The diploma thesis aims on the matter of data hiding (steganography) in audio records. It describes general steganographic principles and aims further on the specifics of data hiding in audio records and also aims on the LSB steganographic technique and suitability of different types of audio records to be used with this technique. The thesis also describes a laboratory exercise focused on steganography in audio records and influence of related aspects on the final audio record which contains secret data. Further, the thesis describes a program that was created especially for the laboratory exercise, from the design, functional as well as implementation-related view. Within the exercise, students will be able to examine how the amount of data to be hidden in the audio record and different ways of data hiding will affect quality of the resulting audio record, and therefore they can become more familiar with the matter of steganography based on the LSB method used in audio records.

This report details the process of developing libraries to handle data management on two types of non-volatile memory interfacing with an STM32 microprocessor. This was done at the request of Suonobouno AB, who are developing digital and analog synthesizers. This work included the development of generic open-ended memory management functions, as well as functions for handling the specific data structures used in the company's instruments, the later building on the former. In the end, a library was developed that can perform the reading and writing of data to the storage mediums through a clean interface devoid of unnecessary detail. The solution is highly modular, with a clear strategy for managing coupling, to allow the library to grow and develop with further integration. / I denna rapport beskrivs arbetet med att utveckla bibliotek för hantering av externa lagringsenheter som används av en STM32 mikroprocessor. Detta utfördes på uppdrag av Suonobouno AB som utvecklar digitala och analoga syntar. Detta arbete innefattade framtagandet av generiska funktioner för minneshantering, så väl som funktioner anpassade för de specifika datastrukturer som förekommer i det system som är den tilltänkta applikationen. I slutändan åstadkoms ett bibliotek som kan utföra den nödvändiga läsningen och lagringen av data till de två lagringsmedia som omfattades av projektet. Detta kan kontrolleras genom ett rent interface som inte kräver kännedom om tekniska detaljer bakom lagringsteknikerna. Biblioteket är modulärt, med en tydlig strategi för att hantera beroenden, så att det kan växa och utvecklas med vidare integrering.

This thesis analyzes the specific audio signal-music. It describes the basic methods of analysis of musical signals. The following are mentioned the most common music file formats and the possibility of cross transfer. There are explained terms of music theory, which are also present in this work. They are described and created three ways of detecting melody. It is selected optimal algorithm based on the successful detection of the reference melodies recordings. User interface is created in MATLAB GUI allows recognition of recordings. This interface is tested on few melodies.

Speech is one of the basic forms of human communication and disruption of communication ability can negatively affect the life of man. deals with the elaboration of logopedic theory, which serves as a basis for the follow-up design and application creation in the field of speech therapy. The thesis is divided into five chapters. The first chapter deals with the history of speech therapy with an emphasis on domestic logopaedia, the logopedic intervention process in its entirety, and the differentiation of individual types of impaired communication skills. The second chapter focuses on a specific disruption of communication skills - dyslalia.The application for the treatment of dyslalia is determined by the application, which is elaborated in the third chapter. The fourth chapter contains a detailed description of the designed and created application, including an explanation of the processes running in the application when the application is being used. The last chapter of this diploma thesis contains a summary of the results of the practical testing of the application together with suggestions for improvement of the application.

The work deals with the recording and reproduction of sound tracks on 16mm film and with old forgotten film optic sound technologies, as well as plans experiments and research, which examines possible methods for reading and writing tracks using modern optoelectronic devices. The final output is intended to drive the writing negative audio (analog and digital) on the photosensitive material and design of the device for synchronous playback of digital audio tracks from an external memory card. The work is done in collaboration with film laboratories Barrandov Studio a.s. and Meopta-Optika, spol. s r.o.

The use of temporary employment services as a means to achieve flexibility in die labour market led to various complications due to a lack of proper regulation. The atypical formation of the triangular employment relationship, limited rights and less favourable employment conditions of the temporary employees, multiple authority figures and their liabilities under various circumstances and the impact thereof on such employee’ collective bargaining rights caused legal uncertainty in the absence of sufficient legislation to govern it. Temporary employment agencies developed certain methods in order to evade the restrictive labour legislation and employer duties imposed on them, namely by making use of automatic termination clauses (resolutive conditions) and by categorising the temporary employee as an independent contractor. Last mentioned would effectively exclude the temporary employee from labour legislation and the protection it provides. In reaction to abovementioned problems, trade unions have been objecting to the use of temporary employment agencies and went as far as demanding the total ban thereof. This raised the question in the South African Government whether said agencies should indeed be banned. The other option is a less restrictive approach and entails the attempt to regulate these agencies by amending the current labour legislation in order to accommodate temporary employment services. In light of the fact that various proposals to amend the current South African labour legislation (especially with regard to temporary employment services) have been published in the Government Gazette, it can be deduced that the social partners ultimately chose to regulate temporary employment agencies rather than ban them altogether. From an early stage the International Labour Organisation (ILO) provided rules and regulations for the management of employment agencies in general by way of conventions and recommendations. In 1997, in order to give effect to the labour standards identified by it, the ILO brought the Private Employment Agencies Convention into existence. This document could be applied to all temporary employment agencies on an international level. This document provides for administrative regulations, the duties of the agency and the client as well as the rights of the temporary employees concerned. The ILO recommends that all of its member states incorporate the principles contained within this document in their own legislation. Temporary employment services are also used in other legal systems. For purposes of this study, the English law (United Kingdom (UK)) and the Namibian law will be scrutinised. Similar issues to those recognised in the South African law have been identified in these countries. However, each has approached said problems in different ways. The Namibian Government banned the conducting and provision of these services by way of legislation in 2007. The constitutionality of the ban has however been questioned by the Supreme Court of Namibia, after which it had been found to infringe upon the fundamental freedom to carry on any business, trade or occupation. The ban was struck down as unconstitutional. The Namibian Government has since promulgated new legislation in which it removed the ban and replaced it with numerous amendments providing for the regulation of temporary employment services. Since 1973 the UK has been promulgating various instruments for the thorough regulation of temporary employment agencies. These instruments provide for the management of temporary employment agencies and the rights of the employees involved. The relevant legislative instruments have been updated regularly with the purpose of ensuring that the needs of all the parties concerned are met. The UK, as a member state of the European Union (EU), (which has also been providing for the regulation of temporary employment services in various directives), promulgated legislation specifically with the aim to give effect to the principles in the mentioned directives. By way of doctrines and the creation of a third category ―worker‖ the UK has been attempting to prevent any loopholes in their legal system with regard to temporary employment services and the rights of the employees involved. The aim of this study is to investigate all the important complications experienced with temporary employment agencies in order to indicate the impact the atypical circumstances have on the rights of the temporary employees. The degree to which, if at all, the South African law complies with the preferred labour standards identified by the ILO will be pointed out. A comparative study will be conducted, first by ascertaining in detail how the comparable issues in the UK and Namibian law are dealt with, and second by identifying which aspects in these legal systems could be of value to the South African law. Finally the potential effectiveness of the proposed amendments to the South African labour legislation will be analysed, during which recommendations for the unresolved issues will be provided. The recommendations are mainly aimed at achieving sufficient rights and legal certainty for the temporary employees associated with temporary employment agencies. / Thesis (PhD (Law))--North-West University, Potchefstroom Campus, 2013.

The use of temporary employment services as a means to achieve flexibility in die labour market led to various complications due to a lack of proper regulation. The atypical formation of the triangular employment relationship, limited rights and less favourable employment conditions of the temporary employees, multiple authority figures and their liabilities under various circumstances and the impact thereof on such employee’ collective bargaining rights caused legal uncertainty in the absence of sufficient legislation to govern it. Temporary employment agencies developed certain methods in order to evade the restrictive labour legislation and employer duties imposed on them, namely by making use of automatic termination clauses (resolutive conditions) and by categorising the temporary employee as an independent contractor. Last mentioned would effectively exclude the temporary employee from labour legislation and the protection it provides. In reaction to abovementioned problems, trade unions have been objecting to the use of temporary employment agencies and went as far as demanding the total ban thereof. This raised the question in the South African Government whether said agencies should indeed be banned. The other option is a less restrictive approach and entails the attempt to regulate these agencies by amending the current labour legislation in order to accommodate temporary employment services. In light of the fact that various proposals to amend the current South African labour legislation (especially with regard to temporary employment services) have been published in the Government Gazette, it can be deduced that the social partners ultimately chose to regulate temporary employment agencies rather than ban them altogether. From an early stage the International Labour Organisation (ILO) provided rules and regulations for the management of employment agencies in general by way of conventions and recommendations. In 1997, in order to give effect to the labour standards identified by it, the ILO brought the Private Employment Agencies Convention into existence. This document could be applied to all temporary employment agencies on an international level. This document provides for administrative regulations, the duties of the agency and the client as well as the rights of the temporary employees concerned. The ILO recommends that all of its member states incorporate the principles contained within this document in their own legislation. Temporary employment services are also used in other legal systems. For purposes of this study, the English law (United Kingdom (UK)) and the Namibian law will be scrutinised. Similar issues to those recognised in the South African law have been identified in these countries. However, each has approached said problems in different ways. The Namibian Government banned the conducting and provision of these services by way of legislation in 2007. The constitutionality of the ban has however been questioned by the Supreme Court of Namibia, after which it had been found to infringe upon the fundamental freedom to carry on any business, trade or occupation. The ban was struck down as unconstitutional. The Namibian Government has since promulgated new legislation in which it removed the ban and replaced it with numerous amendments providing for the regulation of temporary employment services. Since 1973 the UK has been promulgating various instruments for the thorough regulation of temporary employment agencies. These instruments provide for the management of temporary employment agencies and the rights of the employees involved. The relevant legislative instruments have been updated regularly with the purpose of ensuring that the needs of all the parties concerned are met. The UK, as a member state of the European Union (EU), (which has also been providing for the regulation of temporary employment services in various directives), promulgated legislation specifically with the aim to give effect to the principles in the mentioned directives. By way of doctrines and the creation of a third category ―worker‖ the UK has been attempting to prevent any loopholes in their legal system with regard to temporary employment services and the rights of the employees involved. The aim of this study is to investigate all the important complications experienced with temporary employment agencies in order to indicate the impact the atypical circumstances have on the rights of the temporary employees. The degree to which, if at all, the South African law complies with the preferred labour standards identified by the ILO will be pointed out. A comparative study will be conducted, first by ascertaining in detail how the comparable issues in the UK and Namibian law are dealt with, and second by identifying which aspects in these legal systems could be of value to the South African law. Finally the potential effectiveness of the proposed amendments to the South African labour legislation will be analysed, during which recommendations for the unresolved issues will be provided. The recommendations are mainly aimed at achieving sufficient rights and legal certainty for the temporary employees associated with temporary employment agencies. / Thesis (PhD (Law))--North-West University, Potchefstroom Campus, 2013.