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Going Native (Native Sound That Is) > Extracting Native Sound - Pg. 126

iMovie: The Swiss Army Knife of Digital Video Software Set the Duration of a Sound Fade 126 1. 2. 3. 4. 5. 6. 7. Select the clip whose sound you want to fade in or fade out. Choose File, Get Clip Info (or press Shift+ +I). The Clip Info window will appear. To make the audio of the selected clip fade in, check the Audio Fade In checkbox. Use the Audio Fade In slider to set the duration of the fade in. Move the slider to the left to make the sound fade in more quickly. Moving the slider to the right makes the clip fade in more slowly. In a similar way, use the Audio Fade Out controls to set the audio's fade out. Click OK to close the Info window and to set the fade properties. Preview the clip to hear the affect of your fades. Make changes if the results are not satisfactory. Extracting Native Sound You can extract the audio portion of a clip that contains native sound so that you can work with that sound independently from the video clip. For example, you might want to remove some frames from a clip while keeping the underlying sound intact. You can extract the sound from that particular clip and then edit the video without changing the sound that you extracted from the clip. Extracting the audio from a clip also enables you to move the sound relative to the video clip. This is useful if you don't want to use all of the audio, but want to keep all of the video in the clip. TIP One of the best uses for the extracting audio feature is when you have a clip containing background music that should be at least somewhat synchronized with the video, such as a ballet performance. You can extract the audio, and then you can edit the video part of the clip without hacking up the music that goes with it. You can then "spread" the extracted music so that the single music clip covers all of the video. Although the music may not exactly match what is happening in the video anymore, this is much less distracting than music that jumps around as the edited scenes play. Extract a Clip's Native Sound 1. 2. Select the clip from which you want to extract sound on the Timeline Viewer. Choose Advanced, Extract Audio. The audio portion of the clip is extracted, and it is placed on the Audio 1 track. When you extract it, it's still in synch with the video clip from whence it came (see Figure 4.25). You can tell this by the Locked icons that appear at the beginning of the video and audio clips. You'll learn more about locking and unlocking audio clips to video in the section called " Building a Soundtrack that Rocks " later in this chapter.