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1.
介绍了非线性编辑和多媒体非线性编辑系统的概念及多媒体非线性编辑系统的优势,重点探讨了多媒体非线性编辑系统在各级各类学校电视教材制作中的具体应用。  相似文献   

2.
介绍了非线性编辑和多媒体非线性编辑系统的概念以及多媒体非线性编辑系统的优势,重点探讨了多媒体非线性编辑系统在各级各类学校电视教材制作中的具体应用.  相似文献   

3.
杨欣颖 《文教资料》2006,(21):177-178
在多媒体课件中,视频是一种重要的多媒体元素。利用数字视频技术对视频材料进行编辑制作和加工处理,是多媒体课件开发中的重要一环。本文探讨了非线性视频技术在多媒体课件制作中的应用,着重从非线性编辑技术的特点与构成、视频采集与压缩、非线性视频编辑等方面对多媒体课件中的视频处理进行了阐述。  相似文献   

4.
本文探讨了视频编辑系统中非线性编辑技术在多媒体课件制作中的应用,重点对视频采集、压缩、线性与非线性视频编辑等进行了阐述.  相似文献   

5.
阐述了多媒体非线性编辑系统的特点,分析了目前流行的数据压缩方式,并结合学校电教的特点以及自己的实践经验,对学校电教部门如何合理配置非线性编辑系统进行了探讨,同时指出了非线性编辑系统的发展方向。  相似文献   

6.
数字化技术将大大地改善广播电视和多媒体网络信息传输系统的品质,为远程教育提供了新的传输手段。 非线性编辑系统正逐步,也必将取代传统的模拟信号的在线编辑手段。进而加快网上教育资源的数量和质量。选择 经济实用的非线性编辑系统,加强网上软件制作的硬件建设,提高远程教育服务能力,是面临数字化设备商品化形 势的一个需要考虑的问题。  相似文献   

7.
随着多媒体技术和计算机技术的不断发展,非线性编辑技术经历了产生、发展和完善阶段。本文首先分析了非线性编辑系统的软硬件构成,然后对数字音视频处理的关键技术进行了阐述,最后介绍了利用非线性编辑技术制作网络课件中音视频元素的操作过程。  相似文献   

8.
多媒体技术的应用──数字非线性视音频编辑系统孙昌达正当电视节目制作设备从模拟复合走向模拟分量,并进而向数字分量过渡之际,以计算机多媒体技术为基础的全数字视频设备异军突起,日益为广播电视界所关注,其中最有代表性的当首推“非线性视音频编辑系统”。本文就数...  相似文献   

9.
张逸军 《西江大学学报》2002,23(5):90-92,89
阐述了多媒体非线性编辑系统的特点和数字化技术,介绍了它在教育电视节目制作中的应用,并就实际操作中应注意的问题提出了自已的观点。  相似文献   

10.
计算机技术的发展和多媒体技术的广泛应用,使得传统的线性编辑系统受到了较大的冲击,非线性编辑系统正以传统编辑方式无可比拟的优越性,在电视节目制作中发挥越来越重要的作用.  相似文献   

11.
With advances in information and communication technology, interactive multimedia learning systems are widely used to support teaching and learning. However, as human factors vary across users, they may prefer the design of interactive multimedia learning systems differently. To have a deep understanding of the influences of human factors, we apply a data mining approach to the investigation of users’ preferences in using interactive multimedia learning systems. More specifically, a clustering technique named K-modes is used to group users’ preferences. The results indicate that users’ preferences could be divided into four groups where computer experience is a key human factor that influences their preferences. Implications for the development of interactive multimedia learning systems are also discussed.  相似文献   

12.
The purpose of this paper is to present a participatory multimedia learning model that can be used in designing multimedia learning environments that support an active learning process and creative participation. Participatory multimedia learning can be defined as learning with systems that enable learners to produce part of the learning materials themselves. The aim of the model is to represent the human information processing system and to support the transformation of free cognitive resources into a germane cognitive load needed for knowledge construction. The paper also elaborates on the results of an empirical study examining the effectiveness of student-generated illustrations. Finnish elementary school students (N = 187) learned about the human immune system by interacting with multimedia learning materials. Students performed better on a retention test when they generated their own illustrations by drawing and when explanations were presented as animations, compared to students who received only textual material or generated illustrations from images offered.  相似文献   

13.
The addition of animated pedagogical agents (APAs) in computer-assisted learning (CAL) systems could successfully enhance students' learning motivation and engagement in learning activities. Conventionally, the APA incorporated multimedia materials are constructed through the cooperation of teachers and software programmers. However, the thinking and technical gap between two roles, a concept/content provider (teacher) and an implementer (software programmer), may lead to the concept distortion and loss in the final teaching material implementations. This often results in preventing a teacher from preparing his or her own APA-based multimedia learning systems. This study aims to develop a courseware to facilitate the CAL through the combination of the two roles into a single one and then teachers can use it freely by themselves. The courseware can help teachers to develop appropriate multimedia instructional materials incorporating APAs, which attracts students' attention and enhances their interest in learning. Furthermore, in this study two separate trial experiments were conducted to measure the teachers' satisfaction with the courseware and students' learning motivation after using APA-based multimedia learning systems. The results show that the participating teachers were satisfied with the courseware and would like to apply it in their instruction. Moreover, the participating students were strongly motivated by the customized APA-based multimedia learning systems. Therefore, the proposed courseware could give teachers a good opportunity to add pedagogical value to the curriculum, so that students' learning interest and motivation could be enhanced.  相似文献   

14.
随着信息技术的发展,多媒体与网络化教学成为现代教育的主流。多媒体教学中学习材料的情绪因素受到研究者越来越多的关注。国内外学者已开展了大量实验与准实验研究,探索在使用颜色、形状、拟人化等多种视觉元素设计的学习材料中,视觉情绪因素对学习者学习效果的影响,结论尚存争议。研究采用元分析方法,对二十年来国内外有关视觉情绪设计影响学习效果的31篇文献进行梳理与分析,并进一步从学习材料呈现步调、学习者学段和实验时长三个调节变量的影响维度进行深入探讨。研究发现:整体而言,视觉情绪设计能够促进反映学习者学习效果的保持成绩、理解成绩和迁移成绩的提高;不同呈现步调、学习者学段和实验时长对学习者学习效果的调节作用组间差异不显著。研究得到的启示:多媒体学习材料中使用饱和、高亮暖色、图片及拟人化设计,对于多媒体学习认知过程和学习效果有益。最后,在深入阅读文献的基础上,指出多媒体学习情绪设计研究中存在的问题及进一步研究的方向。  相似文献   

15.
Educational technology research and development - Signals (or cues) are added to multimedia learning materials to guide learners’ attention to critical elements of the materials. Yet,...  相似文献   

16.
This article presents an overview perspective on the potential benefits of applying multimedia technology to redesign and invigorate the career-long performance assessment and professional learning of school leaders. Funded design and development efforts of one multimedia project—the Administrator Case Simulation (ACS) Multimedia Library—focusing on the professional assessment and development of school principals involved in collaborative school leadership are highlighted. Project research teams at the ACS Multimedia Lab have focused in the past seven years on using available multimedia technologies to develop school leadership assessment and organizational learning case simulation resources for school principals and other school leaders. This article provides an overview of the multimedia case simulation concept, describes collaborative R&D project efforts involving regional and state school leaders, highlights multimedia case design features, and discusses implications of technology-integrated case designs for informing personnel assessment and evaluation programs and for enhancing the reflective thinking, decision making, and professional learning of school leaders. Finally, recommendations are offered for engaging in further research and development efforts using the integrated systems professional learning approach presented, and for creatively expanding technology-integrated case simulation designs to develop similar professional assessment and learning resources for all school leaders.  相似文献   

17.
高校排球教学采用的传统文本教材已经无法满足教学的需要,多媒体电子教材将多种媒体整合起来,形成一个综合的多媒体学习系统,可方便学生课下自学和教师课堂授课使用。电子教材充分发挥多媒体技术的教学优势,采用多媒体手段科学恰当地呈现和优化传统教学媒体难以表述的教学内容,达到学习效果最优化的目的。研究从排球多媒体电子教材建设需求分析入手,在排球技术多媒体电子教材设计思想的指导下,进行完整的教学系统设计,开发排球技术多媒体电子教材,以满足教师和学生"教"与"学"的需要。  相似文献   

18.
Reading has been regarded as a medium for learning science, revealing the importance of enhancing learners’ reading competence in science education. The critical features of science texts are their multiple representations, such as text and visual elements, which assist the representation of science concepts. A multimedia learning environment can present relevant materials in various formats and help students to process the materials in meaningful ways, for example, by integrating learning materials with relevant prior concepts, and organizing them into a consistent and coherent cognitive structure. However, some issues with multimedia instructional design have been proposed, such as students’ cognitive load and learning motivations. In this study, an augmented reality-based science learning system was developed based on the contiguity principle of multimedia learning in order to promote students’ science learning. Moreover, an experiment was conducted on a natural science course in an elementary school to assess the effectiveness of the implemented system on students’ learning. The experimental results display that the students learning with this approach found made significant gains in their learning achievements and motivations compared to those learning science with conventional multimedia science learning; moreover, their perceptions of extraneous cognitive load were significantly reduced during the learning activity.  相似文献   

19.
利用网络资源辅助远程英语学习   总被引:4,自引:0,他引:4  
网络技术的不断发展,为信息的迅速传递提供了有利的条件,特别是使得音频和视频等多媒体的传递成为了可能。在国际互联网上存在的大量英语学习网站,部分解决了中国远程学习没有英语学习环境的问题,是远程英语学习的有益补充。  相似文献   

20.
多媒体辅助外语教学已成为外语教学发展的必然趋势.多媒体辅助外语教学具有多种功能与作用多媒体创设外语教学情景;调动多种感官,提高学习效率;体现以学生为中心的个别化教学;培养创造力和协作能力;培养跨文化交际能力;信息的多样化和科学性.  相似文献   

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