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Multimedia support of the course BSIS
Pasečný, Jan ; Šebesta, Vladimír (referee) ; Sigmund, Milan (advisor)
This paper takes aim at creating a consistent form of study materials, supplemented with illustrative examples, for Signals and systems subject. The thesis starts with basic characteristics of acoustic, image, biological and communication signals. Characteristics of linear signals and AD&DA conversion has been added to the next part and to complete the submission, discrete signals follow. Diploma thesis as a whole contains basic theoretical description of problematics, which it tries to supplement with interesting examples, connections, graphs and matlab scripts for illustrative presentation of mentioned problematics.
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Modern methods speech coding for telecommunication network transmission
Zajíček, Marek ; Rajmic, Pavel (referee) ; Smékal, Zdeněk (advisor)
This bachelor's thesis describes the usage of AMR-WB (Adaptive Multi-Rate Wide-Band) codec in telecommunication networks, especially in mobile networks and VoIP technologies. There are also described basic principles of coding and resolved characteristics of this system in detail, especially advantages, disadvantages and the way of practical usage of codecs. This bachelor's thesis was processed by using LATEX application.
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The Noise Database
Végh, Zoltán ; Špiřík, Jan (referee) ; Hudec, Antonín (advisor)
n semestral thesis proposed a system for recording acoustic signals, which in this case presented a concrete noise, and I have been tested software has to improve the quality of recorded samples. This system consists of several blocks, such as signal pre-processing blocks, to formulate requirements for the improvement of recordings, such as sampling frequency and bit resolution. The first step is therefore to establish settings for the recording device. Then followed the reprocessing of signals such as filtration and separation.
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Recommendations for ECG Acquisition Using BITalino
Němcová, Andrea ; Maršánová, Lucie ; Smíšek, Radovan
Cardiovascular disorders are still the most common cause of death in Western countries. In addition to cardiologists´ care, patient self-examination is the growing area nowadays. For this purpose, mobile devices for ECG signal acquisition are suitable. From these devices, we selected low-cost system called BITalino. In this work, we tested the quality of ECG signals acquired with BITalino under various conditions. We tested 2 values of sampling frequency, 12 electrodes placements and 6 types of exercises. We recommend using sampling frequency of 1,000 Hz, two electrodes placements – on chest and on wrists for both resting and exercise ECG.
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The Noise Database
Végh, Zoltán ; Špiřík, Jan (referee) ; Hudec, Antonín (advisor)
n semestral thesis proposed a system for recording acoustic signals, which in this case presented a concrete noise, and I have been tested software has to improve the quality of recorded samples. This system consists of several blocks, such as signal pre-processing blocks, to formulate requirements for the improvement of recordings, such as sampling frequency and bit resolution. The first step is therefore to establish settings for the recording device. Then followed the reprocessing of signals such as filtration and separation.
|
|
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Modern methods speech coding for telecommunication network transmission
Zajíček, Marek ; Rajmic, Pavel (referee) ; Smékal, Zdeněk (advisor)
This bachelor's thesis describes the usage of AMR-WB (Adaptive Multi-Rate Wide-Band) codec in telecommunication networks, especially in mobile networks and VoIP technologies. There are also described basic principles of coding and resolved characteristics of this system in detail, especially advantages, disadvantages and the way of practical usage of codecs. This bachelor's thesis was processed by using LATEX application.
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|
|
Multimedia support of the course BSIS
Pasečný, Jan ; Šebesta, Vladimír (referee) ; Sigmund, Milan (advisor)
This paper takes aim at creating a consistent form of study materials, supplemented with illustrative examples, for Signals and systems subject. The thesis starts with basic characteristics of acoustic, image, biological and communication signals. Characteristics of linear signals and AD&DA conversion has been added to the next part and to complete the submission, discrete signals follow. Diploma thesis as a whole contains basic theoretical description of problematics, which it tries to supplement with interesting examples, connections, graphs and matlab scripts for illustrative presentation of mentioned problematics.
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