Unit 5 Multimedia Technique of Computer
1．Text
Whether or not they have used a computer,most people are familiar with text. Text is the basis for word processingprograms and is still the fundamental information used in many multimediaprograms.
In fact, many multimedia applications arebased on the conversion of a book to a computerized form. This conversion givesthe user immediate access to the text and lets him or her display pop-upwindows, which give definitions of certain words. Multimedia applications alsoenable the user to instantly display information related to a certain topicthat is being viewed. Most powerfully, the computerized form of a book allowsthe user to look up information quickly (without referring to the index ortable of contents).
The Windows operating environment gives theuser an almost infinite range of expressing text. As a multimedia programmer,you can choose what font to display text in, how big (or small) it should be,and what color it should be displayed in. By displaying text in more than oneformat, the message a multimedia application is trying to portray can be mademore understandable.
One type of an application, which many peopleuse every day, is the Windows Help Engine. This application is a text-basedinformation viewer that makes accessing information related to a certain topiceasy.
2．AudioSound
The integration of audio sound into amultimedia application can provide the user with information not possiblethrough any other method of communication. Some types of information can't beconveyed effectively without using sound. It is nearly impossible, for example,to provide an accurate textual description of the beat of a heart or the soundof the ocean.
Audio sound isavailable in several different formats. Today, maybe the most common type ofaudio is red book audio. This is the standard specification used to refer toconsumer audio compact discs. It is an international standard and is officiallyknown as IEC 908.
Another audio sound format is the Windowswave file, which can be played only on PCs running the Windows operatingenvironment. A wave file contains the actual digital data used to play back thesound as well as a header that provides additional information about theresolution and playback rate. Wave files can store any type of sound that canbe recorded by a microphone.
The final type of an audio sound that may beused is known as the Musical Instrument Digital Interface or MIDIfor short. The MIDI format is actually aspecification invented by musical instrument manufacturers. Rather than being adigitized form of the sound, the MIDIspecification is actually a set of messages that describes what musical note isbeing played. The MIDI specification cannotstore anything except in the form of musical notes. MIDImusic can be created with a sequencer.
3．StaticGraphics Images
When you imagine graphics images you probablythink of "still" images - that is, images such as those in aphotograph or drawing. There is no movement in these types of picture. Staticgraphics images are an important part of multimedia because humans are visuallyoriented. As the old Chinese proverb goes, "A picture is worth a thousandwords." Windows is also a visual environment. This makes displayinggraphics images easier than it would be in a DOS-based environment.
Static graphics images have a number offormats and can be created in a number of different ways. Just as you can seean unlimited number of photographs or pictures, the types of static graphicsimages that you can include in a multimedia application are almost unlimited.
4. Animation
Animation refers to moving graphics images.The movement of somebody giving CPR makes it much easier to learncardiopulmonary resuscitation, rather than just viewing a static picture. Justas a static graphics image is a powerful form of communication, such is the casewith animation. Animation is especially useful for illustrating concepts thatinvolve movement.
Such concepts as playing a guitar or hittinga golf ball are difficult to illustrate using a single photograph, or even aseries of photographs, and even more difficult to explain using text. Animationmakes it easier to portray these aspects of your multimedia application.
5. Full-Motion Video
Full-motion video, such as the imagesportrayed in a television, can add even more to a multimedia application. Althoughfull-motion video may sound like an ideal way to add a powerful message to amultimedia application, it is nowhere near the quality you would expect afterwatching television. Full-motion video is still in its beginning stages on PCs,and it is limited in resolution and size. Even with advanced methods of datacompression, full-motion video can suck up hard disk space faster than waterfalls when poured out of a bucket.
Right now, there are two major methods ofincorporating full-motion video into a multimedia application: Microsoft Videofor Windows, and Quick Time for Windows from Apple Computers. Both productscome with tools for getting the video from an external input (a videocassette recorderor a video camera) and storing it on your hard disk drive.
Unit 5 Multimedia Technique of Computer
1．Text
Whether or not they have used a computer,most people are familiar with text. Text is the basis for word processingprograms and is still the fundamental information used in many multimediaprograms.
In fact, many multimedia applications arebased on the conversion of a book to a computerized form. This conversion givesthe user immediate access to the text and lets him or her display pop-upwindows, which give definitions of certain words. Multimedia applications alsoenable the user to instantly display information related to a certain topicthat is being viewed. Most powerfully, the computerized form of a book allowsthe user to look up information quickly (without referring to the index ortable of contents).
The Windows operating environment gives theuser an almost infinite range of expressing text. As a multimedia programmer,you can choose what font to display text in, how big (or small) it should be,and what color it should be displayed in. By displaying text in more than oneformat, the message a multimedia application is trying to portray can be mademore understandable.
One type of an application, which many peopleuse every day, is the Windows Help Engine. This application is a text-basedinformation viewer that makes accessing information related to a certain topiceasy.
2．AudioSound
The integration of audio sound into amultimedia application can provide the user with information not possiblethrough any other method of communication. Some types of information can't beconveyed effectively without using sound. It is nearly impossible, for example,to provide an accurate textual description of the beat of a heart or the soundof the ocean.
Audio sound isavailable in several different formats. Today, maybe the most common type ofaudio is red book audio. This is the standard specification used to refer toconsumer audio compact discs. It is an international standard and is officiallyknown as IEC 908.
Another audio sound format is the Windowswave file, which can be played only on PCs running the Windows operatingenvironment. A wave file contains the actual digital data used to play back thesound as well as a header that provides additional information about theresolution and playback rate. Wave files can store any type of sound that canbe recorded by a microphone.
The final type of an audio sound that may beused is known as the Musical Instrument Digital Interface or MIDIfor short. The MIDI format is actually aspecification invented by musical instrument manufacturers. Rather than being adigitized form of the sound, the MIDIspecification is actually a set of messages that describes what musical note isbeing played. The MIDI specification cannotstore anything except in the form of musical notes. MIDImusic can be created with a sequencer.
3．StaticGraphics Images
When you imagine graphics images you probablythink of "still" images - that is, images such as those in aphotograph or drawing. There is no movement in these types of picture. Staticgraphics images are an important part of multimedia because humans are visuallyoriented. As the old Chinese proverb goes, "A picture is worth a thousandwords." Windows is also a visual environment. This makes displayinggraphics images easier than it would be in a DOS-based environment.
Static graphics images have a number offormats and can be created in a number of different ways. Just as you can seean unlimited number of photographs or pictures, the types of static graphicsimages that you can include in a multimedia application are almost unlimited.
4. Animation
Animation refers to moving graphics images.The movement of somebody giving CPR makes it much easier to learncardiopulmonary resuscitation, rather than just viewing a static picture. Justas a static graphics image is a powerful form of communication, such is the casewith animation. Animation is especially useful for illustrating concepts thatinvolve movement.
Such concepts as playing a guitar or hittinga golf ball are difficult to illustrate using a single photograph, or even aseries of photographs, and even more difficult to explain using text. Animationmakes it easier to portray these aspects of your multimedia application.
5. Full-Motion Video
Full-motion video, such as the imagesportrayed in a television, can add even more to a multimedia application. Althoughfull-motion video may sound like an ideal way to add a powerful message to amultimedia application, it is nowhere near the quality you would expect afterwatching television. Full-motion video is still in its beginning stages on PCs,and it is limited in resolution and size. Even with advanced methods of datacompression, full-motion video can suck up hard disk space faster than waterfalls when poured out of a bucket.
Right now, there are two major methods ofincorporating full-motion video into a multimedia application: Microsoft Videofor Windows, and Quick Time for Windows from Apple Computers. Both productscome with tools for getting the video from an external input (a videocassette recorderor a video camera) and storing it on your hard disk drive.
Unit 5 Multimedia Technique of Computer
1．Text
Whether or not they have used a computer,most people are familiar with text. Text is the basis for word processingprograms and is still the fundamental information used in many multimediaprograms.
In fact, many multimedia applications arebased on the conversion of a book to a computerized form. This conversion givesthe user immediate access to the text and lets him or her display pop-upwindows, which give definitions of certain words. Multimedia applications alsoenable the user to instantly display information related to a certain topicthat is being viewed. Most powerfully, the computerized form of a book allowsthe user to look up information quickly (without referring to the index ortable of contents).
The Windows operating environment gives theuser an almost infinite range of expressing text. As a multimedia programmer,you can choose what font to display text in, how big (or small) it should be,and what color it should be displayed in. By displaying text in more than oneformat, the message a multimedia application is trying to portray can be mademore understandable.
One type of an application, which many peopleuse every day, is the Windows Help Engine. This application is a text-basedinformation viewer that makes accessing information related to a certain topiceasy.
2．AudioSound
The integration of audio sound into amultimedia application can provide the user with information not possiblethrough any other method of communication. Some types of information can't beconveyed effectively without using sound. It is nearly impossible, for example,to provide an accurate textual description of the beat of a heart or the soundof the ocean.
Audio sound isavailable in several different formats. Today, maybe the most common type ofaudio is red book audio. This is the standard specification used to refer toconsumer audio compact discs. It is an international standard and is officiallyknown as IEC 908.
Another audio sound format is the Windowswave file, which can be played only on PCs running the Windows operatingenvironment. A wave file contains the actual digital data used to play back thesound as well as a header that provides additional information about theresolution and playback rate. Wave files can store any type of sound that canbe recorded by a microphone.
The final type of an audio sound that may beused is known as the Musical Instrument Digital Interface or MIDIfor short. The MIDI format is actually aspecification invented by musical instrument manufacturers. Rather than being adigitized form of the sound, the MIDIspecification is actually a set of messages that describes what musical note isbeing played. The MIDI specification cannotstore anything except in the form of musical notes. MIDImusic can be created with a sequencer.
3．StaticGraphics Images
When you imagine graphics images you probablythink of "still" images - that is, images such as those in aphotograph or drawing. There is no movement in these types of picture. Staticgraphics images are an important part of multimedia because humans are visuallyoriented. As the old Chinese proverb goes, "A picture is worth a thousandwords." Windows is also a visual environment. This makes displayinggraphics images easier than it would be in a DOS-based environment.
Static graphics images have a number offormats and can be created in a number of different ways. Just as you can seean unlimited number of photographs or pictures, the types of static graphicsimages that you can include in a multimedia application are almost unlimited.
4. Animation
Animation refers to moving graphics images.The movement of somebody giving CPR makes it much easier to learncardiopulmonary resuscitation, rather than just viewing a static picture. Justas a static graphics image is a powerful form of communication, such is the casewith animation. Animation is especially useful for illustrating concepts thatinvolve movement.
Such concepts as playing a guitar or hittinga golf ball are difficult to illustrate using a single photograph, or even aseries of photographs, and even more difficult to explain using text. Animationmakes it easier to portray these aspects of your multimedia application.
5. Full-Motion Video
Full-motion video, such as the imagesportrayed in a television, can add even more to a multimedia application. Althoughfull-motion video may sound like an ideal way to add a powerful message to amultimedia application, it is nowhere near the quality you would expect afterwatching television. Full-motion video is still in its beginning stages on PCs,and it is limited in resolution and size. Even with advanced methods of datacompression, full-motion video can suck up hard disk space faster than waterfalls when poured out of a bucket.
Right now, there are two major methods ofincorporating full-motion video into a multimedia application: Microsoft Videofor Windows, and Quick Time for Windows from Apple Computers. Both productscome with tools for getting the video from an external input (a videocassette recorderor a video camera) and storing it on your hard disk drive.
Unit 5 Multimedia Technique of Computer
1．Text
Whether or not they have used a computer,most people are familiar with text. Text is the basis for word processingprograms and is still the fundamental information used in many multimediaprograms.
In fact, many multimedia applications arebased on the conversion of a book to a computerized form. This conversion givesthe user immediate access to the text and lets him or her display pop-upwindows, which give definitions of certain words. Multimedia applications alsoenable the user to instantly display information related to a certain topicthat is being viewed. Most powerfully, the computerized form of a book allowsthe user to look up information quickly (without referring to the index ortable of contents).
The Windows operating environment gives theuser an almost infinite range of expressing text. As a multimedia programmer,you can choose what font to display text in, how big (or small) it should be,and what color it should be displayed in. By displaying text in more than oneformat, the message a multimedia application is trying to portray can be mademore understandable.
One type of an application, which many peopleuse every day, is the Windows Help Engine. This application is a text-basedinformation viewer that makes accessing information related to a certain topiceasy.
2．AudioSound
The integration of audio sound into amultimedia application can provide the user with information not possiblethrough any other method of communication. Some types of information can't beconveyed effectively without using sound. It is nearly impossible, for example,to provide an accurate textual description of the beat of a heart or the soundof the ocean.
Audio sound isavailable in several different formats. Today, maybe the most common type ofaudio is red book audio. This is the standard specification used to refer toconsumer audio compact discs. It is an international standard and is officiallyknown as IEC 908.
Another audio sound format is the Windowswave file, which can be played only on PCs running the Windows operatingenvironment. A wave file contains the actual digital data used to play back thesound as well as a header that provides additional information about theresolution and playback rate. Wave files can store any type of sound that canbe recorded by a microphone.
The final type of an audio sound that may beused is known as the Musical Instrument Digital Interface or MIDIfor short. The MIDI format is actually aspecification invented by musical instrument manufacturers. Rather than being adigitized form of the sound, the MIDIspecification is actually a set of messages that describes what musical note isbeing played. The MIDI specification cannotstore anything except in the form of musical notes. MIDImusic can be created with a sequencer.
3．StaticGraphics Images
When you imagine graphics images you probablythink of "still" images - that is, images such as those in aphotograph or drawing. There is no movement in these types of picture. Staticgraphics images are an important part of multimedia because humans are visuallyoriented. As the old Chinese proverb goes, "A picture is worth a thousandwords." Windows is also a visual environment. This makes displayinggraphics images easier than it would be in a DOS-based environment.
Static graphics images have a number offormats and can be created in a number of different ways. Just as you can seean unlimited number of photographs or pictures, the types of static graphicsimages that you can include in a multimedia application are almost unlimited.
4. Animation
Animation refers to moving graphics images.The movement of somebody giving CPR makes it much easier to learncardiopulmonary resuscitation, rather than just viewing a static picture. Justas a static graphics image is a powerful form of communication, such is the casewith animation. Animation is especially useful for illustrating concepts thatinvolve movement.
Such concepts as playing a guitar or hittinga golf ball are difficult to illustrate using a single photograph, or even aseries of photographs, and even more difficult to explain using text. Animationmakes it easier to portray these aspects of your multimedia application.
5. Full-Motion Video
Full-motion video, such as the imagesportrayed in a television, can add even more to a multimedia application. Althoughfull-motion video may sound like an ideal way to add a powerful message to amultimedia application, it is nowhere near the quality you would expect afterwatching television. Full-motion video is still in its beginning stages on PCs,and it is limited in resolution and size. Even with advanced methods of datacompression, full-motion video can suck up hard disk space faster than waterfalls when poured out of a bucket.
Right now, there are two major methods ofincorporating full-motion video into a multimedia application: Microsoft Videofor Windows, and Quick Time for Windows from Apple Computers. Both productscome with tools for getting the video from an external input (a videocassette recorderor a video camera) and storing it on your hard disk drive.
