User manual APPLE QUICK TIME 7.2

[. . . ] QuickTime 7. 2 User's Guide Includes instructions for using QuickTime Pro For Mac OS X version 10. 3. 9 or later, and Windows XP K Apple Inc. Under the copyright laws, this manual may not be copied, in whole or in part, without the written consent of Apple. Your rights to the software are governed by the accompanying software license agreement. Use of the "keyboard" Apple logo (Option-Shift-K) for commercial purposes without the prior written consent of Apple may constitute trademark infringement and unfair competition in violation of federal and state laws. [. . . ] To play the movie without audio, select Mute. Extracting, Adding, and Moving Tracks With QuickTime Pro, you can create a new movie from one or more tracks of an existing movie, while leaving the original movie file intact. For example, you could create a movie that uses only the audio from an existing movie. You can also add the extracted track to an existing movie. 32 Chapter 3 Editing and Authoring with QuickTime Pro To extract a track (and add it to another movie): 1 Choose Window > Show Movie Properties. You can select more than one track by holding down the Shift key when you click. 3 To add the extracted track to another movie, select the movie (or the portion of it you want your pasted media to fit into) and choose Edit > "Add to Movie. " When you add a track to a movie, the track's duration is unaltered. For example, if you add a 10-second sound track to a 1-minute movie, the sound track plays for 10 seconds, starting at the position in the movie where you added the track. To "scale" a track so that it stretches or compresses to a particular length, drag the In and Out markers of the target movie to select the duration you want the new track to cover and then choose Edit > "Add to Selection and Scale" in step 3. Scaling audio may change the speed of the audio (although the pitch remains the same when you play the movie in QuickTime Player). You could add video to sound instead, and speed up or slow down the video to match the audio. You might have better results if you compare the timelines of the two tracks and cut from one or the other until they have the same duration. Working with Audio Tracks QuickTime audio includes music tracks, which contain MIDI or other data, and sound tracks, which contain digitized audio. Adding an Audio Track to a QuickTime Movie You can easily add audio and other tracks to a QuickTime movie. To add an audio track to a movie: 1 In QuickTime Player, choose File > Open File and select the audio file you want to import. 2 In the QuickTime Player window that opens, choose Edit > Select All to select the entire audio file, then choose Edit > Copy. To add the audio to a part of the movie, select a part and choose Edit > "Add to Selection and Scale" . "Add to Selection and Scale" slows down or speeds up the audio track to fit the length of the selected part of the movie; the pitch remains the same (when you play the movie in QuickTime Player). You could add video to sound instead, and speed up or slow down the video to match the audio. You might have better results if you compare the timelines of the two tracks and cut from one or the other until they have the same duration. Chapter 3 Editing and Authoring with QuickTime Pro 33 Note: If your audio and video are created by the same device, such as a DV camera, and are created at the same time, the audio and video will be synchronized. Changing Sound Track Volume Levels and Other Audio Settings With QuickTime Pro, you can change the volume and balance of audio and music tracks. For example, if a movie has more than one audio track, you can adjust the volume of the tracks relative to one another. To change settings for an audio track: 1 In QuickTime Player, choose Window > Show Movie Properties. 2 In the Properties window, select the audio track and click Audio Settings. 4 Use the pop-up menu to the right of each audio channel to specify where the channel's sound should be directed. [. . . ] MIDI (Musical Instrument Digital Interface) A software and hardware standard set by the music industry that enables electronic instruments to communicate with one another and with computers. MPEG-4 An ISO standard based on the QuickTime file format that defines multimedia file and compression formats. node In QuickTime VR, a point from which an object or panorama can be viewed. NTSC (National Television System Committee) The organization that defines North American broadcast standards. [. . . ]