|
|
Analysis of Time-Varying Spectrum of Pianos
Smělý, Pavel ; Rajmic, Pavel (referee) ; Jirásek, Ondřej (advisor)
This work focuses on an analysis of a time-varying spectrum of pianos. The beginning of the work deals with the gradual evolution of the piano, aiming at timbre and design, and it analyzes in detail its individual parts and their influence on the sound spectrum. The theoretical part also concentrates on the issue of harmonic analysis in both the musical conception of timber and the usage of mathematical signal processing methods that make this analysis possible. Another part deals with practical tasks of the work such as a description of an application and functions created in the interface of MATLAB for exploring the time-varying spectrum of tones, description of the method and procedure of the measuring of three concert grand pianos. The work also analyzes, by supporting it with practical examples and by comparing the measured pianos, the most important acoustic phenomena that originate from the production of tones in the instrument; it describes the timber of individual instruments, and it gives recommendations.
|
|
|
Analysis and comparison of spectra in different piano models
Peloušek, Tomáš ; Přikryl, Lubor (referee) ; Jirásek, Ondřej (advisor)
This work focuses on the topic of analysis of the time varying spektrum of the piano. The introduction deals with the historical development of the piano, of its individual parts and the way they influence the tone colour. The subsequent theoretical part is focused mainly on the topic of spectral analysis in the musical concept of sound colours. In the following part a measuring of particular musical instruments is described, these experiments being conducted in an anechoic chamber provided by the instrument producer. It also lists the various methods and calculations used in the process and the conclusion presents analysis of acquired samples.
|
|
|
Audio synthesizer in FPGA chip
Tomko, Jakub ; Pristach, Marián (referee) ; Bohrn, Marek (advisor)
This thesis analyses methods of sound synthesis. Advantages and disadvantages of application of individual methods in music synthetizers are evaluated. Based on piano sound analysis, the suitable method for synthesizer's design is chosen. Synthesizer has been implemented in FPGA of Spartan-3 Development Board.
|
|
|
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.
|
|
|
Design of Digital Piano
Sikora, Halina ; Chorý, Tomáš (referee) ; Sládek, Josef (advisor)
This master’s thesis deals with the design of a digital piano. This increasingly popular musical instrument offers possibilities not available in an acoustic piano (outputting sound into headphones, utilizing sample libraries, recording, use of sheet music in digital form and more). From technical standpoint, it attempts to closely mimic the qualities of traditional instruments, both in its tactile feedback and sound quality. The aim of this work was to design a solution which would starkly differentiate from the very conservative classical design without being overly extravagant. The main focus is therefore on aspects of visual appearance, with emphasis on ergonomics, and an outline of the technical solution.
|
|
| |
|
|
Algorithmic Accompaniment Composition
Vinš, Jakub ; Hradiš, Michal (referee) ; Kolář, Martin (advisor)
This thesis deals with problems of computer music, especially with generating accompaniment to an existing song in MIDI format by means of artificial neural networks. Existing methods of algorithmic music composition are presented in the beginning. Followed by problems and their solutions connected with the conversion of MIDI files to matrices, which are suitable as an input for neural network and their inverse transformation. Subsequently are proposed, created, optimized and evaluated models which generate saxophone and piano accompaniment by means of feedforward and recurrent neural network. At the end model generates accompaniment to my own song as a form of a test.
|
|
|
Conversion of Piano Recording from WAV to MIDI
Bednařík, Jan ; Černocký, Jan (referee) ; Szőke, Igor (advisor)
The aim of the thesis is to propose a system capable of automatic conversion of polyphonic piano recordings from the audio format WAV to MIDI. The thesis describes problems related to single tone recognition in music recordings and proposes a solution based on a probabilistic model that uses the Probabilistic Latent Component Analysis method. Recordings of isolated digital piano tones were used to train the system. The proposed system was tested on classical recordings of the Classical Piano MIDI database and on recordings of a Korg SP-250 piano and evaluated using a variety of metrics. The conclusion part contains the results of recognition success rate and their comparison with other existing systems.
|
|
| |
|
|
Klement Slavický and his piano music for children
Honzová, Miroslava ; Tichá, Libuše (advisor) ; Palkovská, Jana (referee)
This diploma thesis deals with instructive solo piano pieces by Klement Slavický. In the first chapter, a brief biography of the composer is presented. The second chapter is concerned with his piano cycles for children which includes the following cycles: On the Whites and Blacks, Piano and Youth, 12 Small Studies, At Home with the Piano, and Amoroso. The third chapter contains pedagogical and interpretative approach to the selected pieces from the aforementioned cycles. In this chapter, chosen practise procedure of the selected pieces, ways of dealing with the performance and technical issues as well as insights of the individual pupils are also presented. The fourth chapter contains the results of my questionnaire survey, the purpose of which was to find out the frequency of teachers' incorporation of Slavický's pieces into the pupils' repertoire, the compositions performed the most frequently, the ways pupils cope with his music as well as the teachers' own view of Slavický's personality and his music. The third and the fourth chapter also include some generally applicable didactic principles as well as author's personal observations that she considered important to mention. The aim of the thesis is to delve deeper into Klement Slavický's work for solo piano intended for children primarily...
|
guest ::
