National Repository of Grey Literature 24 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
The influence of the diameter and depth of the hole in the whistle on the timbre and directionality
Borovičková, Barbora ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
This bachelor’s thesis examines the influence of the diameter and depth of the holes in the recorder on the timbre and directionality of the resulting tone. For measurements and subsequent data analysis, nine flute body prototypes were made from three different materials and with three different wall thicknesses. During the measurement, holes with different diameters were drilled into the prototypes. Thanks to this procedure, it was possible to separate desirable influences from undesirable ones. The measured data were analyzed in the Matlab environment.
The Analysis of mutes on trombone and trumpet timbre
Košař, Vojtěch ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
This work deals with the sound mute issues, specifically how they affect the timbre of a trombone and a trumpet, their sound spectrum, levels of individual harmonic tones, the presence of formants and the directional characteristics of individual tones played in various dynamics. A part of this work is also focused on the theoretical description of a trombone and a trumpet, including their brief history, their classification, the parts they are consisting of and the timbre. The theoretical part is further dealing with the description of mathematic functions like FFT or LPC analysis, which have been implemented in the MATLAB environment when creating the graphic dependents for this theme.
The Spectrum analysis of different types of saxophones
Greiplová, Barbora ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
The bachelor thesis deals with the sound of three types of Yamaha saxophones, specifically soprano, alto and tenor saxophone. Lists the basic parameters of the instrument, how it forms the tone and how it is typical. It focuses on characteristics in its tone using spectral analysis, LPC analysis and directional characteristics. The work focuses on the common properties of saxophones as instruments, it also looks for differences between selected types of saxophones and between individual tones. The results are compared in graphs, tables and verbal evaluation.
Analysis of the spectrum of recorders from different materials and with other different parameters
Kaplan, Václav ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
This thesis research focuses on the phenomena and the properties that affect the very origin of the tone in the recorder and the subsequent character of the frequency spectrum. These include the dimensions, material and mechanical properties. There are several soprano and alto recorders measured in this thesis. The research is enriched by working with hand-made cylindrical samples and a brief comparison of three exotic flutes. The conclusion is a comparison table and the final summary.
Experimental Electro-Mechanical Musical Instrument Controlled by the Frequency of Light Intensity Changes
Benko, Karel ; Mojdl, Edgar (referee) ; Dlouhý, Dan (advisor)
The purpose of the bachelor thesis is to design and implement an experimental mechanical-electrical musical instrument, specifically on the basis of the optoelectric principle. The instrument will have a wide range of controls with the possibility micro-interval tuning and playing. The resulting sound can be adjusted, for example, with the integrated envelope generator.
The analysis of the clarinet spectrum from different manufacturers
Suchánek, Tomáš ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
Bachelor’s thesis focuses on spectral analysis of six B clarinets made by manufacturers Buffet Crampon, RZ Woodwind Manufacturing and Yamaha. Instruments were tested by two professional musicians with different timbral preferences and the resulting spectrum is then applied to how psychoacoustic measurements define timbre perception. Furthermore, the impact of different dynamics or reeds is discussed and significant part of analysis also describes directivity patterns of individual higher harmonics or characteristic formant areas.
Experimental Electro-Mechanical Musical Instrument - Electroacoustic Violin with Frets
Pieczonka, Jan ; Mojdl, Edgar (referee) ; Dlouhý, Dan (advisor)
.The main aim of this bachelor thesis is a design and a construct of an experimental electromechanical instrument. The instrument is based on classical violin. The thesis includes a design and a construction of violin pickups, an experimantal excitator, an alterations of the instrument and its assessment. The instrument will use two types of pickups, corrective preamplifire and frets, for experimental tuning.
Experimental Electro-Mechanical Musical String Instrument
Svěrák, Jan ; Mojdl, Edgar (referee) ; Dlouhý, Dan (advisor)
The goal of this thesis is to design and construct a prototype of an experimental electromechanical musical instrument of unusual construction and a plethora of achievable timbres. The design is based on a combination of fundamental attributes of two already existing instruments, namely the hurdy-gurdy and the electric guitar. The first chapter of this thesis analyzes the theoretical background of said problematics. The second chapter describes the construction and function of individual components, including the reasoning behind the chosen principles and materials. The third chapter describes the changes from the original design and the process of building the instrument. The fourth chapter evaluates the instrument in terms of functionality and its properties. The fifth chapter proposes changes in design which could eliminate or mitigate the problems revealed by the prototype.
The innovation of marimba timbre using new bars, resonators, and adding virtual registers
Nop, Patrik ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
This diploma thesis focuses on suitable innovation of musical instrument marimba. The chosen problem has been verified by three optoins: new bars, new resonators, virtual registers. The work provides an analysis of the whole issue with verification of some samples and their inclusion or exclusion for further use in the research.
The Analysis of tone spectra performed by different bowing techniques
Petráš, Filip ; Mojdl, Edgar (referee) ; Jirásek, Ondřej (advisor)
String instruments, bowing technique, timbre, spectral analysis, envelope ADSR, directional characteristics

National Repository of Grey Literature : 24 records found   1 - 10nextend  jump to record:
Interested in being notified about new results for this query?
Subscribe to the RSS feed.