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Titlebook: Assessment and Prediction of Speech Quality in Telecommunications; Sebastian Möller Book 2000 Springer Science+Business Media Dordrecht 20

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期刊全称Assessment and Prediction of Speech Quality in Telecommunications
影响因子2023Sebastian Möller
视频videohttp://file.papertrans.cn/164/163348/163348.mp4
图书封面Titlebook: Assessment and Prediction of Speech Quality in Telecommunications;  Sebastian Möller Book 2000 Springer Science+Business Media Dordrecht 20
影响因子The quality of a telecommunication voice service is largely inftuenced by the quality of the transmission system. Nevertheless, the analysis, synthesis and prediction of quality should take into account its multidimensional aspects. Quality can be regarded as a point where the perceived characteristics and the desired or expected ones meet. A schematic is presented which classifies different entities which contribute to the quality of a service, taking into account conversational, user as weIl as service related contributions. Starting from this concept, perceptively relevant constituents of speech communication quality are identified. The perceptive factors result from ele­ ments of the transmission configuration. A simulation model is developed and implemented which allows the most relevant parameters of traditional trans­ mission configurations to be manipulated, in real time and for the conversation situation. Inputs into the simulation are instrumentally measurable quality elements commonly used in transmission planning of telephone networks. A reduced set of these quality elements forms a basis for models which aim at predicting mouth-to-ear quality as it would be perceived b
Pindex Book 2000
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Factors Influencing the Quality of Service,ace-to-face conversation, this situation is taken as a reference for the use of a telecommunication service. Factors can be identified which relate to different conversation modalities. The transmission paths which are involved in this type of conversation are illustrated in Figure 3.1. Starting fro
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Quality of Prediction Models,ble to make accurate and valid quality measurements without taking these factors into account. Therefore, auditory testing is required to measure quality. On the other hand, in the planning and set-up of telecommunication networks it is very often not possible to perform auditory tests before the ne
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Final Discussion and Conclusions, expectations and desires. Speech as such does not carry a quality in itself. Quality is an event, and consequently it can only be established in a specific situation. A schematic describing the constitutional components of the quality of a telecommunication service has been developed. This schemati
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Introduction,etworks. Though new technologies have been introduced and a steady transition is made towards fully digital circuits, it seems that speech communication quality tended to decrease again in the mid—term.
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