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Control of Real-Time Digital Audio Signal Processing Algorithms using HTML Browser
Slováček, Martin ; Mačák, Jaromír (referee) ; Schimmel, Jiří (advisor)
VST (Virtual Studio Technology) is one of the most used for real-time audio processing. VST effects are inserted to host applications in the form of plug-ins. This thesis discusses a design of a VST host remote control using a Java applet displayed in a web browser. A graphical user interface of the applet consists of graphical controllers created in this thesis. The number of controlled parameters is passed on to the applet by server using an XML configuration file. Three types of controllers are available: a slider, a knob and a button. If a parameter value change occurs, the applet sends a message with the parameter values to the server. Subsequently, the server reacts to this change by setting the parameters of the loaded VST module. The proposed design was completely realized and practically tested.
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VST Plug-IN for audio signal watermarking
Henzl, David ; Schimmel, Jiří (referee) ; Zezula, Radek (advisor)
This thesis deal with digital signal proccessing methods, possibilities their processing and especially audio signal watermarking like possibility safeguard author's rights of audio content. In this thesis are foreshadoweds basic audio watermarking methods and possibilities of watermark detection. To idea generation about watermarking there is described audio watermarking method known as Echo Hiding. This method embed watermarks to audio content in time-domain while watermark detection is made in kepstral-domain by using Fast Fourier Transform and correlation function. Method is implemented like VST plug - in and along with ASIO drivers that minimize signal latency provides audio signal watermarking in real - time. Aim of the first volume of this thesis is introduction of VST technology, ASIO driver and creating VST plug – in‘s. Alternative volume of thesis deal with implementation watermarking methods in conjunction with VST technology.
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Digital audio effect based on wavelet transformation
Mikl, Martin ; Schimmel, Jiří (referee) ; Rajmic, Pavel (advisor)
The Bachelor's thesis deals about problems of digital signal processing. The first part includes function and use of VST Plug-In standard. It describes the history of the VST Plug-In interface, its use in hosting programs, there are a few words about another similar technologies and license terms of use. It is also briefly described the principle of wavelet transform, including some basic mathematical equations. Emphasis is placed on the Discrete-time wavelet transform and Fast wavelet transform. The knowledge of the wavelet transform led into concept of a block diagram with digital audio effect. From this concept has been made digital audio effect in VST Plug-In standart. The final part describes the solution of this effect, including analysis of its component functions. It describes the transmission of the important variables and its controls.
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Digital audio effect based on wavelet transformation
Mikl, Martin ; Schimmel, Jiří (referee) ; Rajmic, Pavel (advisor)
The Bachelor's thesis deals about problems of digital signal processing. The first part includes function and use of VST Plug-In standard. It describes the history of the VST Plug-In interface, its use in hosting programs, there are a few words about another similar technologies and license terms of use. It is also briefly described the principle of wavelet transform, including some basic mathematical equations. Emphasis is placed on the Discrete-time wavelet transform and Fast wavelet transform. The knowledge of the wavelet transform led into concept of a block diagram with digital audio effect. From this concept has been made digital audio effect in VST Plug-In standart. The final part describes the solution of this effect, including analysis of its component functions. It describes the transmission of the important variables and its controls.
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Control of Real-Time Digital Audio Signal Processing Algorithms using HTML Browser
Slováček, Martin ; Mačák, Jaromír (referee) ; Schimmel, Jiří (advisor)
VST (Virtual Studio Technology) is one of the most used for real-time audio processing. VST effects are inserted to host applications in the form of plug-ins. This thesis discusses a design of a VST host remote control using a Java applet displayed in a web browser. A graphical user interface of the applet consists of graphical controllers created in this thesis. The number of controlled parameters is passed on to the applet by server using an XML configuration file. Three types of controllers are available: a slider, a knob and a button. If a parameter value change occurs, the applet sends a message with the parameter values to the server. Subsequently, the server reacts to this change by setting the parameters of the loaded VST module. The proposed design was completely realized and practically tested.
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|
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VST Plug-IN for audio signal watermarking
Henzl, David ; Schimmel, Jiří (referee) ; Zezula, Radek (advisor)
This thesis deal with digital signal proccessing methods, possibilities their processing and especially audio signal watermarking like possibility safeguard author's rights of audio content. In this thesis are foreshadoweds basic audio watermarking methods and possibilities of watermark detection. To idea generation about watermarking there is described audio watermarking method known as Echo Hiding. This method embed watermarks to audio content in time-domain while watermark detection is made in kepstral-domain by using Fast Fourier Transform and correlation function. Method is implemented like VST plug - in and along with ASIO drivers that minimize signal latency provides audio signal watermarking in real - time. Aim of the first volume of this thesis is introduction of VST technology, ASIO driver and creating VST plug – in‘s. Alternative volume of thesis deal with implementation watermarking methods in conjunction with VST technology.
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