Identifying factors …
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Binaural interactions in the auditory midbrain with bilateral electric stimulation of the cochlea
… important for accurate sound localization and speech reception in noise. This thesis characterizes binaural interactions in auditory neurons using a cat model of bilateral cochlear implants. Single neuron responses in the inferior colliculus (IC), the main nucleus of the auditory midbrain, were …
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Performance Intensity Functions for Digitally Recorded Japanese Speech Audiometry Materials
… of this study was to develop digitally recorded speech audiometry materials in the Japanese language to evaluate Speech Reception Threshold (SRT) and speech discrimination. Trisyllabic words were used to evaluate the SRT and bisyllabic words were used for speech discrimination. Words were …
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Neural coding of sound envelope in reverberant environments
Speech reception depends critically on temporal modulations in the amplitude envelope of the speech signal. Reverberation encountered in everyday environments can substantially attenuate these modulations. To assess the effect of reverberation on the neural coding of amplitude envelope, we recorded …
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Can the phased array stimulation strategy be implemented using the advanced bionics cochlear implant?
… patients to determine whether it provides better speech reception than currently available systems. This thesis investigates whether the phased array strategy can be implemented using the Advanced Bionics Clarion CH or HiRes90k cochlear implant. It is shown that for realistic cochlear implant …
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The effects of hearing protection on speech discrimination in differing noise spectra
… research project was aimed at investigation of speech communication issues in industrial noise environments where workers utilize hearing protection devices (HPDs). A controlled empirical study was conducted to determine the effects of several independent variables on speech reception and …
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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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Sprachverstehen im Störlärm bei 60 und 80dB mit dem HSM-Satztest in der Computerversion bei den 30 besser hörenden Probanden einer Gruppe von 60 Normalhörenden um die 50 Jahre
Getestet wurden insgesamt 60 Personen im Alter zwischen 40 und 58 Jahren, die sich als normalhörend einstuften. Als Sprachmaterial verwendeten wir den HSM-Satztest (Hochmair,Schulz,Moser) und als Hintergrundgeräusch das sprachmodulierte Rauschen nach CCITT, beides in der Computerversion. …
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Sprachverstehen unter Störlärm bei 60dB und 80dB mit dem nach Bocca-Calearo modifizierten HSM-Satztest bei Normalhörenden um die 50 Jahre
Die Bedeutung von Störgeräuschen auf die Sprachdiskrimination ist hinreichend bekannt. Der Einfluss umweltspezifischer Störgeräusche auf die zwischenmenschliche Kommunikation manifestiert sich häufig in der Klage von Patienten in lärmerfüllter Umgebung nicht mehr ausreichend diskriminieren zu …
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Psychometrically Equivalent Cantonese Bisyllabic Word Recognition Materials Spoken by Male and Female Talkers
The purpose of this study was to create psychometrically equivalent word lists in the language of Cantonese for word recognition testing. Frequently used bisyllabic Cantonese words were recorded by a native female and male talker. The word lists were evaluated by administering the word recognition …