歌词到歌曲转换系统的实现

将文语转换技术与语音修改技术相结合,实现了一个歌词到歌曲的转换系统。首先利用一个文语转换系统将输入的歌词转换为语音,同时从歌曲的MIDI文件中提取歌曲的旋律参数,最后通过旋律控制模型对语音信号的声学特征进行修改,实现由歌词到歌曲的转换。实验结果表明,系统合成的歌曲达到了3.29的平均MOS得分。     

Positive and negative aspects of the work of information technology personnel: An exploratory analysis

This paper re-analyses data gathered in a 1989 research among Dutch information technology personnel. Working from Karasek's job stress model, we use exploratory multiple correspondence analyses on the aggregated data matrix of occupations and work items. We employed two models: one that emphasised the negative evaluations of job aspects, and one that emphasised positive evaluations. The structuring of positive evaluations of job aspects proved most meaningful. Occupations could be distinguished into three groups. The first and largest group is characterised by a fairly balanced degree of autonomy and workload. A second group comprised of middle management occupations is characterised by unfavourable judgement on workload, matched by insufficient autonomy; as such, employees in these occupations appear at risk of overburdening. A third group of computer specialists report a workload that is too slight given their degree of autonomy; this group appears to be at risk of underburdening.     

Positive and negative aspects of the work of information technology personnel: an exploratory analysis

This paper re-analyses data gathered in a 1989 research among Dutch information technology personnel. Working from Karasek's job stress model, we use exploratory multiple correspondence analyses on the aggregated data matrix of occupations and work items. We employed two models: one that emphasised the negative evaluations of job aspects, and one that emphasised positive evaluations. The structuring of positive evaluations of job aspects proved most meaningful. Occupations could be distinguished into three groups. The first and largest group is characterised by a fairly balanced degree of autonomy and workload. A second group comprised of middle management occupations is characterised by unfavourable judgement on workload, matched by insufficient autonomy; as such, employees in these occupations appear at risk of overburdening. A third group of computer specialists report a workload that is too slight given their degree of autonomy; this group appears to be at risk of underburdening.     

Ontological aspects of information modeling

Information modeling (also known as conceptual modeling or semantic data modeling) may be characterized as the formulation of a model in which information aspects of objective and subjective reality are presented (the application), independent of datasets and processes by which they may be realized (the system).A methodology for information modeling should incorporate a number of concepts which have appeared in the literature, but should also be formulated in terms of constructs which are understandable to and expressible by the system user as well as the system developer. This is particularly desirable in connection with certain intimate relationships, such as being the same as or being a part of.The conceptual basis for such a methodology, as conventionally approached, seems flavored with notions arising in the systems arena to an inappropriate degree. To counter this tendency it is useful to turn to a discipline not hitherto much involved in technology, namely analytic philosophy.     

Women's voice: The case of nursing information systems

This paper looks at the cultural transformation of nursing. It argues that introducing computers in a female occupation is not simply a case of imposing male technology on female care-oriented practices and values. In order to understand current changes of nursing practice, three points of view have to be simultaneously kept in focus: 1) the differences between women's interests and ambitions; 2) the readings of a technology that have already been established through previous examples of design and use (in hospitals up to date primarily for the purpose of establishing discipline and management control); and 3) the social practices that dominate a field of work (in the case of health work the already technology-driven cure aspect).     

基于EPON家庭信息终端的语音网关硬件设计与实现

以太无源光网络（EPON）技术的发展,使三网融合光纤到户成为各单位与居民区最佳的信息接入解决方案,本文就是在EPON技术上,实现了三网融合中网络电话（VOIP）的网关设计,该网关能将模拟的声音信号转换成组播IP信号,实现用户驻地网实现电话电网与计算机互联网的融合。     

Data-driven detection and analysis of the patterns of creaky voice

This paper investigates the temporal excitation patterns of creaky voice. Creaky voice is a voice quality frequently used as a phrase-boundary marker, but also as a means of portraying attitude, affective states and even social status. Consequently, the automatic detection and modelling of creaky voice may have implications for speech technology applications. The acoustic characteristics of creaky voice are, however, rather distinct from modal phonation. Further, several acoustic patterns can bring about the perception of creaky voice, thereby complicating the strategies used for its automatic detection, analysis and modelling. The present study is carried out using a variety of languages, speakers, and on both read and conversational data and involves a mutual information-based assessment of the various acoustic features proposed in the literature for detecting creaky voice. These features are then exploited in classification experiments where we achieve an appreciable improvement in detection accuracy compared to the state of the art. Both experiments clearly highlight the presence of several creaky patterns. A subsequent qualitative and quantitative analysis of the identified patterns is provided, which reveals a considerable speaker-dependent variability in the usage of these creaky patterns. We also investigate how creaky voice detection systems perform across creaky patterns.     

网络信息处理与安全方面的计算机应用

伴随着目前科学技术水平的逐步提高,网络及计算机被广泛应用到各个领域,并获取了一定的成果。人们在享受互联网进行工作所带来的快速与便捷同时,也需要重视网络信息的安全,采用多种措施提高信息的处理能力,保证信息的安全。本文简要论述了计算机网络信息处理及安全的相关内容,目的在于更好的提高计算机的应用质量,进一步推动社会发展。     

Hierarchical information and the synthesis of distributed strategies

Acta Informatica - Infinite games with imperfect information are known to be undecidable unless the information flow is severely restricted. One fundamental decidable case occurs when there is a...     

Human-factors aspects of designing computer voice output systems as communication aids for the disabled

Possible ways of meeting the user's needs when designing communication aids with synthetic voice output are discussed. The points raised evolved from a case study of the development of microcomputer based systems which the blind people can use to read page-oriented text. The ideas discussed in this paper may also enhance the performance of blind computer programmers. Essential facilities in communication aids for the non-vocal are also inferred.     

Fusion of voice signal information for detection of mild laryngeal pathology

Detection of mild laryngeal disorders using acoustic parameters of human voice is the main objective in this study. Observations of sustained phonation (audio recordings of vocalized /a/) are labeled by clinical diagnosis and rated by severity (from 0 to 3). Research is exclusively constrained to healthy (severity 0) and mildly pathological (severity 1) cases – two the most difficult classes to distinguish between.Comprehensive voice signal characterization and information fusion constitute the approach adopted here. Characterization is obtained through diverse feature set, containing 26 feature subsets of varying size, extracted from the voice signal. Usefulness of feature-level and decision-level fusion is explored using support vector machine (SVM) and random forest (RF) as basic classifiers. For both types of fusion we also investigate the influence of feature selection on model accuracy. To improve the decision-level fusion we introduce a simple unsupervised technique for ensemble design, which is based on partitioning the feature set by k-means clustering, where the parameter k controls the size and diversity of the prospective ensemble.All types of the fusion resulted in an evident improvement over the best individual feature subset. However, none of the types, including fusion setups comprising feature selection, proved to be significantly superior over the rest. The proposed ensemble design by feature set decomposition discernibly enhanced decision-level and significantly outperformed feature-level fusion. Ensemble of RF classifiers, induced from a cluster-based partitioning of the feature set, achieved equal error rate of 13.1 ± 1.8% in the detection of mildly pathological larynx. This is a very encouraging result, considering that detection of mild laryngeal disorder is a more challenging task than a common discrimination between healthy and a wide spectrum of pathological cases.     

Design and evaluation of a smart home voice interface for the elderly: acceptability and objection aspects

Smart homes equipped with ambient intelligence technology constitute a promising direction to enable the growing number of elderly to continue to live in their own home as long as possible. However, this calls for technological solutions that suit their specific needs and capabilities. The Sweet-Home project aims at developing a new user friendly technology for home automation based on voice command. This paper reports a user evaluation assessing the acceptance and fear of this new technology. Eight healthy persons between 71 and 88 years old, 7 relatives (child, grandchild or friend) and 3 professional carers participated in a user evaluation. During about 45 min, the persons were questioned in co-discovery in the Domus smart home alternating between interview and wizard of Oz periods followed by a debriefing. The experience aimed at testing four important aspects of the project: voice command, communication with the outside world, domotics system interrupting a person’s activity, and electronic agenda. Voice interface appeared to have a great potential to ease daily living for elderly and frail persons and would be better accepted than more intrusive solutions. By considering still healthy and independent elderly people in the user evaluation, an interesting finding that came up is their overall acceptance provided the system does not drive them to a lazy lifestyle by taking control of everything. This particular fear must be addressed for the development of smart homes that support daily living by giving them more ability to control rather than putting them away from the daily routine.     

微型直线旋转音圈电机的设计与分析

针对光电子封装设备对高精度、小体积、多维运动电机的需求,设计了一种微型单定子直线旋转两自由度音圈电机.介绍了电机的结构特点和运行原理,以输出推力和转矩特性为优化目标,利用有限元仿真对其结构参数进行了优化.根据优化的结构参数制造样机进行实验,实验结果表明:电机输出推力、扭矩幅值大,推力波动、扭矩波动在0.5％以下,验证了电机设计和优化仿真的有效性.     

Buffer analysis of an integrated voice and data terminal

Current research activities in computer networks tend to emphasize the integration of services such as voice and data by designing networks that take into account the performance requirements of these services. In some cases, however, design and implementation of a totally new network may not be feasible. An alternative approach in such cases would be to integrate the services at the terminal level. Such an integrated terminal could also be widely used in future office automation systems. The performance of such an integrated terminal is assessed with the assumption that the terminal is connected to a voiceband channel. The analysis indicates the performance limits on the application imposed by the buffer size at the terminal and the large fluctuation of delay performance for data traffic. A window-type flow control for data traffic is also considered. By appropriately choosing the buffers in the terminal and window size, both voice and data traffic service requirements can be met.     

Mutual information aspects of scale space images

In image registration, mutual information is a well-performing measure based on principles of uncertainty. Similarly, in image analysis the Gaussian scale space, based on minimal assumptions of the image, is used to derive intrinsic properties of an image. This paper starts an investigation of a combination of both methods. This combination results in a double parameterized mutual information measure using local information of the image. For single modality matching best response is found for coinciding parameters. Then critical values are found for which the parameterized mutual information has extrema. First results on multi-modality matching show that different parameter values instead of coinciding values yield the best response for the parameterized mutual information.     

Theoretical aspects of optimal autocorrelation synthesis

In this paper we consider several theoretical aspects of signal design when the signal-matched filter output is required to possess certain optimality properties. The problem is formulated as a constrained minimax problem in function space. Necessary conditions for optimality are obtained, and a useful numerical algorithm is derived. Several uncertainty-principle-type results are also established.     

Social systems that marginalize the psychological and organizational aspects of information technology

This polemical paper is concerned with identifying the factors which serve to marginalize the psychological and organizational aspects of the development, implementation and use of information technology. Five sets of factors are delineated, those associated with: end-users; suppliers, 'experts' and the development process; management and organizations; research and development; and education and understanding. The analysis points to the presence of a complex, mutually reinforcing set of social systems acting to marginalize psychological and organizational concerns, and helps explain the massive difficulties in achieving change. It also reveals that psychological and organizational expertise tends to be supply-pushed rather than demand-pulled into the community. This may help explain why many working in this field fail to practise the user-centred approaches that we preach.