Let's step back for a moment, and talk about those stills. What are the pixel x pixel size of them?
Next, what is your Project Preset, chosen at New Project?
Then, when you chose AVI, can you tell us what the settings were?
WMV (different CODEC's and also bit-rates/quality settings available) is usually a very highly-compressed format, hence the smaller file sizes. It is also a good choice for streaming media. H.264 is the same. However, there are many variables in those choices.
By knowing the answers to the first questions posed, someone should be able to help you make the right choices for the highest quality Export/Share.
Now, since you are submitting the Project, are there file size limitations, or do you just want to keep the file size down? The reason that I ask this is because higher bit-rates will yield higher quality, but also larger file sizes. If you have a target that you must hit, then the choice is to drop the bit-rate down, and live with the lowered quality.
Thanks for taking the time.
- Stills are either 1200x800 or 640x480 JPEGs .
- Project preset is DV PAL (hope that makes sense). What should this ideally be if wanting to export the final film as a Quick Time movie or as an MPEG-4?
- When I chose AVI, I chose the Microsoft AVI format and changed it so that output resolution was 640x480 (instead of the preset format of 720x576)
I understand the basic relationship between file size and video quality, and it is because of that that I am highly confused at what I have now, viz:
- a WMV file that is BOTH small (less than 20MB) AND as high quality as I could ever wish for (i.e. I cannot imagine an uncompressed file being of better quality than this WMV).
- 2 AVI files (one compressed at 100% quality, one at 50% quality) using the settings above that are BOTH huge (200MB) AND worse quality than the 20MB WMV file!!!
- 2 Quick Time movies (one using the MPEG-4 codec, the other using the H.264 codec) that are also BOTH huge (200MB) and worse quality then the 20 MB WMV file.....
So I seem to have something happening here that supposedly runs counter to the well-known higher-quality-equals-higher-file-size rule of commpressed video.... I understand that I haven't made some new discovery here, rather that I am misunderstanding something about Premiere/codecs/file formats.
sorry, typo, the WMV file is only 11MB, not 20MB. no big difference, but confusing perhaps.
Are you Exporting for the PAL TV standard?
Is there a requirement for that Frame Size, 640 x 480?
You say that you can submit an AVI file. Are there any specifications on what CODEC must be used in that AVI "wrapper?"
Also, exactly how are you judging the output files? Are you using the same players, the same monitor, and the same display size for all?
>>Are you Exporting for the PAL TV standard?
No, when exporting as AVI, I was exporting for Microsoft AVI standard.
I will try exporting as DV PAL standard, that sounds like a good lead.
>>Is there a requirement for that Frame Size, 640 x 480?
No, not really, but it looks fine at the resolution and I wanted to keep it low-ish and 4x3 ratio.
I will try using the default of 720x576, another good lead.
>>You say that you can submit an AVI file. Are there any specifications on what CODEC must be used in that AVI "wrapper?"
No, none. I will go ahead and use the DV PAL CODEC that is chosen as default for the DV PAL standard preset under AVI Export.
>>Also, exactly how are you judging the output files? Are you using the same players, the same monitor, and the same display size for all?
All files are being played on same PC & monitor.
AVI and WMV files are being compared in Windows Media Player at same display size.
Quick Time files played in Quick Time at same display size as the AVI and WMV files. Quality in WMV file is clearly better (I mean video quality, audio is uncompressed in all 3 file types).
I will try exporting as AVI to DV PAL standard and report back.
Exporting as an AVI using the PAL DV Preset (at 720x576 resolution) gives me a video file that looks pretty good (almost as good as the 11MB WMV file) but unfortunately this new AVI file weighs in at 400MB.................
V frustrating, any more suggestions from anyone welcomed.
Just to clarify, the issue is not so much one of quality between different exported files, they are roghly similar in quality (all are acceptable).
Rather the real problem is that the MOV and AVI files I create by exporting (c. 200MB in size) are a whole order of magnitude larger than the WMV files (c. 15MB in size) which is a real problem.