Select an audio file in the Project Media window and click the Properties button to display the Properties dialog.

You can also view the properties for the media file associated with an event. Right-click the event, choose Properties from the shortcut menu, and click the Media tab.

The following settings are available for audio files.

Item	Description
File name	Displays the current media file name and location.
Tape name	This can be used to display the name of the tape from which you recorded the audio. The name can be edited here or in the corresponding field in the Edit Details window.
Stream	If a file contains multiple streams, you can use this control to select the stream for which you want view properties.
Attributes	Displays the file’s sample rate, bit-depth, number of channels, and length.
Format	Displays the compression format of the file.

Select a video file in the Project Media window and click the Properties button to display the Properties dialog.

You can also view the properties for the media file associated with an event. Right-click the event, choose Properties from the shortcut menu, and click the Media tab.

The following settings are available for video files.

Item

Description

File name

Displays the current media file name and location.

Tape name

This can be used to display the name of the tape from which you captured the video. The name can be edited here or in the corresponding field in the Edit Details window.

Use timecode in file

Select this radio button to accept the default timecode settings.

Use custom timecode

Select this radio button to specify a beginning value for the timecode.

Stream

If a file contains multiple streams, you can use this control to select the stream for which you want view properties.

Attributes

Displays the frame size, in pixels (x,y). color depth, and length of the file.

Format

Displays the compression format of the file.

Field order

Choose a setting from the drop-down list to change the field order of the file. Consult your capture/video output card’s manual for the proper field order.

None (progressive scan)	Select this option when viewing the video on a computer. This option ignores interlacing.
Upper field first	Select this option (also called odd or field A) for video that will be viewed on a television.
Lower field first	Select this option (also called even or field B) for DV output or if Upper field first produces jittery or shaky output or if your hardware manual specifies lower field first.

Pixel aspect ratio

Choose a setting from the drop-down list to change the pixel aspect of the file. This setting will depend on your capture/video output card. Consult your capture/video output card manual for the proper settings.

Alpha channel

Choose a setting from the drop-down list to change the alpha channel information for the file.

If the alpha channel in an image is not detected, choos
e the correct type of alpha channel from this drop-down list. If you’re unsure, try the Premultiplied setting first.

Undefined	Video provides no alpha channel information. This setting ignores any alpha channel information in the file.
None	Video has no alpha channel or there is an alpha channel but it’s completely opaque (solid).
Straight (unmatted)	Transparency information is maintained in only the alpha channel. Alpha information must be applied to the RGB channels before compositing.
Premultiplied	The standard method of handling alpha information. Transparency information is maintained in the alpha and RGB channels, and the image is ready for compositing. No RGB component exceeds the alpha value.
Premultiplied (dirty)	Similar to Premultiplied, but RGB components may exceed the alpha. This setting is used mainly for images created by 3D applications involving compositing of 3D images over a non-solid color image background.

Rotation

Choose a setting from the drop-down list to rotate a media file’s orientation.

	In this example, the video was shot with the camera tripod rotated 90 degrees. The project is rotated, but the media doesn’t match the project orientation, so the video is letterboxed within the frame.
	After choosing 90° clockwise from the Rotation drop-down list, the media is rotated, and the video fills the frame.

Tips:

If you want to rotate a project’s orientation, you can use the Output rotation drop-down list on the Video tab of the Project Properties dialog.
To rotate multiple files quickly, select them in the Project Media window, right-click a selected file, and then choose Rotate 90° Clockwise or Rotate 90° Counterclockwise from the shortcut menu.

For more information about working with rotated projects, please see Creating Rotated Projects.

If you frequently need to edit the settings for a type of video file, click the Save settings to video profiles for future auto-detection button after editing the settings on the Properties dialog.

The new settings are used whenever a file of that type is detected.

Viewing or Changing Media File Properties

In the Project Media window, click the Properties button to display the Properties dialog for the selected media file.

The application will try to detect the properties of your media files automatically. In most cases, you will not need to edit file properties.

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Viewing or Changing Media File Properties

What do you want to do?

Edit properties for an audio file

Edit properties for a video file

Save settings to video profiles for future auto-detection

Changing Media File Properties

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