High speed end-to-end connection management in a bridged IEEE 1394 network of professional audio devices
- Authors: Okai-Tettey, Harold A
- Date: 2006
- Subjects: IEEE 1394 (Standard) Digital communications Computer networks Sound -- Recording and reproducing -- Digital techniques Computer sound processing
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4653 , http://hdl.handle.net/10962/d1006638
- Description: A number of companies have developed a variety of network approaches to the transfer of audio and MIDI data. By doing this, they have addressed the configuration complications that were present when using direct patching for analogue audio, digital audio, word clock, and control connections. Along with their approaches, controlling software, usually running on a PC, is used to set up and manage audio routings from the outputs to the inputs of devices. However one of the advantages of direct patching is the conceptual simplicity it provides for a user in connecting plugs of devices, the ability to connect from the host plug of one device to the host plug of another. The connection management or routing applications of the current audio networks do not allow for such a capability, and instead employ what is referred to as a two-step approach to connection management. This two-step approach requires that devices be first configured at the transport layer of the network for input and output routings, after which the transmit and receive plugs of devices are manually configured to transmit or receive data. From a user’s point of view, it is desirable for the connection management or audio routing applications of the current audio networks to be able to establish routings directly between the host plugs of devices, and not the audio channels exposed by a network’s transport, as is currently the case. The main goal of this work has been to retain the conceptual simplicity of point-to-point connection management within digital audio networks, while gaining all the benefits that digital audio networking can offer.
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- Date Issued: 2006
Immigrant adaptation in South Africa
- Authors: Couper, Michael Patrick
- Date: 1991
- Subjects: Immigrants -- South Africa South Africa -- Emigration and immigration -- Social aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3330 , http://hdl.handle.net/10962/d1003118
- Description: Although the immigrant flow to South Africa has been relatively small compared to that of other immigrant receiving countries, when considered in terms of the size of South Africa's population and the fact that immigrants are restricted to the White population group, the role of immigrants in this society is considerable. Despite this, few comprehensive studies of the experiences of immigrants in South Africa have been attempted. The aim of this study is to examine the adaptation of immigrants from various countries according to a number of dimensions. Adaptation is conceived of as a dynamic and multidimensional process. A mail survey of seven immigrant groups in South Africa was undertaken during 1985. A total of 3,520 completed questionnaires were obtained from respondents representing British, German, Dutch, Italian, Portuguese, British African and Portuguese African immigrants. The relationships among dimensions of subjective adaptation (satisfaction, identification and acceptance) and objective adaptation (social, cultural, economic, religious and political adaptation) are examined. The role of settlement and citizenship intentions are also investigated, as are various factors (country of origin, length of residence, etc.) that affect immigrant adaptation in South Africa. Multivariate analyses are undertaken to explore the nature of the relationships among these variables. Following these analyses a model of immigrant adaptation in South Africa is proposed. This model is intended to serve as a framework to guide future research on the adaptation of immigrants in South Africa.
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- Date Issued: 1991