1. Exploring iMovie
iMovie sits at the center of the iLife suite, integrating iTunes, iPhoto, and iDVD to help create professional-looking films with music, titles, and effects. 
Although the current version of iMovie is HD-compatible, you will only be able to import and edit High-Definition Video if you’ve shot your footage on an HD camcorder. 
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2. Working with Audio
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3. How iMovie Treats Audio1. 2. 3.
Audio stored with original video clip
Audio track 1
Audio track 2
iMovie allows you to edit and manipulate up to 3 separate layers of audio. You’ll be able to import audio from a variety of sources: bring in tracks from your iTunes library, grab a song from a CD, or sift through iMovie’s built-in library of sound effects. Once you get your audio into iMovie, they become audio clips that you can drop into the timeline, cut, crop, shuffle, and drag just like any other clip.
Before we start importing tracks, let’s take a quick look at how iMovie arranges and displays our available audio tracks.
Switch over to a Timeline view of your movie.  You won’t be able to edit audio in Clips mode.
Notice your 3 tracks: The top track is actually your Video Track, but each clip’s original audio lives here as well.  Just below are Audio Tracks 1 and 2.  This is where you’ll drop and edit the audio clips you import.
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4. Inserting Audio 1. 2.
Click the Audio tab (If you want to insert tracks from a CD insert the CD now.)
Choose your Audio source
iTunes if the audio is already in your iTunes library
Audio CD
iMovie Sound Effects
Select the movie clip in the timeline that you would like to add a sound effect to.
Drag the playhead on the timeline to the frame where you would like the clip to play, and click Place at Playhead. You will see the sound clip in the movie track.
Import Audio
Click the Audio tab.
The Audio Pane will open.
If you’d like to import tracks from an Audio CD, insert your CD now.
Choose your audio source with the drop-down menu at top.
ITunes Library: Choose this if you’d like to import tracks that you’ve already added to the Mac’s iTunes Library.
CD: Select Audio CD, or the title of your CD from the drop-down menu
iMovie Sound Effects: choose this option if you’d like to take advantage of iMovie’s bundled effects.  Then choose > “Skywalker Sound Effects” or “Standard Sound Effects” to see the list of available clips.
Select a track from the list that opens.  Double-click the track title or click the Play key to Preview your audio.
Now you may either drag your track down to one of the Audio Tracks on your timeline.  Or you can position the Playhead on your timeline first, and select > Place at Playhead. 4.
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5. Editing Audio Cropping
Drag the ends of the tracks in the sound channels
Splitting Audio Clips
Select the audio clip you wish to split.
Drag the Playhead to desired split point.
Edit > Split Selected Audio Clip at Playhead
Adjusting Volume
Select the desired clip in the Timeline.
Go to the clip volume control
Click on the blue sound icon.
Adjust the volume of the clip, from 0-150%.
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6. Editing Audio Adding a Voiceover1.
Click the Audio button.
Click the Record button next to the input meter and speak into your microphone.
Speak clearly. While you are speaking, the input meter should be yellow. If it turns red, you are speaking too loudly.
Click the button again to stop recording.
The audio clip of your voice appears in the first audio track of the timeline viewer. You can drag the audio clip to position it to play with the appropriate video clips. If you want to rename the clip, select it and choose File > Show Info to open the Clip Info window.
Tip: If you don't have a microphone, you can use your video camera as a microphone. Record your voiceover with your video camera and import the footage into iMovie HD. Then choose Advanced > Extract Audio. When the audio appears in a track below the video, you can delete the video track. 2.
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7. Adjusting Volume Levels
Select the Edit Volume checkbox.
A bar appears across the audio tracks of the timeline viewer, to show current volume levels for each clip.
Click the bar at the point which you want to begin increasing or decreasing the clip volume
A marker appears
Drag the marker up or down to increase or decrease the volume from that point to the end of the clip.
You can create as many markers as you need to adjust the volume as finely as you want.
To make the volume adjustment more gradual, drag the small end of the marker to create more of a slope
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8. Deleting a Volume Marker
Select the volume level marker and press Delete.
To make the audio clip fade in and out:
Select the clip in the timeline viewer.
Select the Edit Volume checkbox.
Click a point on the volume level bar where you want to adjust the volume. A marker appears.
Drag the marker to where you want the sound adjustment to end (if fading in) or begin (if fading out).
Drag the smaller point on the marker up or down, depending on whether you want the volume
to get louder or softer. You can adjust how rapidly the volume changes with the slope of the marker.
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9. Locking Audio to Video To lock audio to video:
Position your audio clip where you want it to begin in your movie.
Choose Advanced > Lock Audio Clip at Playhead.
The pins indicate that the audio clip is locked to the video clip.
To unlock audio from a video clip:
In the timeline viewer, select the audio clip.
Choose Advanced > Unlock Audio Clip.
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10. Extracting Audio from Video
In the timeline viewer, select the video clip.
Choose Advanced > Extract Audio.
The extracted audio clip appears in the first audio track directly below the clip from which it was
extracted. The audio is locked to the video, but you can unlock it if you want to move it to
another part of your movie.
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11. Sharing Your Movie
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12. Sharing Options iMovie provides several standard options for sharing:
File > Share
Choose and option
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13. Exporting back to Tape
Connect your camera to your computer using a FireWire cable
Make sure you have a blank DV tape in your camcorder and set your camera to VTR mode.
Choose File > Share.
Click Videocamera in the toolbar, then type a number in the field to specify how long you want the computer to wait before it begins exporting the movie. You can also specify if you want to
add black footage on the tape before and after your movie.
Click Share.
When the movie is finished exporting, you can use the tape as you would any other digital videotape.
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14. Making Chapter Markers
Click the iDVD tab. 
The iDVD Pane will open.
On your timeline, select a Clip that you’d like to become a Chapter Marker. 
Click “Add Chapter.”  iMovie will add a Chapter icon to the iDVD Pane.
Enter a Chapter Title in the text box.
Remove a Chapter by clicking “Remove Chapter”
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15. Exporting to iDVD Choose File > Share.
Click QuickTime in the toolbar.
Choose Full Quality DV from the “Compress movie for” pop-up menu.
Click Share.
Type a name for your movie file and select a destination.
Click Save.
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16. Other Viewing Formats
All viewing formats (except for DV tape) are QuickTime formats that differ in size depending on what they will be used for. For example, if you want to send your movie via , you will want a very small QuickTime file size.
To export to QuickTime:
Choose File > Share.
Click QuickTime in the toolbar.
Choose an option from the “Compress movie for” pop-up menu and click Share.
Type a name for your movie file and select a destination.
Click Save.
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17. Other Sharing Methods Email Click Email in the Share dialog
Your movie is automatically attached to a blank
Type an address and a message and click Send.
Internet
Click HomePage in the Share dialog
Type a name for your movie
Click Share
Your movie is automatically sent to your iDisk and HomePage so you can post it on the Internet
Bluetooth devices
You can use Bluetooth technology to transfer movies wirelessly to other computers, mobile phones, personal digital assistants, and more.
To use Bluetooth devices with iMovie, your Bluetooth device must be compliant with the Third Generation Partnership Program (3G-PP) and have an appropriate video application to be able to display movies.
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