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Effect of alcohol on speech signal
Kandus, Filip ; Tučková, Jana (referee) ; Sigmund, Milan (advisor)
The main theme of the thesis is to examine the influence of alcohol on the speech apparatus and speech signal. The first part is focused on symptoms and detection of alcohol concentration in the human body. The following part describes somescientific publications and projects, which dealt witha a similar theme. Also the czech documentation to german database ALC was created. Based on phonetic knowledge, Czech text was compiled. Different speakers were reading this text so we go tour own database of alcoholic and sober speech. Samples from individual speakers are processed using linear prediction, formant and cepstral analysis in MATLAB and the effect of alcohol on selected parameters of speech signal is evaluated.
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Modern audio amplifier conception
Kandus, Filip ; Kratochvíl, Tomáš (referee) ; Petržela, Jiří (advisor)
The aim of this project is a construction of low-frequency audio amplifier for wide usage. It should serve as complement of a student room with two computers. Computers will be connected together and one choose first or second one by the input at a correcting preamplifier. Due to line output it is possible to connect the current 2.1 system so the whole system contains five speakers. From this solution I expect improvement in voice perception. This amplifier has a power of 2x20W with IO TA2020 – 020, which was introduced by Tripath.Inc. It exceeds especially by working in class T, which is commercional label of the higher named company. This company invented a special algorithm of processor controlling which meant a revolution: a high efficiency about 90%, low requirements for cooling and low distortion. By including a correcting preamplifier and power supply widely used for notebooks we get a complex able to import a signal from mp3-player, PC, TV or DVD-recorder to the level of speakers.
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Modern audio amplifier conception
Kandus, Filip ; Kratochvíl, Tomáš (referee) ; Petržela, Jiří (advisor)
The aim of this project is a construction of low-frequency audio amplifier for wide usage. It should serve as complement of a student room with two computers. Computers will be connected together and one choose first or second one by the input at a correcting preamplifier. Due to line output it is possible to connect the current 2.1 system so the whole system contains five speakers. From this solution I expect improvement in voice perception. This amplifier has a power of 2x20W with IO TA2020 – 020, which was introduced by Tripath.Inc. It exceeds especially by working in class T, which is commercional label of the higher named company. This company invented a special algorithm of processor controlling which meant a revolution: a high efficiency about 90%, low requirements for cooling and low distortion. By including a correcting preamplifier and power supply widely used for notebooks we get a complex able to import a signal from mp3-player, PC, TV or DVD-recorder to the level of speakers.
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Effect of alcohol on speech signal
Kandus, Filip ; Tučková, Jana (referee) ; Sigmund, Milan (advisor)
The main theme of the thesis is to examine the influence of alcohol on the speech apparatus and speech signal. The first part is focused on symptoms and detection of alcohol concentration in the human body. The following part describes somescientific publications and projects, which dealt witha a similar theme. Also the czech documentation to german database ALC was created. Based on phonetic knowledge, Czech text was compiled. Different speakers were reading this text so we go tour own database of alcoholic and sober speech. Samples from individual speakers are processed using linear prediction, formant and cepstral analysis in MATLAB and the effect of alcohol on selected parameters of speech signal is evaluated.
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