Sometimes after I've done some editing work in Premiere Pro I discover that an original video capture had some buzzing like an air conditioner in the background through part or all of the clip. To avoid having to start my editing from scratch after running Noise Reduction in Audition, I've developed the following procedure. NOTESThis covers all Sequences in the Project at once.This literally replaces the original MTS file with the repaired MP4, both in the assets list and in the timeline(s). PROCEDURE 1. In Audition:open the original capture video (and save it as a new file)do the noise reduction (and save the file) 2. In Premiere Pro:create a Sequence that’s 1080p (the size of the original videos I've been recording/capturing)place the original video recording/capture into itplace the corrected audio track into it, and be sure the wave forms are lined up exactlyMute the audio track of the original videoexport that sequence to a new MP4 file (H.264 - Match source, High Bitrate)Note: do not import that new MP4 file into the project first; it will handle that for youNote: it doesn’t matter what sequence you have as the active timeline tabin the list of assets at the left: right-click on the original video capture fileclick "Replace footage”browse to and select the new MP4 file you just exportedsave the Project Is that the best way to proceed, or is there an easier, more direct way that I'm overlooking? Thanks!

Inspiring

Question

Noise reduction after editing video

Forum|Forum|5 years ago
February 6, 2021
4 replies
2772 views

Sometimes after I've done some editing work in Premiere Pro I discover that an original video capture had some buzzing like an air conditioner in the background through part or all of the clip. To avoid having to start my editing from scratch after running Noise Reduction in Audition, I've developed the following procedure.

NOTES

This covers all Sequences in the Project at once.
This literally replaces the original MTS file with the repaired MP4, both in the assets list and in the timeline(s).

PROCEDURE

1. In Audition:

open the original capture video (and save it as a new file)
do the noise reduction (and save the file)

2. In Premiere Pro:

create a Sequence that’s 1080p (the size of the original videos I've been recording/capturing)
place the original video recording/capture into it
place the corrected audio track into it, and be sure the wave forms are lined up exactly
Mute the audio track of the original video
export that sequence to a new MP4 file (H.264 - Match source, High Bitrate)
Note: do not import that new MP4 file into the project first; it will handle that for you
Note: it doesn’t matter what sequence you have as the active timeline tab
in the list of assets at the left: right-click on the original video capture file
click "Replace footage”
browse to and select the new MP4 file you just exported
save the Project

Is that the best way to proceed, or is there an easier, more direct way that I'm overlooking?

Thanks!

This topic has been closed for replies.

R Neil Haugen

Legend

You can go to the menu system, it's a little bit different between Macs and PCs. On the PC, it's in the Edit menu. "Edit in Adobe Audition".

That has two options, send clip or send entire sequence. whichever you choose, it opens Auditiion with that file or sequence loaded. You work in Audition, then save and depending on the way you do it, you get either a new audio track in Premiere or you get a replaced audio track in Premiere.

And unfortunately, there's too many possible choices to handle in a forum post. You really would need to go to the help about using Audition, and also I'd suggest asking questions about the forth & back Premiere/Audition/Premiere process.

These are both complex apps.

Neil

Everyone's mileage always varies ...

R Neil Haugen

Legend

Agreed with the other Neil ... on everything.

My workflow on this would be to do all the editing in Premiere, then once done, send the audio to Audition for the cleanup. Which hath the far better toolkit for such things.

Then just send the stems back from Audition ... or occasionally, I've just exported a new file, dropped that back in Premiere as replacement audio on the sequence.

Neil

Everyone's mileage always varies ...

J

JayNewWebAuthor

Inspiring

I'd sure appreciate it if you'd please elaborate on the details on this (as I already requested), and on the terms you used.

Thanks so much!

R Neil Haugen

Legend

"Scale to" is only there because it means that the program computes the new frames at that frame-szie, and doesn't have to re-think for playback. It's always been assumed by the development team that it was the option for low-powered machines that struggled with playback.

However ... *any* changes the user applies are computed from that reduced framesize. If you have 3840x2160 "4k" media, and use set to frame size to place that on a 1280x720 sequence, it re-computes the image to 1280x720. Now you want it either larger or smaller, it takes that 1280x720 pixel frame image and re-computes.

So ... take the original media, "scale to" down to 1280 ... then decide you want to zoom in 20%. It upscales that 1280x720 image to get that zoom for you.

Whereas, if you use "set to framesize" ... all calculations are done from the original media's 3840x2160 pixel data. It takes more on-the-fly computation from the machine, but ... gives a much higher quality of resizing.

Neil

Everyone's mileage always varies ...

neil wilkes

Legend

The main thing I would do is to avoid this process altogether in Premiere and use a proper Audio workstation instead, such as Audition (or whatever you use). These generally have far better tools and the NR tools in Audition are far superior to those in premiere.

Secondly, why oh why are you continually degrading the audio by outputting as AAC-LC in your MP4 files please? Every time you process a lossy audio codec and render to another version of the same lossy data reduction algorith, you remove a lot of the good work done by using the lossy codec again. This adds noise onto noise onto Codec Fluff and really should be avoided at all costs - always, always fix & mix audio to lossless PCM - never use AAC, LC or otherwise.

Audio is 50% of the production - not an afterthought - and should be treated as such too

A

Andy 1968

Inspiring

I take it you don't like Premiere Pro's noise reduction.

J

JayNewWebAuthor

Inspiring

Uh... Premiere Pro's noise reduction?

Didn't know there was such a thing. Sorry to have to confess that.

Can you please point me to how to do this in Premiere Pro directly, with a clip that's already been edited? Or I can look.

A

Andy 1968

Inspiring

You can add noise reduction to the clip or the entire track. On the menu bar go to Windows and select show track mixer. At the very top left of the track mixer you will see a little arrow like object. Select it and you should have the option to add effect to the different tracks.

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