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Chapter 28 – Multimedia: Audio, Video, Speech Synthesis and Recognition

Chapter 28 – Multimedia: Audio, Video, Speech Synthesis and Recognition. Outline 28.1 Introduction 28.2 Audio and Video 28.3 Adding Background Sounds with the bgsound Element 28.4 Adding Video with the img Element’s dynsrc Property

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Chapter 28 – Multimedia: Audio, Video, Speech Synthesis and Recognition

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  1. Chapter 28 – Multimedia: Audio, Video, Speech Synthesis and Recognition Outline 28.1 Introduction 28.2 Audio and Video 28.3 Adding Background Sounds with the bgsound Element 28.4 Adding Video with the img Element’s dynsrc Property 28.5 Adding Audio or Video with the embed Element 28.6 Using the Windows Media Player ActiveX Control 28.7 Microsoft Agent Control 28.8 RealOne Player Plug-in 28.9 Synchronized Multimedia Integration Language (SMIL) 28.10 Scalable Vector Graphics (SVG) 28.11 Web Resources

  2. Objectives • In this lesson, you will learn: • To enhance Web pages with sound and video. • To use the bgsound element to add background sounds. • To use the img element’s dynsrc property to incorporate video into Web pages. • To use the embed element to add sound or video. • To use the Windows Media Player ActiveX control to play a variety of media formats in Web pages. • To use the Microsoft Agent ActiveX control to create animated characters that speak to users and respond to spoken commands from users. • To embed RealOne Player™ to include streaming audio and video in a Web page. • To embed video and create graphics in a Web page using SMIL and SVG.

  3. 28.1  Introduction • Multimedia • Use of sound, images, graphics and video • Add sound, video, and animated characters to Web-based applications • Streaming technologies

  4. 28.2  Audio and Video • Can be embedded in Web page • Can be downloaded “on-demand” • Encoding algorithm or codec • Transforms raw audio or video into a format that Web browsers can display

  5. 28.3  Adding Background Sounds with the bgsound Element • bgsound element • src property • Specifies the URL of audio clip to be played • loop property • Specifies number of times audio clip will play • balance property • Specifies balance between left and right speakers • volume property • Determines volume of audio clip

  6. BackgroundAudio.html(1 of 4)

  7. BackgroundAudio.html(2 of 4)

  8. BackgroundAudio.html(3 of 4)

  9. BackgroundAudio.html(4 of 4)

  10. 28.4  Adding Video with the img Element’s dynsrc Property • img element • Incorporates both images and videos • src property • Indicates source is image • dynsrc property • Indicates source is video clip • start property • Specifies when video should start playing • Event fileopen • Video should play as soon as it loads • Event mouseover • Video should play when user position mouse over video

  11. Dynamicimg.html(1 of 2)

  12. Dynamicimg.html(2 of 2)

  13. 28.5  Adding Audio or Video with the embed Element • Element embed • Embeds media clip into Web page • Displays a graphical user interface (GUI) • Supported by both Microsoft Internet Explorer and Netscape

  14. EmbeddedAudio.html(1 of 3)

  15. EmbeddedAudio.html(2 of 3)

  16. EmbeddedAudio.html(3 of 3)

  17. Play Pause Stop Mute Volume 28.5  Adding Audio or Video with the embed Element

  18. EmbeddedVideo.html(1 of 2)

  19. EmbeddedVideo.html(2 of 2)

  20. 28.6  Using the Windows Media Player ActiveX Control • object element • Embed Windows Media Player and ActiveX controls • Property id • Specifies scripting name of element • width and height properties • Specify width and height in pixels • property classid • Specifies ActiveX control ID • Element param • Specify parameter • Parameter FileName • Specifies file containing media clip • AutoStart (boolean value) • ShowControls (boolean value) • Loop (boolean value)

  21. MediaPlayer.html(1 of 3)

  22. MediaPlayer.html(2 of 3)

  23. MediaPlayer.html(3 of 3)

  24. 28.7  Microsoft Agent Control • Interactive animated characters • Speaks • Supports speech recognition

  25. tutorial.html(1 of 12)

  26. tutorial.html(2 of 12)

  27. tutorial.html(3 of 12)

  28. tutorial.html(4 of 12)

  29. tutorial.html(5 of 12)

  30. tutorial.html(6 of 12)

  31. tutorial.html(7 of 12)

  32. tutorial.html(8 of 12)

  33. tutorial.html(9 of 12)

  34. tutorial.html(10 of 12)

  35. tutorial.html(11 of 12)

  36. tutorial.html(12 of 12)

  37. 28.7  Microsoft Agent Control Fig. 28.7 Peedy finishing introduction.

  38. 28.7  Microsoft Agent Control Fig. 28.8 Peedy ready to receive voice commands.

  39. 28.7  Microsoft Agent Control Fig. 28.9 Peedy receiving voice command.

  40. 28.7  Microsoft Agent Control Fig. 28.10 Peedy discussing Good Programming Practices.

  41. 28.7  Microsoft Agent Control

  42. 28.7  Microsoft Agent Control

  43. 28.7  Microsoft Agent Control

  44. 28.8  RealOne Player Plug-in • Element embed • Embed RealOne Player plug-ins for video and audio • Attribute type • Specifies MIME type of embedded file • Attributes width and height • Specify dimensions of space the control occupies • Attribute autostart • Determines whether media start playing when page loads • Attribute controls • Specifies which controls users can access • Attribute src • Set to location of streaming media

  45. StreamingMedia.html(1 of 3)

  46. StreamingMedia.html(2 of 3)

  47. StreamingMedia.html(3 of 3)

  48. 28.9  Synchronized Multimedia Integration Language (SMIL) • Coordinate wide range of multimedia elements • XML-based description language • Organize text, audio, video to occur simultaneously or sequentially • Provide time reference for all instances of text and media • Specifies source and presentation of multimedia

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