Chapter 7: Multimedia
Introduction
Multimedia consist of two words ‘Multi’ and ‘Media’, Where multi means many and media means way/medium of expressing information. Hence, multimedia is the way of expressing information in different forms. The information can be expressed in either text, audio, video, graphics and animation. We use several forms of media for better understanding and effective communication. By using multimedia any information can be illustrated in greater depth.
Advantages of Multimedia
- It helps to make communication much more effective
- It enhances the level of understanding in any particular topic.
- Games, Cartoons, movies are made more effective and realistic by using multimedia.
- It makes teaching and learning process much more interesting and intuitive.
- Virtual reality and simulation has become more realistic.
Components/Elements of Multimedia
- Text: It is the collection of alpha numeric values or any characters. It can be a word, single line or a paragraph. We can create and customize text by using several text editor or word processor such as MS-Word, Notepad etc. It is the basic form or way of expressing information. By using multimedia software we can customize the text by giving several size, color, type, style etc. Extension of text documents are .docx, .txt etc.
- Graphics/Images: ”A picture is of thousand words" which means picture can describe things more than a text. Graphics generally refers to image or pictures. The smallest element of picture is called Pixel (Picture Element). Hence the quality of image or picture is denoted by number of pixel available in that picture, Generally termed as resolution. We use several multimedia software such as Adobe Photo shop, Corel draw, Adobe indesign etc. Extension of images are .jpeg, .png etc.
- Audio: Audio is the one of the important components of multimedia. It gives the sensation of hearing. Audio can be used to enhance the understanding level in any particular topic. Audio can be human voice, instrument notes, natural sound, digitally synthesized sound and many more. In these days Audio can be transfer from one place to another by converting it into digital signal. FM radio use this component to express their information. Several multimedia software such as windows media player can be used to play audio. Extension of audio are .mp3, .wma etc.
- Video: The video is the running frames of static pictures that means video are generated by capturing maximum number of images in unit time. Frame per second [FPS] is the term widely used to describe the smoothness of a video. Generally there are 15-25 frame per seconds, to generate smooth movement in video. But 30 and 60 FPS are the widely used standard in different devices. We can use different multimedia software such as iMovie, Final cut pro, Filmora etc to edit and customize our video. Extension of video are .mp4, .mpeg etc.
- Animation: Animation is the sequence of vector(Computer Generated) image displayed in rapid succession to provide visual effects. These image are computer based images. The animation is created to express ideas where complex explanation should be effectively deliver. These components are widely used in movie industry, and in other entertainment industry. Animation can be either 2D or 3D. 3D animation are more realistic in nature. So, different movies used 3D animation to express information which are not feasible in real life. We use several multimedia software such as Maya animation, Auto CAD, Macromedia flash etc. Extension of animation are .flv, .gif etc.
Questions and Answers
1. What is Multimedia?
Multimedia is the integration of different media types such as text, images, audio, video, and animation to convey information or create an interactive experience.
2. What are the basic components of multimedia?
Multimedia consists of the following components:
- Text: Written content providing information.
- Images: Graphics, illustrations, and photos.
- Audio: Sounds, music, and voice recordings.
- Video: Moving visuals or film clips.
- Animation: Motion graphics or interactive elements.
3. What is the role of text in multimedia?
Text is used to convey information, provide descriptions, and enhance understanding in multimedia applications.
Examples:
- News articles
- Product descriptions
- Captions in videos
4. How are images used in multimedia?
Images enhance visual appeal and help convey messages more effectively.
Common image formats:
- JPEG: Compressed images with good quality.
- PNG: Lossless images with transparency.
- GIF: Animated or static images.
5. What is the importance of audio in multimedia?
Audio enhances user experience by adding voice, music, or sound effects.
Common audio formats:
- MP3: Compressed audio format.
- WAV: High-quality uncompressed audio.
- AAC: Advanced compressed audio.
6. How is video used in multimedia?
Video combines moving images with sound to convey information effectively.
Common video formats:
- MP4: Widely used, high-quality compressed format.
- AVI: Older format with larger file sizes.
- MKV: High-quality video with multiple audio tracks.
7. What is animation in multimedia?
Animation is the process of creating motion in images or objects to make them visually engaging.
Types of animations:
- 2D Animation: Uses flat images (e.g., cartoons).
- 3D Animation: Uses three-dimensional models.
- Stop Motion: Frame-by-frame photography.
8. What are some multimedia applications?
Multimedia is used in various fields such as:
- Education: E-learning and online courses.
- Entertainment: Movies, games, and music.
- Advertising: Promotional videos and digital marketing.
- Communication: Video conferencing and social media.
9. What are multimedia authoring tools?
Multimedia authoring tools help create, edit, and manage multimedia content.
Examples:
- Adobe Photoshop: Image editing.
- Adobe Premiere Pro: Video editing.
- Audacity: Audio editing.
- Blender: 3D animation.
10. What is the future of multimedia?
The future of multimedia includes advancements in technologies such as:
- Virtual Reality (VR): Immersive digital experiences.
- Augmented Reality (AR): Interactive real-world experiences.
- AI-Generated Content: Machine learning in media creation.