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Pure tone audiometry
Maršálková, Leona ; Harabiš, Vratislav (referee) ; Chmelař, Milan (advisor)
The presented master’s thesis deals with the acoustics, specifically with the selected characteristics of the sound. It focuses on the anatomy of the auditory system and its function. The work describes the testing approaches for an evaluation of the auditory organ function and introduces modern methods used for the hearing tests, especially pure tone audiometry. A part of the thesis is dedicated to a concept of an audiometer for pure tone audiometry, which is presented in a detailed block diagram along with a description of its working components. Included chapters describe the partial circuits of the audiometer supplemented by the calcuations of its individual elements. The concluding part of the thesis deals with the evaluation of the device’s functionality.
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Pure tone audiometry
Maršálková, Leona ; Harabiš, Vratislav (referee) ; Chmelař, Milan (advisor)
The presented master’s thesis deals with the acoustics, specifically with the selected characteristics of the sound. It focuses on the anatomy of the auditory system and its function. The work describes the testing approaches for an evaluation of the auditory organ function and introduces modern methods used for the hearing tests, especially pure tone audiometry. A part of the thesis is dedicated to a concept of an audiometer for pure tone audiometry, which is presented in a detailed block diagram along with a description of its working components. Included chapters describe the partial circuits of the audiometer supplemented by the calcuations of its individual elements. The concluding part of the thesis deals with the evaluation of the device’s functionality.
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Relation between own voice perception and skull vibrations
Vokřál, J. ; Horáček, Jaromír ; Černý, L. ; Veselý, Jan
Human own voice is percepted differently by speaker via air and bone conduction. The main aim of previous studies was to find out transfer function between these two ways of listening. Psychoacoustics methods, which were used mostly, gave relatively high differences between different subjects. Simultaneous recording of subject voice and vibrations of skull was used in your study. Low-pass filter effects found in vibrational spectra correspond to the psychoacoustics studies. These findings could be helpful in studying of self-perception of voice colour, the investigation of signer voice, the remediation of articulation disorders.
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