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National Repository of Grey Literature 3 records found  Search took 0.01 seconds. 
Analysis of Influence of Hardness and Alteration of Piano Hammer on Strength and Spectrum of Signal
 Mikulášková, Aneta ; Musil, Jaroslav (referee) ; Jirásek, Ondřej (advisor)
The bachelor’s thesis deals with the analysis of the time-varying spectrum of sound of the piano series 125 and M 110 by PETROF and the influence of intonation on this spectrum. It analyzes the higher harmonic components in relation to the force applied to strings and the use of variously tuned hammers. Bachelor’s thesis observes the effect of the dynamics of keystroke and intonation on the pitch of the tone in its time and frequency plane and tone’s energy loss in relation with the dynamics. Further, the thesis describes the way of measuring and recording the captured tone samples and their subsequent processing and analysis in the application created in MATLAB development environment.
Detailed record
Analysis of Influence of Hardness and Alteration of Piano Hammer on Strength and Spectrum of Signal
 Mikulášková, Aneta ; Musil, Jaroslav (referee) ; Jirásek, Ondřej (advisor)
The bachelor’s thesis deals with the analysis of the time-varying spectrum of sound of the piano series 125 and M 110 by PETROF and the influence of intonation on this spectrum. It analyzes the higher harmonic components in relation to the force applied to strings and the use of variously tuned hammers. Bachelor’s thesis observes the effect of the dynamics of keystroke and intonation on the pitch of the tone in its time and frequency plane and tone’s energy loss in relation with the dynamics. Further, the thesis describes the way of measuring and recording the captured tone samples and their subsequent processing and analysis in the application created in MATLAB development environment.
Detailed record
The market for acoustic pianos in selected countries of South America on the example of PETROF company
 Ceralová, Anna ; Vošta, Milan (advisor) ; Vlčková, Jana (referee)
The thesis examines a potential of markets in Peru, Chile, Uruguay, Argentina and Brazil for trade with acoustic pianos PETROF. The first chapter contains an overview of piano manufacturers and terms associated with that field. Characteristic of protectionism and its effects on trade are mentioned in the first chapter as well, since some countries apply trade barriers frequently. An economic analysis of these states together with a market analysis follows. The market potential investigation is based on field research in the countries of South America.
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