In order to adjust the sound of a video, you need to use a program that can edit digital video, or application to synchronize the audio and video tracks.
Start the video editing program with separation function sounda marketing and video tracks. For example, the editor of Apple's iMovie (for Mac) or Adobe Premiere (PC). Import the video into the program, this in the File menu ( "File") select the Import ( "Import"). When the Import window, navigate to the folder on your hard drive where the file, and double-click on it stored.
Click on the first video created fromimported video, then use the Shift key and the down arrow key to move down and select all the clips from the movie. When all clips are selected, click on any clip and drag it to the timeline to move all video clips in the correct order.
Click on the "+" symbol next to the track with a signVideo ( «Video"), to show the track Audio ( «Audio"). Right-click on the Video or Audio track and select the Unlink option ( "Delete Link") to separate soundand a video into two separate rows.
Move to the right clips to the audio track is included later. Or move the clips to the left to soundoic path included before. To move the first clip to the left first, click on the left edge of the clip and drag it slightly to the right to bring up a small space.
Check the audio and video are synchronized when you move clips by pressing the Play button ( "Play") on the preview screen. As soon as sound and videos are played in the synchronization, selectFile menu option Export ( «Export"). Type a file name, click the Browse button ( "Review") to select a folder to save the video and click the Export button.
In order to adjust the sound a video using the applications to synchronize,download and install the appropriate software, for example, AV-Sync or VirtualDub. On the File menu, select Open option ( "Open"). Navigate to the folder that contains the video file, and double-click on it to add to the program interface.
Navigate to the automatic synchronization function. The AV-Sync This function is located on the "Sync" tab. In VirtualDub press "Video - Sync». Select Auto Sync, pressing the button Automatic ( "Automatic") in AV-Sync or Change video and audio to match ( «Synchronize video and audio") in VirtualDub. Click OK, to return to the main screen of the program. Click File Save option ( "Save") or the Apply ( "Apply"), enter the file name in the dialog box and press Enter.