tailieunhanh - Playing sounds

Macs have been capable of displaying sound and graphics—no add-on sound, graphics, or video boards required—from day one | Chapter 15. Sound Movies and Speech For years as other computer companies whipped themselves into a frenzy trying to market one multimedia computer or another Mac fans just smiled. Macs have been capable of displaying sound and graphics no add-on sound graphics or video boards required from day one years before the word multimedia was even coined. The Mac s superiority at handling sound and video continues in Mac OS X. QuickTime for example is software that lets you play digital movies on your screen and watch live streaming broadcasts from the Internet. This chapter covers both creative pursuits creating and using sound and playing and editing movies. As a bonus this chapter also covers Mac OS X s speech features how to command your Mac by voice as well as making your Mac talk back and Front Row the full screen across-the-room remote-controlled presentation mode for movies sounds photos and DVDs. . Playing Sounds You can have a lot of fun with digital sounds if you know where to find them where to put them and how to edit them. You can play almost any kind of digitized sound files even MP3 files right in the Finder if you put its window into column view or Cover Flow view or use Quick Look . But that s just the beginning. . Controlling the Volume Adjusting the volume of your Mac s speakers couldn t be easier Just add the speaker menu let to your menu bar as directed in Figure 15-1. That illustration also shows the Sound pane of System Preferences which offers another way to go about it. Tip Actually all current Macs offer an even more direct way to control the speaker volume speaker-control keys right on the keyboard and . The key next to them is the Mute button which instantaneously cuts off all the Mac s sound a wonderful feature when you find yourself trying to use the Mac surreptitiously in a library or church. Figure 15-1. The tiny speaker silhouette in the upper-right corner of your screen turns into a volume slider when you click it. To make this

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