Multimedia and ICT
- 2. Rich Content in the Online Environment and the User Experience Humans interact with technology in many ways with the use of desktop application, internet browser, handheld computers, cellphones, and others. Technology serves , assists, and cooperates with humans to complement enrich normal activities (for example , education, health, communication, services, business, etc.) with minimal explicit concern or effort on the human part.
- 3. MULTIMEDIA and ICT ICT or information and communication technology covers any communication device or application including radio, television , cellular phones, computer and network hardware and software , satellite systems, as well as various services and applications. MULTIMEDIA is a combination of text, animated graphics, video and sound delivered to you via electronic means. It is what appeals to users for entertainment, learning and research.
- 4. USES of MULTIMEDIA EDUCATION- Multimedia is use to create and produce computer-based training (CBT) materials and courses , including online and CD based encyclopedias. It has been observed that learning is faster and easier with a properly assembled multimedia of voice , video, graphics, and texts. EDUTAINMENT is a term that pertains to the combination of education and entertainment which also finds acceptance to children of today who are exposed to games and entertainment. ENTERTAINMENT- multimedia use is very much in any modern movies and animations to develop special effects and virtual worlds. Computer games also use enormous multimedia content and features to make them more exciting and relevant. Interactive multimedia is a term applied to multimedia applications that allow users to take part, contribute and participate in online games. Business- PowerPoint presentation , that uses all kinds of media , are able to effectively convey information to clients, superiors, co-workers owners, and the general public. Medicine – Multimedia is very important in medicine to train future doctors and practitioner , for example, in micro and virtual surgery. Multimedia can also simulate the effects of virtues and disease to human body to clearly find and develop ways of preventing them.
- 5. Mathematics and Scientific Research – Multimedia issued to simulate and model various situations that would otherwise be difficult to grasp in real time, as in the case of an erupting volcano or tornado, wherein after effects can be presented to colleagues or to the learning public. Mathematical equations and formulas that can be represented as visual models can easily be viewed by the use of multimedia. Chemical and molecular models can be also use multimedia to present, manipulate, and create new substances. Government- Multimedia is used by governments around the world to convey information, procedures, and regulations for their citizens and visitors. Multimedia also finds uses in military, engineering, and many other fields. Multimedia and Interactivity - Multimedia applications can include various types of media used together (for example, text, images, video, audio, animation etc.) the primary characteristic of a multimedia system is the use of more than one kind of media to deliver content and functionality. A multimedia application normally involves programming code and enhances user interaction where the computer responds to the user’s actions.
- 6. Types of Rich and Multimedia Content 1. Text- contents express specific information. 2. Images- make the content more visually appealing. Common image file formats used are JPEG, PNG, GIF, and TIFF. Image can also be interactive like buttons, navigational menus, and backgrounds. 3. Video- adds more attraction to users. Common digital video formats are Flash, MPEG, AVI, WMV, and QuickTime. Video can be embedded within the content or linked stored outside the content. 4. Audio- aids interactions with the user, it can also be added as background .Common audio formats are MP3, WMA, Wave , MIDI, and RealAudio. Audio can be embedded or streamed. 5. Animation- can include interactive effects which allow users interact with the use of mouse or keyboard. Common animation formats are FLV, SWF, and ActionScript codes for animated and interactive effects.
- 7. 6. Online games- are universal in modern gaming platforms, including PCs consoles and mobile devices. 7. Online tests and courseware- are design for teachers and students. Courseware can include materials for computer-based training, interactive tutorials, distance learning, or home schooling. 8. Web-, game-,pod-, and vod-casting- A podcast is an episodic series of digital media files which an user can set up so that new episodes are automatically downloaded via web syndication to the user’s own local computer or portable media player. A webcast is a media presentation distributed over the Internet using streaming media technology to distribute a single content source to many simultaneous listeners/viewers, distributed live or on demand. Vodcasting is the same principle as Podcasting with the addiction of video.
- 8. Digital Multimedia - Digital Multimedia is the field concerned with the computer-controlled integration of text, graphics, still and moving images, animations, sounds, and any other medium ere every type of information can be presented stored, transmitted, and process digitally. Computer Hardware for Animation and Multimedia Computer hardware to be used in handling animation and multimedia may require more powerful components. Both of these application need a lotof memory to process which means that the computer hard disc and RAM should be bigger than computers that are just used for the internet and word processing. A video card installed in the computer may also help when handling videos and animations.
- 9. Digital Cameras Modern digital cameras have the capability to take both pictures and videos. The two common types of digital cameras are: 1.Compact Digital Cameras – is called “point and shoot “ camera. It is lightweight, simple and easy to use. Mobile phones with camera are included in this category. 2. Digital Single-Lens Reflects (DSLR) Cameras preferred by professional photographers because of its high quality photographs and interchangeable lenses.
- 10. Video Cameras Transferring video from the above device to your computer may vary depending on the storage media of the device. The three common types of video cameras are: 1. Professional Video Camera is a high-end video recording device that records high quality videos. It is usually used for television. 2. Camcorder is a portable video camera and video recorder in one that is why it is called Camcorder. It is a consumer device and many individuals own one for personal video recording. Modern Camcorders employ optical discs, memory cards, or hard discs as storage media. 3. Digital Camera can record video including those found of mobile phones, PDAs, web camera, and digital camera.
- 11. Sources of Videos 1. Personal and Professional Videos are created using your home video. Even your digital camera or cellphone with video capability can be used as a video source for your projects. You can also hire professionals to do it for you, using high end equipment that deliver quality output for a project or event. These two options ensure that you own the copyright of the work. 2. Online Video Clips are videos available for purchase from the internet. You can pay for the right to use these clips. Online sourcing of video clips may be cheaper in many situations, where its contents may require you to travel and spend much more if you do so. 3. Computer-Generated Pictures are videos made with the use of computers. You can create them using programs that come with your operating system. Such as the case of MS Windows that comes with MS movie maker. MS Movie Maker is a simple program that allows you to create videos your stored pictures and other resources within your computer.
- 12. Audio and Video File Formats Audio Files -Audio File format is a kind of file used as a means of storing digital audio data on a computer. An audio file codec is needed to properly store the file to the preferred format and play the audio. A codec is computer program or device used to encode and decode any digital data such as an audio file to its specific file format. There are several audio formats available . The following are the most popular:
- 14. COMMON AUDIO FILE FORMATS Filename Extension .aif .midi .wav Description Audio Interchange File (AIF) format is an audio file format develop by apple similar to a .wav file. Playable using Apple Quicktime and Apple iTunes. Musical Instrument Digital Interface (MIDI) files are recording of digital musical tracks made possible by the interface of musical instruments to the computer .The MIDI files include the notes played, the temp[o, instrument being played ,loudness and other musical parameters .MIDI music is easily edited using the mouse click and drag action. Waveform audio file format is an audio file format for storing uncompressed waveform data used for CD-quality audio developed mainly for Windows-based computers.
- 15. .mp3 .wma MP3 audio file (MPEG-1 Audio Layer 3) is a compressed audio format developed by Moving Pictures Experts Group (MPEG) to store music on a computer at high audio quality but with a file size that is 1/10 the size of .wav. The quality of a mp3 file is proportional to the bit rate compression which is available in 128, 160, 192, and 256 kilobytes per second (kpbs). Windows Media Audio (WMA) file is the audio format developed by Microsoft. WMA has four distincts codecs, 1)The original WMA which is similar to MP3; 2) WMA Pro, supports multichannel and high quality audio;3) WMA Lossless, which compresses audio data but retain audio quality and fidelity; and 4) WMA Voice for voice recroding and other voice content.
- 16. Video Files A video file is a kind of file use as a means of storing digital video files on a computer. A video codec is use to contain the video for later playback and editing. Advances in video file container formats are focused on high quality video streaming for use over the internet. The following video formats are the most popular:
- 17. COMMON VIDEO FILE FORMATS Filename Extension .avi .flv .mkv Description Audio Video Interleave (AVI) file , one of the most popular video containers formats developed by Microsoft, can be played using various video players. Flash Video file is a video container format using the Adobe Flash Player used to distribute video over the Internet. Flash Video is very popular on the internet because it is being used by YouTube, Google Video, Yahoo Video, and many others. Matroska Video file is an open video container format and can hold an unlimited number of video, audio and pictures in a single file. It is ideal as storage for High Definition video files. MKV files are similar to .AVI and .MOV but its open and free format is an advantage . MKV files can be played in Palm and Pocket PCs.
- 18. .mov .mp4 .rm Apple QuickTime Moviei s a proprietary multimedia container format for music ,movies, and other video files developed by Apple Computer and are playable in Mac and Windows platforms. MP4 video file (mpeg-4) is a multimedia container format used to store audio and video as defined by MPEG. MP4 supports video streaming and sharing over the internet. Real Media (RM) file is a media file container format developed and used by RealPlayer. RM files can be downloaded or can support video streaming over the internet.
- 19. .swf .vob .wmv Small Web Format (SWF) OR Flash Movie is a file format for Vector Graphics animation and is the dominant format on the Web. Flash movies are created by Macromedia Flash but can be also generated by other programs. Flash movies are playable using the Adobe Flash Player which is downloadable free from adobe site. DVD Video Object file is a DVD-video container format based on MPEG-2 Program. Windows Media Video (WMV) file is a proprietary video container format base on Microsoft’s Advanced System Format (ASF) and is encoded using WMV codec. Playable primarily with Microsoft’s Windows Media Player but other players maybe able to play WMV videos as well.
- 21. QUIZ QUESTIONS: 1. What is the topic about? 2. What is the ICT for you? 3. What is the MULTIMEDIA for you? 4-6.Give at least 3 examples of Uses of Multimedia. 7-8. Give at least 2 examples of types of rich & Multimedia Content. 9. _______ is a kind of file used as a means of storing digital audio data on a computer? 10. _______ is a kind of file used as a means of storing digital video on a computer?
- 22. ANSWERS: 1. Multimedia and ICT 2. 3. 4-6. Education , Entertainment, Business, Medicine, Mathematics and Scientific Research, Government 7-8. Text, Images, Video, Audio, Animation , Online games, Online texts and courseware, Web-,game-,pod-, and vod casting