Does exporting a video twice from the same exact project/timeline cause quality loss?

Community Beginner ,
Feb 20, 2022 Feb 20, 2022

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Hello. I have just exported a video from Premiere Pro that took me several weeks to make, and I noticed that a few areas exported a bit weirdly so I'd like to go back into my project/timeline, change those particular clips, and export the entire video again.

I normally export my videos at High Quality 2160p 4k, with a target bitrate of 120. I also normally export straight from Premiere Pro, rather than adding to the Media Encoder queue.

 

(NOTE: I am not putting my exported video into a new timeline to re-export. I am going back to my original project/timeline with all of the original clips and effects so that I can edit those particular clips that I need. I then plan to render it again from Premiere Pro.)

 

Thank you in advance for your assistance!

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correct answers 1 Correct answer

Adobe Community Professional , Feb 20, 2022 Feb 20, 2022
@Celestia Voiceovers wrote:  I'd like to go back into my project/timeline, change those particular clips, and export the entire video again.
Exporting the same timeline as described doesn't decrease quality.
@Celestia Voiceovers wrote: (NOTE: I am not putting my exported video into a new timeline to re-export....)
If you did as described above in parentheses, then it would affect quality.

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Adobe Community Professional ,
Feb 20, 2022 Feb 20, 2022

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@Celestia Voiceovers wrote:

 I'd like to go back into my project/timeline, change those particular clips, and export the entire video again.

 


Exporting the same timeline as described doesn't decrease quality.

 

 


@Celestia Voiceovers wrote:

 

(NOTE: I am not putting my exported video into a new timeline to re-export....)

 


If you did as described above in parentheses, then it would affect quality.

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Community Beginner ,
Feb 20, 2022 Feb 20, 2022

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Thank you! Sorry, I know this must have seemed like a noob question, but you'd be surprised how I can't find any answers for this anywhere and I just wanted to make sure! Really, thank you!

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Adobe Community Professional ,
Feb 20, 2022 Feb 20, 2022

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There's a lot of things that don't seem obvious to someone new to these complex apps. Like ... "importing" doesn't  actually move or copy media to a new location, it simply means that Premiere is importing the metadata for the file/s into its database for that project. The files are still referenced from wherever on storage you already have them.

 

And even if they look similar, the color/tonal controls for an NLE ... an editing app ... work very differently from a stills/photo app. Still apps work with one image at a time. NLEs work with thousands at a whack. Think ... 24fps timeline, 30 minutes long ... 24 x 60 x 30 ... that's 43,200 frames it has to plan out, all with various effects applied.

 

Even a five minute 24fps timeline has 7,200 frames!

 

There's a lot of things like that that can surprise people at first.

 

Neil

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Adobe Community Professional ,
Feb 20, 2022 Feb 20, 2022

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PeruBob's correct.

 

So ... go to the original project sequence. Make the changes to correct things in that sequence. Then export from that, as many times in as many formats as you need.

 

Neil

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Community Beginner ,
Feb 20, 2022 Feb 20, 2022

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Thank you both so much!

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