Thursday, May 16, 2019
Multimedia Basics Essay
Application of mul whiledia system multimedia system finds its application program in various areas including, advertisements, art, education, entertainment, engineering, medicine, mathematics, business, and scientific research applications. A few application areas of multimedia are listed belowEntertainment and Fine ArtsIn addition, multimedia is heavily used in the entertainment industry, especially to develop special effects in movies and animations. Multimedia games are a touristed pastime and are software system programs available either as CD-ROMs or online. Some motion picture games excessively use multimedia features. Multimedia applications that allow users to actively participate instead of just sitting by as passive recipients of entropy are called Interactive Multimedia.EducationIn Education, multimedia is used to publish computer-based training courses (popularly called CBTs) and reference books like encyclopedia. A CBT lets the user go through a series of presen tations, school text about a particular topic, and associated illustrations in various information formats. Edutainment is an informal term used to follow combining education with entertainment, especially multimedia entertainment.EngineeringSoftware engineers may use multimedia in Computer Simulations for anything from entertainment to training such(prenominal) as military or industrial training. Multimedia for software interfaces are often done as collaboration between creative professionals and software engineers.IndustryIn the Industrial sector, multimedia is used as a way to help present information to shareholders, superiors and coworkers. Multimedia is also helpful for providing employee training, advertising and selling products all over the world via virtually unlimited web-based technologies.numerical and Scientific ResearchIn Mathematical and Scientific Research, multimedia is mainly used for modeling and simulation. For example, a scientist can look at a molecular mode l of a particular substance and moderate it to arrive at a new substance. Representative research can be found in journals such as the Journal of Multimedia.MedicineIn Medicine, doctors can get trained by sounding at a virtual surgery or they can simulate how the human body is stirred by diseases spread by viruses and bacteria and then develop techniques to prevent it.Multimedia System computer computer architectureMultimedia encompasses a large variety of technologies and integration of multiple architectures interacting in real time. All of these multimedia capabilities must integrate with the standard user interfaces such as Microsoft Windows. The following figure describes the architecture of a multimedia workstation environment.From the above figure the left side is very similar to non-multimedia systems. Right side shows the architecture of multimedia supporting system. Multimedia Extensions is used to enhance the speed of process. The add-on multimedia devices and peripher als include scanner, video camera, VCR, and sound equipment along with their associated device controllers. For each of these special devices, a special software device device driver is needed to provide the interface from the application to the device. The graphical user interface designed primarily for windows managed by applications at fixed resolution require control to extensions to support applications such as full-motion video or remote desktop.Evolving Technologies for Multimedia SystemsMultimedia applications use a number of technologies generated for both commercial business application as well as the video game industry. Let us review some of these technologies in this section.Hypermedia DocumentHypermedia documents are documents which have text, embedded or linked multimedia objects such as image, audio, hologram, or full-motion video.HypertextHypertext implements the organization of non-sequential of data by natural association of information. Hypertext systems allow au thors to link information together create information paths through a large volume of related text in documents. It also allows annotating existing text, and appending notes. It allows fast and easy searching and reading of selected excerpts.HyperspeechMultimedia stimulated the culture of general-purpose speech interfaces. savoir-faire synthesis and speech recognition are fundamental requirement for hyperspeech systems. Speech recognition is nothing but converting the analog speech into a computer action and into ASCII text. Speech-recognition systems cannot segment a stream of sounds without breaks into meaningful units. The user must speak in a stilted fashion. He should touch sure to interpose silence between each word.3D and HolographyThree-dimensional technologies are concerned with twain areas pointing devices and displays. three-D pointing devices are essential to manipulate object in a 3-D display system. 3-D displays are achieved using holography techniques.Digital Sign al ProcessingDigital Signal Processing is used in applications such as digital servos in hard disk drives, and fax/modems. DSP technology is used in Digital wireless communications, such as personal communication networks (pens), wireless local area networks and digital cordless phones.DSP Architectures and ApplicationsA typical DSP operating system architecture would contain the following subsystems Memory centering DSP architectures provide dynamic allocation of arrays from multiple segments, including RAM, SRAM and DRAM. Hardware-Interrupt handling A DSP operating system must be designed to minimize hardware interrupt latency to ensure fast response to real time events for applications, such as servo systems. Multitasking DSPs needreal-time kernels that provide pre-emptive multitasking and user-defined and dynamic task prioritization.