Would appreciate any advice people can give for me on the following. I have a large 50 minute AVI clip captured direct from a Sony Mini DV. Source file properties are:
File Format: AVI
Frame Rate: 25.000
Video Compression: DV Video Encoder - Type 2
Attributes: 24 bits, 720 x 576, 4:3
Audio Compression: PCM
Attributes: 32,000kHz, 16 bit Stereo
I'm taking this 50 minute file and converting to an MPEG with the following properties (just to try and save some H/D space):
Type: MPEG-2
Frame Rate: 25.000
Video Attributes: 24 bits, 640 x 480, 4:3
Data Rate: Variable (Max 6000 kbps)
Audio Attributes: 48,000kHz, 16 bit Stereo
From the converted MPEG file, I am then trimming out sections to make a highlights package. There are still images and a cross fade transistion between clips, and a fade to black at the end of each half. Each goal will prompt title text to be displayed. (The amounts of transistions and titles will vary from project to project)
What I'm left with is a six minute clip, which with a custom setting, I can get the output file to a reasonable size (Trying not to go above 8MB for a complete highlights package). The settings I'm using at present to output the project are:
Windows Media Video
24 Bits, 320 x 240, 4:3, 15 fps
Frame-based
16.000 KHz, 16 Bits, Mono
This gives me a file size of 4.4MB which is good, but the video quality is pretty poor. Is there any way of improving the video quality significantly without a massive hike in file size?
(Apologies for the long post...)
Some Help With Creating Compressed MPEG Files
Moderator: Ken Berry
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THoff
Every time you transcode (convert) from one compressed format to another, you lose some quality even if you don't change the resolution o framerate. In fact, you may also lose quality through generational encoding (using the same encoding tool repeatedly).
What this boils down to is that you would be best off using your original DV AVI file as the source for the WMV file. It won't make a huge difference in quality but it would result in better quality at the same bitrate / file size.
What this boils down to is that you would be best off using your original DV AVI file as the source for the WMV file. It won't make a huge difference in quality but it would result in better quality at the same bitrate / file size.