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Tube Microphone
Škoda, Adam ; Šotner, Roman (referee) ; Staněk, Miroslav (advisor)
The presented thesis deals with a tube microphone using a condenser microphone capsule for sound capturing. Moreover, two essential aspects of a tube microphone – the basis of its operation and its design – are also discussed in this thesis. In the designed microphone, there is a vacuum tube known as ECC81. This vacuum tube is used as an amplifying element of an input sound signal. This paper also includes the choice of the most suitable microphone circuit, its modification and the design of a voltage source used for feeding and heating the vacuum tube. Some appropriate simulations were applied to find out the functionality of all designed parts of the microphone system. Following step was the practical realization of all microphone parts as well as the activation and the complete parameters and characteristics measurements of realized microphone system. After the provided measurements, the microphone was compared to equivalent commercial products. Evidently, the realized microphone is qualitatively similar to other commercial products. Presented thesis also contains the list of components and PCBs.
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Electronic ukulele tuner
Staněk, Václav ; Zuth, Daniel (referee) ; Marada, Tomáš (advisor)
The subject of the bachelor’s thesis is a design and implementation of an electronic tuner for tuning a four-stringed fretted musical instrument called the ukulele. The tuner will be able to tune this instrument with a stepper motor. A part of it will be a LCD display which will serve for the visualisation of a tuning process of each string. The tuning system will be controlled with an Arduino microcontroller. This thesis is divided into three main parts. At first, the current range of electronic tuners and their functions will be assumed. The second part is aimed at selection and design of individual components for the electronic tuner. This design is implemented and its functionality is verified. The implementation is described in the final part of the thesis.
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Electronic ukulele tuner
Staněk, Václav ; Zuth, Daniel (referee) ; Marada, Tomáš (advisor)
The subject of the bachelor’s thesis is a design and implementation of an electronic tuner for tuning a four-stringed fretted musical instrument called the ukulele. The tuner will be able to tune this instrument with a stepper motor. A part of it will be a LCD display which will serve for the visualisation of a tuning process of each string. The tuning system will be controlled with an Arduino microcontroller. This thesis is divided into three main parts. At first, the current range of electronic tuners and their functions will be assumed. The second part is aimed at selection and design of individual components for the electronic tuner. This design is implemented and its functionality is verified. The implementation is described in the final part of the thesis.
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Tube Microphone
Škoda, Adam ; Šotner, Roman (referee) ; Staněk, Miroslav (advisor)
The presented thesis deals with a tube microphone using a condenser microphone capsule for sound capturing. Moreover, two essential aspects of a tube microphone – the basis of its operation and its design – are also discussed in this thesis. In the designed microphone, there is a vacuum tube known as ECC81. This vacuum tube is used as an amplifying element of an input sound signal. This paper also includes the choice of the most suitable microphone circuit, its modification and the design of a voltage source used for feeding and heating the vacuum tube. Some appropriate simulations were applied to find out the functionality of all designed parts of the microphone system. Following step was the practical realization of all microphone parts as well as the activation and the complete parameters and characteristics measurements of realized microphone system. After the provided measurements, the microphone was compared to equivalent commercial products. Evidently, the realized microphone is qualitatively similar to other commercial products. Presented thesis also contains the list of components and PCBs.
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