|
|
Analysis of pitch perception depending on the spectrum
Slávik, Martin ; Indrák, Michal (referee) ; Jirásek, Ondřej (advisor)
This thesis is dealing with the research of the influence of individual harmonic components on the perception of sound height. As a part of the work has been made an internet questionnaire on a web address www.analyzavyšek.9e.cz, where individual respondents completed listening test compound of 46 samples. This experiment is based on semantic differential method. Individual samples are compound of sine wave – tone and examined sample, which respondents evaluates on three bipolar scales. The samples were either modelled by additive synthesis or modified sampled sounds of instruments. Individual samples were divided to four major groups and other minor groups for clarity. The purpose was to find which parts, combinations and harmonic components of sound and tone can affect perception of tone height.
|
|
| |
|
|
Experimental Software Musical Instrument on Android Platform with Ability to Control Parameters by Text Conversion
Rychtecký, Václav ; Indrák, Michal (referee) ; Dlouhý, Dan (advisor)
The purpose of the thesis is to create a mobile application on the Android platform, characterized by creation of sound using a text captured by a built-in camera of the device in combination with synthesizer, sequencer and sampler. The implementation is partly based on a design prepared within a semestral thesis and is divided into several parts. The first part briefly describes the types of syntheses, the Android operating system, the Pure Data programming language, MIDI and the Android library for controlling Pure Data. The second part deals with the design of the application and the third part describes the implementation and especially the functionality of the application which is created using the programming language Kotlin and IDE Android Studio from JetBrains in combination with the language Pure Data.
|
|
|
Experimental Software Musical Instrument Controlled by Light Color
Liska, Matej ; Indrák, Michal (referee) ; Dlouhý, Dan (advisor)
Bachelor thesis contains the theory for realization of experimental software instrument controlled by light color. It brings knowledge of sound and light waves and color pro- cessing. Besides others, it describes process of generating digital signals using additive synthesis, methods of signal processing and sonification techniques. It solves program- ming possibilities of creating, processing, playing and saving digital audio signals. The audio source is written in Java language on the JavaFX programming platform.
|
|
|
The comparison of acoustic properties of guitars from the same product line
Trávníčková, Hana ; Indrák, Michal (referee) ; Jirásek, Ondřej (advisor)
This work is dealing with acoustic features of Furch guitars. In theoretical introduction is possible to find an information about basic characteristics of a tone. Following chapter about acoustic guitars is dealing even with mostly used types of woods for their manufacturing. In special chapter are described spectres of signals, LPC analysis, sound radiation of instruments and Chladni figures. Mentioned terms have been evaluated from measurements and are available in practical part of this work also including description of implementation of the measurement. As an output of this work is a comparison of acoustic features of measured guitars, their colours and modes.
|
|
|
The Influence of single harmonics or formants on timbre color perception
Klimeš, Martin ; Indrák, Michal (referee) ; Jirásek, Ondřej (advisor)
This thesis is dealing with the research of the influence of individual harmonic on the perception of sound color. An application was created with a questionnaire in which respondents assessed a total of 29 samples on different bipolar scales.The samples were either modeled by additive synthesis or created by modifying musical instruments. The aim was to investigate how and what combinations of higher harmonic affect the perception of sound color. The experiment is based on the semantic differential method. The samples were divided into several groups and within these groups they were compared and related to the expected color perception.
|
|
|
The spectral and directional analysis of xylophone, vibraphone and glockenspiel
Hoffman, Pavel ; Indrák, Michal (referee) ; Jirásek, Ondřej (advisor)
Bacherlor‘s thesis deals with spectral analysis and directional characteristics of idiophonic instruments, xylophone, vibraphone and glockenspiel. It analyzes various details during spectral analysis, that could have an effect on the spectrum of a given instrument, and especially on its inharmonicity, thus analyzing its effect on the hardness of mallet, dynamics and the location of the mallet striking the bars (stones, wooden plates). It examines the changes in the harmonic range and the formant areas of instruments. The thesis further describes the mallets, the instruments themselves, theoretical base and the means by which the sound samples were acquired and processed.
|
|
| |
|
| |
|
| |
guest ::
RSS feed.