What Are the Different Types of Multimedia Technology?

Multimedia technology refers to the technology that comprehensively processes and manages various media information such as text, data, graphics, images, animations, and sounds through computers, so that users can interact with computers in real time through multiple senses. technology.

Multimedia technology (Multimedia Technology) is a technology that uses computers to comprehensively process text, graphics, images, sounds, animations, videos, and other information, establish logical relationships and human-computer interaction.

The object of real multimedia technology is the product of computer technology, and other simple things, such as movies, television, audio, etc., do not belong to the scope of multimedia technology.

Media In the computer industry, media has two meanings: one refers to the carrier of information, such as language, text, image, video, audio, etc .; the other refers to the carrier of stored information, such as

Multimedia includes basic elements such as text, graphics, still images, sound, animation, and video clips. In the design of multimedia teaching courseware, that is, starting from the role and characteristics of these elements, under the guidance of pedagogy, psychology and other principles, fully conceive and organize multimedia elements, give full play to the advantages of various media elements, and provide different types of learning Of learners provide different learning media information, and deliver educational and teaching information to learners from multiple media channels.

1.Text

(1) The role of text

Multimedia teaching courseware can display certain education and teaching information to students through texts. It can also provide certain help and guidance information when students encounter difficulties in autonomous learning with multimedia, so that students' learning can continue smoothly. Some fully-functional teaching The software can also provide certain learning evaluation information and corresponding guidance information to the learning based on the learning results of the students and the feedback information obtained from the students.

In addition, most teaching software will use text to provide certain help and navigation information for the use of the software, which enhances the friendliness and ease of use of the software. Software users can use the on-screen help, without special training, Navigation information uses operational learning software. Finally, in some teaching software, the teaching software can obtain certain feedback information from the learners, realize the two-way flow of information between the information provider and the receiver, and strengthen the feedback degree of the learning process.

(2) Characteristics of text information

The text information on the computer screen can be read again and again and understood easily, without time and space restrictions. However, the text information displayed on the reading screen, especially when the amount of information is large, can easily cause visual fatigue and make learners bored. In addition, text information has a certain degree of abstraction. When reading, readers must be able to "decode", that is, abstract text is restored to the corresponding thing. This requires users of multimedia teaching software to have a certain level of abstract thinking ability and Imagination ability, different readers have different understanding of the text being read.

(3) Text development and design

Development of ordinary text. There are generally two methods for developing ordinary text. If the text is large, you can use a special word processing program to input processing, such as: Microsoft Word, Word Pad, etc .; if there are not many words, use the characters of the multimedia creation software itself An editor is enough.

Graphic text development. Microsoft Office

Multimedia technology

In addition to the diversification of information carriers, multimedia technology also has the following key characteristics:

Integration

Using digital signals, it can comprehensively process a variety of information such as text, sound, graphics, animation, images, videos, and organically combine these different types of information.

Interactivity

Information is organized in a hypermedia structure, which facilitates human-computer interaction. In other words, people can actively choose and accept information according to their own thinking habits and their own wishes, and draw up a path for viewing content.

Intelligence

Provides an easy-to-operate and very friendly interface, making the computer more intuitive, more convenient, more friendly, and more humane.

Easy scalability

It can be easily connected with various external devices to achieve data exchange, monitoring and control and other functions. In addition, the use of digital information effectively solves the problem of data distortion during processing and transmission ^[3]

Multimedia computer technology generally can process text, data, and graphics. In addition to the above types of information, multimedia computers can also process information such as images, sounds, animations, and videos. This has created a new era in computer applications.

The significance of multimedia technology applications lies in:

The computer can process the most direct and universal information in human life, which has greatly expanded the field of computer applications and functions.

Make the human-computer interaction interface and means of the computer system more friendly and convenient, and non-professionals can conveniently use and operate the computer.

· Multimedia technology tightly combines the three major information processing technologies of audiovisual technology, computer technology and communication technology, laying a new foundation for the development of information processing technology. The development of multimedia technology has a history of many years. So far, the basic technologies of sound, video, and image compression have gradually matured, and products have entered the market. Popular technologies such as

Multimedia is a human-machine interactive information exchange and communication medium that integrates more than two types of media, and has the following characteristics:

1. Diversity of information carriers : Compared with computers, it means the diversity of information media.

2. The interactivity of multimedia means that the user can interact with various information media of the computer to provide users with a more effective means of controlling and using information.

3. Integration refers to the comprehensive processing of a variety of information media centered on a computer, which includes the integration of information media and the integration of equipment that processes these media.

4. Digitization -Media exists in digital form.

5. Real-time -sound, dynamic image (video) changes over time.

Characteristics of multimedia technology

1. Ability to complete content-related

There are many multimedia products on the market. The hardware products mainly include the following categories: sound cards, speech synthesis cards, CD-ROMs, video cards, video encoding cards, still image compression cards, and dynamic image compression cards. Software products include multimedia application systems Production tools, multimedia information consulting systems, multimedia databases, etc. When applying, choose the right product according to different requirements.

With the continuous updating of network technologies and standards, how to launch new products with limited resources and faster speeds is a big challenge facing many network communication manufacturers.

The era of solo fighting is long gone. Opening up is the mainstream of this era. Alliances and alliances represent a wise choice. For developers, integrators and equipment vendors around the world, a harmonious environment needs to be established for them to work together to provide users with IP-based multimedia applications and services.

For NMS, this is exactly the mission of the company. As a partner with more than 20 years of industry-leading communications technology solutions and reputation, NMS is uniquely positioned to provide high productivity and establish a win-win partnership. NMS brings together elites from the fields of VoIP, video, mobile content services and IMS to integrate the best solutions for users.

Deficiencies of the first generation of media servers

It is undoubtedly the core value-added business that everyone is optimistic about. As a media server, it can provide a total controllable solution, which can significantly shorten the application system development cycle. However, the current first-generation application solutions have not been able to meet some of the key requirements of the market. Early media server solutions generally consisted of device-level components with independent intellectual property rights. They provided predefined media and protocol support, network interface options, and their interfaces could only provide VoIP network processing functions.

The limitations of the first-generation media application server are: support for limited types of hardware platforms and operating systems, which cannot meet the basic requirements of telecommunication operators for general support technologies; lack of a conversion interface between TDM and SS7, so that application solutions cannot be simultaneously Supports current network architecture, newly emerging VoIP network and future-oriented IMS (IP Multimedia Subsystem) architecture; in addition, it is poorly modifiable and cannot be quickly modified to support some important old protocol standards and voice encoders.

With the development and implementation of various new IMS-based application systems, the importance of supporting existing network facilities and old protocol standards has become increasingly prominent. The media server needs to interoperate with the existing intelligent network. During the transition period from the intelligent network to the IMS architecture, the IMS service provided by the media server will coexist with other existing application services in parallel for a considerable period of time.

As a result, the market is calling for the arrival of a new generation of media server products.

Different "Vision"

NMS recently launched the new Vision series of media server and gateway products, which represents a new breakthrough in the field of media server applications. Dr. George Kontopidis, senior vice president of the product and technology strategy group of NMS's Platform Solutions Business Unit, said that Vision, as a full range of application-oriented products, can help OEMs and application vendors to quickly develop and configure converged multimedia application systems. Vision products help customers transmit media information to application systems through the network and effectively solve some of the shortcomings of the first generation of media application solutions.

Vision Series Media Servers and Gateways

NMS's Vision series of media servers and gateways can effectively overcome various deficiencies in current application solutions. It uses a hierarchical structure design, is based on NMS components, has configurable and adaptable features, and supports open standards.

Vision Media Server

As a basic member of the Vision series, the Vision Media Server can support a wide range of applications, including network publishing, messaging applications, prepaid card processing, conference applications, self-service, voice portals, call centers, IP and mobile switching centers.

The Vision Media Server can manage telecommunication user interfaces using the remote control method of the application system, and provides powerful media processing functions such as IVR, conference applications, transcoding, video and fax.

Vision VoiceXML server

Vision VoiceXML server as a launched solution can be used to develop voice application systems in ISDN and SS7 network environments. It supports the VoiceXML 2.0 industry standard and XML-based extension standards, and can provide outbound dialing, caller authorization, and detailed call log collection without modifying the VoiceXML standard.

Vision video encoding converter

The Vision video encoder supports 3G-324M and IP broadband environments, and includes

With the continuous deepening of teaching reform, test-oriented education is gradually transitioning to quality education, and traditional teaching methods have been unable to keep up with the pace of education. Modern multimedia technology entered the school gate with charming style and entered the classroom. Realizing the modernization of teaching methods is an urgent task in junior high school physics classroom teaching reform, and it is imperative. Only by giving full play to the advantages of multimedia technology for physics classroom teaching can the optimization of junior middle school physics classroom teaching be realized. Through many years of teaching practice, I believe that using multimedia technology to optimize physics classroom teaching can play a positive role in the following aspects:

I. Using multimedia technology to set the context can stimulate learning hobby and play the main role of students

"The best stimulus to learning is the hobby of what you learn," said Brunner, an American educator. China's educator Confucius also said, "The one who knows is worse than the one who knows better, and the one who knows better than the one who knows well." The power of hobby is tremendous. As a teacher, we must fully explore the hobby factors and

Multimedia technology Multimedia technology involves a wide range, including:

Audio technology: audio sampling, compression, synthesis and processing, speech recognition, etc.

Multimedia technology hologram

Holographic images are actually the recording and reproduction of real three-dimensional images. The general three-dimensional map only realizes the three-dimensional feeling of the human eye through composition and color light and shade changes on a two-dimensional plane. The hologram generated by the holographic stereo projection contains information such as the size, shape, brightness and contrast of the recorded object. Parallax. Observers can observe different images of an image by moving back and forth, left and right, and up and down as if a real object were there. Brilliant audio-visual digital technology holographic projection technology continuously enriches the visual experience in the form, and continuously meets the content and content of interaction. It brings viewers the three-dimensional special effects of watching, and makes the audience feel completely in the air. Holographic imaging technology is a new visual somatosensory brought by the combination of the dual charm of technology and art on the basis of digital technology innovation and development. The content can be made at will, which is suitable for individual items with rich details or rich internal structures, such as watches, Famous cars, jewelry, industrial products, but also characters, cartoons, etc. With the continuous innovation and popularization of technology, the maturity of holographic images is getting higher and higher, and the scope of applications is getting wider and wider. basic information

Title:

multimedia technology multimedia technology

ISBN: 7-113-10930

Author: Su Zhou

Price: 26.00 yuan

Publication date: 2010.03

Applicable specialty: majors in electronic information

Publisher: China Railway Publishing House

Introduction to multimedia technology content

Multimedia technology has a wide range of applications and a wide range of fields, and people have high expectations. The content of this book is comprehensive, the structure is reasonable, the language is fluent, and it has the necessary technical depth, which can meet the needs of readers of different starting points and different levels to learn multimedia technology.

The book is divided into three modules: Introduction to Multimedia Applications (chapters 1 and 2), Multimedia Technology Basics (chapters 3 to 7), Multimedia Production (chapters 8 to 12), and Multimedia Training Summary (chapter 13), including multimedia and Multimedia computer, data compression, optical storage, digital audio, digital graphic images, and digital video technologies, including mainstream multimedia development tool software such as PowerPoint, Photoshop, Flash, and Authorware. Chapter 13 is a summary of multimedia technology training. The book uses a series of practical training exercises using multimedia development tools to integrate the concept and theoretical knowledge of multimedia technology into practice, helping readers to deepen their understanding and understanding of multimedia technology. ^[7] .