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Implementation of the Parametric Equalizer into VST3 Plug-in
Pevný, Jindřich ; Schimmel, Jiří (referee) ; Frenštátský, Petr (advisor)
This thesis deals with the field of DSP (Digital Signal Processing), specifically with structures of digital parametric shelving filters, which can be used as building blocks of parametric equalizer. The objective of this thesis is to learn the options of indirect parametric filter design using decomposition of transfer functions into the function of an all-pass filter and implement these using Steinberg’s VST3 SDK.
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Application for measurement of audio effects
Frenštátský, Petr ; Schimmel, Jiří (referee) ; Mačák, Jaromír (advisor)
The term paper is focused on the implementation and description of the application for the measurement of sound effects, which are implemented as plug-ins. Application measures in the time domain impulse response, transfer characteristics of dynamic effects. Application also shows the waveforms of attack and release time. In frequency domain application measures the frequency spectrum of the signal and frequency response of the system. The application is accompanied by the measurement of external effects by ASIO interface.
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3D Graphics Extension of Graphical User Interfaces of Audio Plugins
Dufka, Filip ; Mašek, Jan (referee) ; Frenštátský, Petr (advisor)
This thesis deals with possibilities of an extension of audio modules graphical user interface with 3D models using OpenGL framework. As an audio module implementing digital signal processing algorithms Virtual Studio Technology (VST) is used. The objective of this thesis is a creation of an algorithm for a change of sound source location. The algorithm is implemented in VST3 with an additional 3D visualization.
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VST Plug-in for Dynamic Processing of Audio Signal
Zoň, Robin ; Frenštátský, Petr (referee) ; Schimmel, Jiří (advisor)
The aim of this thesis is the implementation of effects for adjusting the signal dynamics. This project includes four basic dynamic effects - compressor, expander, limiter and noise gate. The first part is developed in Matlab software. This solution offers signal sidechain input, display of signal waveforms of each block of sidechain branch, recording output signal and allows storage of output characteristics. In the second part, the effect is being realized using VST technology, which offers the possibility of changing the parameters in real time and displaying and recording the signal at various points within the control branch. Project also includes a brief discussion of the use of such dynamic effects in practice and collection of model examples to demonstrate the use of such effects.
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Fractional-Octave Analysis of Acoustic Signals
Ryšavý, Marek ; Frenštátský, Petr (referee) ; Schimmel, Jiří (advisor)
The diploma thesis is focused on design and optimalization of digital octave and fraction-octave band filters. This thesis describe the behavior of filters in systems with fixed point arithmetics and investigate the impact of quantization coefficients for frequency response of filter. Filters, whitch has been designed, are implemented into simple software in C. Designed filters are in accordance with standard IEC 61260.
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Software generator of test signals for acoustic measurements
Veselá, Petra ; Schimmel, Jiří (referee) ; Frenštátský, Petr (advisor)
The aim of the thesis is to create a VST2 plug-in module capable of generating input signals for different kinds of acoustic measurements. The opening section offers a theorethical overview of various test signals, their parameters and possibilities of their use during measurement. Subsequent divisions are then introducing a description of several methods of acoustic measurements and a brief overview of a VST interface. Last chapter offers the analysis of the created signals and discussion of their potential use in practice.
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Methods for high resulution spectral analysis
Pevný, Jindřich ; Schimmel, Jiří (referee) ; Frenštátský, Petr (advisor)
This thesis deals with the topic of high resolution spectral analysis. In the first part, selected methods are presented and afterwards compared based on the Matlab implementations. The problematics of reduction of crossterms in quadratic time–frequency distributions is also covered. The second part is focused on the implementation and optimization of the algorithm for real-time computation of smoothed Wigner distribution function.
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Multichannel Audio Signal Transmission Over Local Area Network
Kotouček, Filip ; Frenštátský, Petr (referee) ; Schimmel, Jiří (advisor)
This thesis deals with design and implementation of multi-channel audio signal streaming via local network. The aim was to choose suitable processor for the transmission of up to 32 channels of audio signal, which will be used for implementation. Also the low-latency ASIO driver was studied and was used to provide timestamps for synchronization. The transmission protocol was designed for signaling and for the real time stream. The actual transmission is provided by TCP protocol. In conclusion, I created the application for development board with choosen MCU. Finally whole solution was tested with real data.
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Comparison of Algorithms for Creation of Artificial Room Reverberations
Beňo, Tomáš ; Balík, Miroslav (referee) ; Frenštátský, Petr (advisor)
The aim of the Bachelor thesis is to get acquainted with and find out possibilities of control of the reverberation properties of established algorithms for creation of artificial room reverberation. The algorithms proposed by Jon Dattorro, William Gardner and Jean-Marc Jot are implemented in the Matlab environment. Their characteristics and comparison are determined. Subsequent implementation of Jot's algorithm into the VST plug-in module in Matlab using the Audio System Toolbox extension enables to study the properties and behavior of the algorithm that handles real-time sound. The resulting plug-in can then be tested in DAW as a host application.
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