Mixing 16:9 and 4:3 video clips

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Trevor Andrew

Post by Trevor Andrew »

Hi

Mixing video files is usually ok Dv-Avi and Mpeg 2 go together assuming the frame order is the same.

.Mov files are highly compressed video, and care is needed when editing.
Video Studio can have difficulty when editing these formats.

The Avi, I assume Dv-Avi should be ok, again assuming the camera is a Mini-DV type.
The frame order for these files should be Lower.

The Mov files, a whole new ball game. There are many types using different compression, mine use Photo Jpeg, but as I say there are lots out there, some easy to work with some not so easy.
Field order is probably Frame Based as the video is generally targeting the internet.

We need to know the properties of all the video files used in your project, especially the Mov files.
Right click a clip in the timeline, select properties, what are they?

The make and Model of your camera may be useful
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Post by mitchell65 »

Just to add my two pennyworth. I see that Paul56 has only 512mb of RAM. Also quite a small hard drive. I wonder if this is causing a problem?
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Post by paul56 »

trevor andrew wrote:Hi

Mixing video files is usually ok Dv-Avi and Mpeg 2 go together assuming the frame order is the same.

.Mov files are highly compressed video, and care is needed when editing.
Video Studio can have difficulty when editing these formats.

The Avi, I assume Dv-Avi should be ok, again assuming the camera is a Mini-DV type. MySony DCR-TRV320E is a Digital-8.
The frame order for these files should be Lower.

We need to know the properties of all the video files used in your project, especially the Mov files.
Right click a clip in the timeline, select properties, what are they? See below

The make and Model of your camera may be useful. Not my camera but it's a Panasonic DMC-FS7 that produced the .mov files.
.mov clips
Movie size =848 x 480
Compression photo-jpeg
attributes 24 bits 848x480

4:3 Camcorder clips
Microsoft AVI files - open DML
Frame rate 25 fps
Video compression DV Video encoder type 1
Attributes 24 bits, 720x576, 4:3

Digital stills

RGB true colour 24 bit
JPEG interchange format
JPEG compression

I stress it's only the 4:3 images converted to 16:9 that appear blurred - and most noticeable on a 16:9 TV.

Thanks for all your help. I will be offline for a while but will respond ASAP.
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Post by sjj1805 »

MiniDV and Digital 8 for all intent and purposes are the same.
Physically the cassettes of a miniDV a a bit smaller than digital 8 but both record in Lower Field First DV(avi)

Your Sony Camcorder has a setting for 4.3 and 16.9 - I would suggest you alter that setting to 16.9 for all future projects - most people nowadays watch their TV on a wide screen set. Indeed most laptop / netbook computers now have a wide screen.
Trevor Andrew

Post by Trevor Andrew »

Hi Paul

I must agree that the poor quality of your Dv-Avi converted to standard Mpeg 2 is a little strange, unless its related to the use of wide angle lens, plus the conversion to 16:9.

If your Dv-Avi clips are the majority of your video then you will be best to stay with that format. 4:3
Have you tried creating a 4:3 video using only the Avi¡¦s
If so what is the quality.?
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