User Manual

Quality Matching
1291
Example of Quality Matching
This example is typical of a newsroom offline session. In this workflow, clips are usually
captured simultaneously in MPEG-2 and DV 25, but sometimes the MPEG-2 clips are not
available. You want to get media immediately, and you want the lowest (most compressed)
resolution available to use less network bandwidth, but you’ll take DV 25 if that’s all that’s
available.
As you edit your project and load clips into a monitor, your Avid editing application dynamically
relinks the clips to media that most closely matches the working settings. Your Avid editing
application checks the Media Indexer to select one clip that matches the criteria. When it finds a
single clip, it stops.
For the preceding example settings, your Avid editing application follows this process:
1. Query: Is there media that comes from Tape0317?
Answer: Yes — there is more than one media file from that tape (MPEG-2 and DV 25
versions).
2. Query: Is there media from this tape that matches the clip’s timecode span?
Answer: Yes, there is more than one media file.
3. Query: Do these media files match NTSC size and topness?
Answer: Yes, there is more than one.
4. Query: Do any of these media files match the media family (MPEG-2)?
Answer: Yes, one media file matches all the criteria. Your Avid editing application links the
clip to that media file.
What if the MPEG-2 media doesn’t exist? Your Avid editing application looks for the next most
compressed media, finds one media file in DV 25 that matches the criteria, and links to it.
Project NTSC 30i
Source for clips Tape0317
Working settings If no match is found: Use Closest Match
Video Parameters
Relink Method: Most Compressed
Relink if Quality: Not applicable
Preferred media format: MXF