User manual

443
Video
Extracting audio from a video file
If a video file contains audio, it can be extracted. Regard-
less of the audio format in the actual file, the resulting au-
dio file will always be in the format (Sample Rate and
Record Format) that is specified for the Project in the
Project Setup dialog.
There are several ways to extract audio from a video file:
• By activating “Extract Audio” in the Import Video dialog.
This will add the audio on the active or on a new audio track. The new
track and the clip will get the name of the video file. The new audio event
will start at the same time as the video event, so that they are in sync with
each other.
• By activating “Extract Audio on Import Video File” in the
Preferences (Editing–Video page).
This will automatically extract the corresponding audio from a video file
during import. This is also true if you import files using drag and drop.
• By using “Import Audio from Video File” from the File–
Import submenu.
This will add the audio to the currently active or a new audio track. How-
ever, in this case no video clip is created, only an audio event (starting at
the project cursor position).
• By using Extract Audio from Video File on the Media
menu.
When a video file is selected in the pool, the audio is extracted and
added to the Pool as a clip. When no video file is selected, the “Import
audio tracks from video” dialog is opened, in which you can select a
video file from which the audio data is to be extracted and imported into
the project.
Ö Please note audio extraction is not possible for Quick-
Time video files containing compressed audio.
Playing back a video file
Video files are displayed as events/clips on the video
track, with thumbnails representing the frames in the film
(if the option Show Video Thumbnails is activated in the
Preferences, Event Display–Video page).
A video event on a video track.
In the track list and Inspector, you will find the following
controls for video tracks:
To view the video on the computer screen (as opposed to
on an external monitor, see below), proceed as follows:
• If you’re running Mac OS X, open the Device Setup dia-
log from the Devices menu, click “Video Player” in the list
and make sure “Onscreen Window” is selected in the
Video Output section of the dialog.
• Under Windows, either pull down the Devices menu
and select Video, or use a key command – by default [F8],
or double-click the video clip.
A video window appears. In Stop mode, this displays the video frame at
the project cursor position.
The video will be played back together with any other
events in the Project window as usual.
Video quality in QuickTime
When you are using QuickTime as your video player, you
can select “High Quality” from the Video window context-
menu, or “Use high-quality video settings when available”
in the Device Setup dialog, Video Player page, in the
Video Properties section for QuickTime).
• When your QuickTime video was recorded with the cor-
responding quality settings, selecting the “Use high-qual-
ity video settings when available” or the “High Quality”
option will make the video display sharper and smoother.
Note that this will also lead to increased processor load.
Button Description
Lock When this is activated, the video event will be locked, see
“Locking events” on page 51.
Show Frame
Numbers
When this is activated, each thumbnail is shown with the
corresponding video frame number.
Snap
Thumbnails
When this is activated, the individual thumbnail images
will be positioned exactly at their respective start time po-
sition. Also, no more than one thumbnail per frame will be
shown, even if you zoom in a lot.
Mute Video When this is activated, video playback will be stopped,
but playback of any other events in the project will con-
tinue (to decrease the processor load). You may have to
use the Track Controls Settings dialog to make this but-
ton visible in the Track list.