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Study of acoustic properties of enclosed rooms
Kovařík, Filip ; Fišarová, Zuzana (referee) ; Šťastník, Stanislav (advisor)
The bachelor thesis deals with the acoustics of enclosed spaces, its behaviour and impact on the clarity and quality of presentation. Here is written transmission of acoustic energy, behaviour of spatial and building acoustics, which builds their diagnostic methods. The work also includes legislative requirements stipulated by the acoustics of enclosed spaces and the achievement of these requirements using different types of acoustic absorption capacity of materials, applications, and more specifically their basic properties. In the experimental part, the measurement of reverberation time in a selected room and the adaptation of acoustic properties so that attained legislative requirements
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Analysis of Speech Masked by Noise in Public Transport Vehicles
Kobližka, Martin ; Zvončák, Vojtěch (referee) ; Jirásek, Ondřej (advisor)
This work deals with the problems of noise and speech masking in public transport . The theoretical is focused on the perception of sound in terms of loudness and frequency. The practical part includes recording noise inside public transport vehicles and determining the loudness and masking thresholds by the Zwicker method using Matlab. Furthermore, speech recording in different dynamics, listening tests and their evaluation in terms of speech intelligibility.
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Factors Influencing Communication with Hearing Impairment in Old Age
Černý, Libor ; Dlouhá, Olga (advisor) ; Hahn, Aleš (referee) ; Kostřica, Rom (referee)
The main goal of this doctoral thesis was to measure differences in speech intelligibility between older and younger hearing-impaired people and to establish the factors influencing the effectiveness of the use of hearing aids in the elderly. We focused on three related areas: 1/ To measure how the magnitude of difference of hearing and speech intelligibility in silence differs between younger and older populations, with a similar degree of hearing loss, in terms of word audiometry. 2/ To establish how speech intelligibility in competitive noise differs between younger and older populations with a similar degree of auditory defect, in terms of the Czech Test of Sentence Intelligibility in Babble Noise. 3/ To establish which factors affect the effectiveness of hearing aids for seniors, the motivation for the acquisition and regular use of hearing aids, and whether these factors correlate with age or lifestyle. Methodology 1/ A group of 143 hearing aid users was divided into young (N = 60, mean age 15,9 y.) and seniors (N = 83, mean age 83,6 y.). For these two age groups we compared the differences between SRT values (understanding in word audiometry in silence, in the free field) and PTA values (hearing threshold in pure tone audiometry). 2/ A group of 423 persons, examined using the Test of...
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Analysis of Speech Masked by Noise in Public Transport Vehicles
Kobližka, Martin ; Zvončák, Vojtěch (referee) ; Jirásek, Ondřej (advisor)
This work deals with the problems of noise and speech masking in public transport . The theoretical is focused on the perception of sound in terms of loudness and frequency. The practical part includes recording noise inside public transport vehicles and determining the loudness and masking thresholds by the Zwicker method using Matlab. Furthermore, speech recording in different dynamics, listening tests and their evaluation in terms of speech intelligibility.
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Factors Influencing Communication with Hearing Impairment in Old Age
Černý, Libor ; Dlouhá, Olga (advisor) ; Hahn, Aleš (referee) ; Kostřica, Rom (referee)
The main goal of this doctoral thesis was to measure differences in speech intelligibility between older and younger hearing-impaired people and to establish the factors influencing the effectiveness of the use of hearing aids in the elderly. We focused on three related areas: 1/ To measure how the magnitude of difference of hearing and speech intelligibility in silence differs between younger and older populations, with a similar degree of hearing loss, in terms of word audiometry. 2/ To establish how speech intelligibility in competitive noise differs between younger and older populations with a similar degree of auditory defect, in terms of the Czech Test of Sentence Intelligibility in Babble Noise. 3/ To establish which factors affect the effectiveness of hearing aids for seniors, the motivation for the acquisition and regular use of hearing aids, and whether these factors correlate with age or lifestyle. Methodology 1/ A group of 143 hearing aid users was divided into young (N = 60, mean age 15,9 y.) and seniors (N = 83, mean age 83,6 y.). For these two age groups we compared the differences between SRT values (understanding in word audiometry in silence, in the free field) and PTA values (hearing threshold in pure tone audiometry). 2/ A group of 423 persons, examined using the Test of...
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Study of acoustic properties of enclosed rooms
Kovařík, Filip ; Fišarová, Zuzana (referee) ; Šťastník, Stanislav (advisor)
The bachelor thesis deals with the acoustics of enclosed spaces, its behaviour and impact on the clarity and quality of presentation. Here is written transmission of acoustic energy, behaviour of spatial and building acoustics, which builds their diagnostic methods. The work also includes legislative requirements stipulated by the acoustics of enclosed spaces and the achievement of these requirements using different types of acoustic absorption capacity of materials, applications, and more specifically their basic properties. In the experimental part, the measurement of reverberation time in a selected room and the adaptation of acoustic properties so that attained legislative requirements
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The comparison of acoustic properties of interiors with focusing on speech intelligibility
KOZLOVÁ, Miroslava
This bachelor thesis is devoted to examining the acoustic properties of different rooms. Subsequent evaluation of these properties is carried out according to the intended use of the space. This thesis is divided into two parts. The first is the theoretical part, in which the physical nature of sound and properties and methods of the measurements of acoustic quantities intended for its description are explained. The second part is the practical part, which presents the results of the acoustic measurements in selected interiors. Acoustic measurements are focused on reverberation time and speech intelligibility.
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