|
|
Design and Realization of Modification of Acoustic Field in Laboratory
Ješko, Petr ; Rášo, Ondřej (referee) ; Schimmel, Jiří (advisor)
The thesis deals with the problems of closed spaces. It deals with situations where it is necessary to reduce the reverberation time in certain octave bands. It provides procedures comparing conventional method of solving by calculation of the mean sound absorption coefficient of the area and the subsequent experimental addition of acoustic absorbers which occupy different areas and method that uses an acoustic simulation software for the 3D model. It also deals with a concept of Reflection Phase Grating diffuser.
|
|
|
Noise testing of motor vehicles
Kopecký, Martin ; Strecker, Zbyněk (referee) ; Mazůrek, Ivan (advisor)
The bachelor's thesis deals with noise testing applicated on motor vehicles. At first, basic issues of acoustics are mentioned. Next, types of measurement with a short description of methods are given. An attention is paid to the structure of technical regulations which are valid in the Czech Republic and EU.
|
|
|
Presence and action of negative audio signals in environment
Renza, Pavel ; Šebesta, Vladimír (referee) ; Sigmund, Milan (advisor)
The thesis deals with negative influences of audio signals in the environment and the impact of the signals on human in psychological and physiological point of view. The origins of such audio signals as well as protection from their negative effects are considered. The thesis includes an overview study of standards and basic literature. Selected audio signals are presented using a program for negative audio signal analysis.
|
|
|
Computer Audiometry Realization
Solnický, Jan ; Janoušek, Oto (referee) ; Čmiel, Vratislav (advisor)
This project describes the implementation of computer audiometry for subjective hearing tests. The paper describes the implementation of the audiometer in C + + Borland Builder. Designed audiometer consists of a standard PC with operating system Windows, a sound card and headphones. The work also includes analysis of the problems of hearing loss and its examinations, that were used in the implementation of audiometry.
|
|
|
Design of wireless microphone
Vičíková, Kristýna ; Haltof, Vladimír (referee) ; Ondra, Martin (advisor)
The topic of this bachelor‘s thesis is design of wireless handheld microphone that transmits speech during presentations. Current design in this area is very uniform. The main goal of this thesis is to create unconventional design using nontraditional material from Matério for surface of the microphone. Important aspect at this type of product is ergonomy. Design aims to create option to change position of hand.
|
|
|
Design of wireless microphone
Vičíková, Kristýna ; Haltof, Vladimír (referee) ; Ondra, Martin (advisor)
The topic of this bachelor‘s thesis is design of wireless handheld microphone that transmits speech during presentations. Current design in this area is very uniform. The main goal of this thesis is to create unconventional design using nontraditional material from Matério for surface of the microphone. Important aspect at this type of product is ergonomy. Design aims to create option to change position of hand.
|
|
|
Design and Realization of Modification of Acoustic Field in Laboratory
Ješko, Petr ; Rášo, Ondřej (referee) ; Schimmel, Jiří (advisor)
The thesis deals with the problems of closed spaces. It deals with situations where it is necessary to reduce the reverberation time in certain octave bands. It provides procedures comparing conventional method of solving by calculation of the mean sound absorption coefficient of the area and the subsequent experimental addition of acoustic absorbers which occupy different areas and method that uses an acoustic simulation software for the 3D model. It also deals with a concept of Reflection Phase Grating diffuser.
|
|
|
Presence and action of negative audio signals in environment
Renza, Pavel ; Šebesta, Vladimír (referee) ; Sigmund, Milan (advisor)
The thesis deals with negative influences of audio signals in the environment and the impact of the signals on human in psychological and physiological point of view. The origins of such audio signals as well as protection from their negative effects are considered. The thesis includes an overview study of standards and basic literature. Selected audio signals are presented using a program for negative audio signal analysis.
|
|
|
Computer Audiometry Realization
Solnický, Jan ; Janoušek, Oto (referee) ; Čmiel, Vratislav (advisor)
This project describes the implementation of computer audiometry for subjective hearing tests. The paper describes the implementation of the audiometer in C + + Borland Builder. Designed audiometer consists of a standard PC with operating system Windows, a sound card and headphones. The work also includes analysis of the problems of hearing loss and its examinations, that were used in the implementation of audiometry.
|
|
|
Noise testing of motor vehicles
Kopecký, Martin ; Strecker, Zbyněk (referee) ; Mazůrek, Ivan (advisor)
The bachelor's thesis deals with noise testing applicated on motor vehicles. At first, basic issues of acoustics are mentioned. Next, types of measurement with a short description of methods are given. An attention is paid to the structure of technical regulations which are valid in the Czech Republic and EU.
|
guest ::
