Huge flaw (maybe bug) with proxy

[1jhill]

OK guys looks like the whole editing with a proxy not effecting output quality is 100% wrong. I kept wondering why my rendered videos in pinnacle look better than video studio and have figured out why. I like using video studio because I can just make a proxy and edit with that and its much faster than having to re render every change like pinnacle however the proxy does effect the final result. I have just used a 4k video and I had to zoom close and the whole reason I use 4k is because I'm not sure when ill need to zoom or when I wont etc.. so if shooting 4k I can zoom after the fact and keep clarity. So I make my proxy then zoom and everything is blurred, I'm thinking ok when final render should be using the source (so they say) so it should be clear. well final render is 100% blurred. Re open the project, delete the proxy and use the source file and re render and guess what 100% clear. So there goes the whole idea of being able to use a proxy in order to edit a low res version of the source for faster, smooth preview playback but rendering the source as output.

This is a big let down for me as it was one of the main reasons choosing Videostudio since I cant edit raw 4k on my system. I'm thinking this cant be right as it makes no sense to work like this otherwise might as well not shoot in 4k since it wont get used anyway.

[tletter]

OK guys looks like the whole editing with a proxy not effecting output quality is 100% wrong.

I edit in 4K using Smart proxies and your assertion is 100% wrong.   If you search this forum, you'll find several discussions about this issue.  Bottomline - disable Smart proxies before rendering.

https://www.youtube.com/user/tletter
tletter

[1jhill]

OK guys looks like the whole editing with a proxy not effecting output quality is 100% wrong.

I edit in 4K using Smart proxies and your assertion is 100% wrong.   If you search this forum, you'll find several discussions about this issue.  Bottomline - disable Smart proxies before rendering.

https://www.youtube.com/user/tletter
tletter

what do you mean by disable? so your making the proxy then editing and then doing what? I see no such option to just disable, so are you deleting the proxy and then re opening the project?. Also if your saying I have to manually disable the proxy before rendering then that goes against what corel has advertised or defaulted. their whole point of using a proxy is to edit in lower res and then output in high rez, If I have to do something to force that to happen then that is not working as advertised.

you can test this yourself very easily. shoot something in 4k make a proxy in low rez (use very low to exaggerate the issue) then zoom in and then render. it will be a blurry mess. re open the project and then delete the proxy and save then open and render and it will be clear. once the proxy is gone the final video is clear but I would say this is a work around and not how it should work or function. It should use the 4k source as the file to output not the proxy.

[asik1]

1jhill, calm down, you are correct. You just not realized enough that a workaround is one of VS's features and for tletter it's obvious.

[lata]

1jhill

I think the render quality issue and using Smart Proxy was reported first I believe using 2018, yes a bug
I had assumed Corel had fixed with a service pack, if you are using the upto date version then obviously not.

Users found that disabling Smart Proxy was sufficient and deleting the actual files was not required, helps if you wish to return to editing.

To disable Smart Proxy
Settings – Preferences – Performance tab – deselect Enable Smart proxy, (other settings available)
Settings – Smart Proxy Manager – deselect Enable Smart Proxy

Hope that helps

[1jhill]

Cool thanks for the tip that should make it easier. That’s disappointing that the proxy’s don’t work as they’re supposed to but at least there is a work around. I’m just glad I figured it out because like I said all my videos quality wouldn’t be as good as other program, some were very noticeable and some not so much. Once I used zoom though it finally became very apparent what was going on.

[RickMen]

FYI - I'm on Ultimate 2018 and use smart proxy all the time for my 4K videos and I do not experience this issue when rendering my projects. I render my project (without disabling smart proxy) and get good quality output.

What I do find disappointing with the rendered file is that it's rendered to 60 Mbs quality whereas the source file is captured at 100 Mbs.

[1jhill]

FYI - I'm on Ultimate 2018 and use smart proxy all the time for my 4K videos and I do not experience this issue when rendering my projects. I render my project (without disabling smart proxy) and get good quality output.

What I do find disappointing with the rendered file is that it's rendered to 60 Mbs quality whereas the source file is captured at 100 Mbs.

Well that’s odd. I’m on 2019 I didn’t realize I never updated my specs, so maybe something broke in 2019. I never really noticed it before until working this project and had to zoom then it was instantly apparent something wasn’t right.

For your MB’s quality you can make a custom spec and change your final quality.

[RickMen]

I tried that no luck. Render software maxs out to 60mbs.

[lata]

Hi Rickman
When you insert the first video to the timeline you should be prompted to change / match the project properties, they should now be set to use the high data rate of 100kbps ish, view Project Properties (Alt+Enter)
From Share choosing Same as Project Settings should render the project using the higher data rate, notice the details in the panel when choosing this option
Changing that to Same as First Clip would also work, providing the first clip is 100mbps

Creating your own template, I assume your videos are Mpeg4

Using Settings – Movie Profile Manager – Mpeg4
Choose the Add option and browse for your video file (file path)
Provide a profile name

Do not Edit this template as it will not retain the 100Mbps, simply close the panel

Template available from Share Mpeg4
That should render the project using the video files settings.

[RickMen]

Hi Lata

I previously have tried both of those suggestions but still maxs out at 60mbps.

[lata]

Hi
Strange...
I have a few sample videos using 100mbps to use for testing
Using X10, 2018 and 2019 each was able to retain the data rate
When you do Share does the properties window show the high Mbps rate or 60Mbps

This is what I see………….

NTSC drop frame (29.97 fps)
MPEG-4 Files
24 bits, 3840 x 2160, 29.97 fps
Frame-based
H.264 High Profile Video: 105600 Kbps
48000 Hz, 16 Bit, Stereo
MPEG AAC Audio: 128 Kbps

[RickMen]

The properties windows shows 100mbps but when I use mediainfo to query the rendered clip it displays 60 mbps. Also the rendered clip is approx 60% of the size of the raw file. The conclusion I drew was that the properties windows was misleading. Ken Barry suggested mediainfo.

[lata]

Indeed strange
The rendered video I see is just a little larger than the original both in file size and data rate
Checked using Media Info and Windows Explorer properties.

[RickMen]

Indeed very strange. I wish I had your luck with the rendered outcome. I spent too many hours trying every which way to achieve the desired outcome but no cigar.

The only differences I can see from available info is my file is PAL 25 fps and you are on w10 I'm on w8.1.

Any ideas on what I should do?