Noise reduction not applying to beginning of clip

[henryctaylor]

There's a bug in Premiere Pro which results in the hiss reduction or certain audio effects not being applied to the first 2-3 seconds of audio when exporting.

After looking this up on the Adobe forums I found other people with the same issue, and they were advised to edit the audio in Audition and reimport into Premiere Pro. I am having the same problem in Audition however.

I capture my noise profile, apply the adaptive noise reduction (or dehiss or whatever) and the audio sounds fine in the program. But when I export the first 2-3 seconds have the original hiss and you can then hear the effect kick in.

Can anyone help?! I offered to start doing video for my work and this is driving me up the wall.

[_durin_]

Adaptive Noise Reduction is just that - adaptive. It identifies sources of dynamic noise over time, then reduces them.

If your clips don't have a few seconds before the in-point with which to apply the algorithm, you can often just copy/paste a few seconds at the beginning of your recording, run the effect, then delete that section. Dropping a marker after you paste the selection (while it's still selected) will make it simple to select that range again for deletion.

Otherwise, you might want to try the more manual NR tools. You'll have more control over what's identified as noise and how drastically it's reduced, and can make several light passes for better results.

[henryctaylor]

Thanks, I will try the pasting suggestion.

But although I mentioned Adaptive Noise Reduction, it doesn't matter what effect I use – it's still not being applied to the first few seconds of exported audio.

Pretty terrible bug given the amount I'm paying to Adobe each month.

[SteveG_AudioMasters_]

henryctaylor wrote:

But although I mentioned Adaptive Noise Reduction, it doesn't matter what effect I use – it's still not being applied to the first few seconds of exported audio.

It certainly happens with ANR, and the reason is explained above. But I've never had this problem with any other effect, and if this really was an issue/bug it would have been mentioned more than a few times before. And I'm afraid that it hasn't been...

[SF Bay Film Editor]

No-wah!  This is failed design.  No one familiar with editing features successfully would tolerate such a wayward plugin as a normal software feature. 

[HSBurton]

I know I'm a little late in replying, but I just experienced the same problem and came up with a solution. If you have a few seconds of audio before your intended start point, you can apply the ANR effect, render and replace the clip, then cut it down to the desired start point. Hope that works for you. 

[juliac31337575 · Accepted solution]

For anyone needing help with hiss in Adobe Premiere CC 2017

1. Apply Adaptive Noise Reduction

2. Fix audio to your liking

3. To get rid of the hiss that still remains in the first two seconds you first need to make the clip a little longer at the beginning and then go under Effect Controls and scroll until you find Audio Effects: volume, then add a key frame at the beginning of the clip where you will adjust the level to -10 (or whatever level works for your project) and then add another key frame where the hissing eventually stops in your video and bring the noise back up to 0 with that key frame.

I've been doing this with all my audio that needs it and this has worked like a charm for me. I hope this helps you!

[chrisb92811129]

I've tried all of these and nothing works. If I extend the clip, the audio fixes to where I need to, but then when I try to keyframe the part at the beginning that I have no use of, it just brings back the hiss. It's ridiculous! How come it's taking Adobe so long to fix this when every other noise reduction feature has been rendered obsolete? I get that they want to push Audition, but come on, one working noise reduction function on their video editing platform is kinda necessary!

[ryclark]

There is nothing for Adobe to fix as that's just the way that Adaptive NR works. If you are using it in the Multitrack view Audition just applies it in real time as you play the audio. So what it does isn't locked in to the file when you change the keyframes since the Multitrack view is non destructive. There are a couple of ways to make this work in your scenario. Either apply it destructively in the Waveform view and save the NR audio as a new file or mix it down to another track in the Multitrack view.

[chrisb92811129]

Why would they think you'd want the beginning of the file to be jacked up? I just dont get it. I ended up extending the file, exporting, importing back in, then cutting the extended bit. Huge pain but works. Not impressed considering its 2017. Thank you so much for a quick reply and willingness to help though. You are appreciated.

[SteveG_AudioMasters_]

chrisb92811129  wrote

Why would they think you'd want the beginning of the file to be jacked up? I just dont get it.

The thing about Adaptive NR is that it looks at the conditions over a couple of seconds, and calculates what it thinks will be appropriate NR from that. It can't predict anything previous to that when it doesn't exist. If you can extend your selection to include an earlier bit, then that's fine - you will get everything you want with NR. But just selecting the bit you want NR to apply to simply cannot work with Adaptive - you have to use the noise print version if you want to do that.

[fredm60269727]

OK so this works for everything BUT the first couple seconds.  But it solves the problem of all other clips as long as the noise print is similar.

Cut the audio but do not apply the noise reduction.

Right click sequence and create new sequence from clip.  (a nested sequence)

select the audio clip in the nested sequence and apply the noise reduction to the whole audio clip. As long as you don't cut that clip it will work through the nested cuts.

I do think that there's got to be a way to code it so the once the clip is analyzed and a noise print established, that info could be cached...but I'm just a video editor.

[ryclark]

fredm60269727  wrote

I do think that there's got to be a way to code it so the once the clip is analyzed and a noise print established, that info could be cached...but I'm just a video editor.

Yes there is and it already exists in Audition. It is the standard Noise Reduction effect that is a feature of Audition. However this only works as a process so can only be applied to an audio file that already exists. This is unlike Adaptive NR which can work in real time playback but hence suffers from the two second delay problem, which is the time it takes to analyse the noise before it can apply the reduction.

[fredm60269727]

I understand the concept of adaptive noise reduction.  My point is that the app should be able to analyze the cut audio clips on the timeline and render those so that there isn't any un-affected noise at the edit point of every audio clip.  I'll gladly live with a couple minutes of rendering in order to have clean audio.  99 percent of the time the audio clips exist I work with have more than enough heads (unused) at the beginning of the clips to do whatever needs to be done. I understand that the initial tweaking of the affect has to be done in real time and that there is no way around having a couple seconds of delay before the affect is heard.  But once you've got it where you want it you should be able to render in out with clean audio from in point to out point of every clip the affect is used on.

I also understand that you can do this in Audition.  But every time I use Audition I just end up with a mess of files and clips and extra sequences. That was the WHOLE PURPOSE of introducing the Essential Sound tab in Premiere. I saw the demo at NAB and I don't recall there being any two second buffer period in which the affect was not working when they played the clip on the timeline. Maybe there was (it was loud). 

At the very least when the finished piece is exported out the affect should be clean.  There should be no unaffected audio because you are not exporting out live to tape (an assumption). The app can take as much pre roll of each clip that it needs to make it clean at the in point of the clip on the timeline. Or the app could use the info it gathers from the in point and the go back and apply that to the first couple seconds. Otherwise this feature becomes useless because no client can live with the first 2 seconds of every edited audio clip on the timeline not getting the noise reduction it needs.

[SF Bay Film Editor]

Yep.  Started to wonder if I should just think of Premiere as shareware that MAKES you pay.  What will it take to fix this??

[mouchyn]

ryclark  wrote

This is unlike Adaptive NR which can work in real time playback but hence suffers from the two second delay problem, which is the time it takes to analyse the noise before it can apply the reduction.

I don't understand this at all. If it works in the real-time preview when playing the timeline in Premiere, why doesn't it work on export? I understand what the ANR and DeNoiser effects are doing, but I can't wrap my head around why it works with no delay in Premiere, but not on export.

[SteveG_AudioMasters_]

mouchyn  wrote

ryclark   wrote

This is unlike Adaptive NR which can work in real time playback but hence suffers from the two second delay problem, which is the time it takes to analyse the noise before it can apply the reduction.

I don't understand this at all. If it works in the real-time preview when playing the timeline in Premiere, why doesn't it work on export? I understand what the ANR and DeNoiser effects are doing, but I can't wrap my head around why it works with no delay in Premiere, but not on export.

The delay isn't an actual playback delay, as such - it's the delay before the adaptive NR can become apparent in the preview playback, and all adaptive systems have that as an unavoidable characteristic.

[MarkCom1]

I found another way that I find works best for my videos to get the Hiss out of the Adaptive Noise Reduction at the beginning. Here are the steps:

1) Add Adaptive Noise Reduction to the clip

2) Add Constant Gain at beginning of the clip; a time length of (00:00:00:10) should do

3) Go to Effect Control and click on the clip you added Adaptive Noise Reduction on and go into edit.

4) A window will pop up saying Clip FX Editor. You can leave the Adaptive NR preset on Default

5) Increase the Signal Threshold from 0 to 10... (and can play around anywhere above 0 to get rid of the hiss at the beginning)

Hope this works for you

[@fred.camera]

I was scratching my head over this one all night, then it occurred to me.. two words:

Render Replace

[christopherl66837454]

This is the quickest way I've seen. Thanks!

[blockii]

Could you explain it a bit more specific for me please?

[dagalumin]

Open the context menu (right click) on the audio track, select Render and Replace: Premiere will render the audio effects, generate a WAV file and substitute the audio track with it. This new audio track will still have the hiss, just cut the starting seconds to remove it.
Save a copy of the project before doing that because you will loose the possibility to adjust the audio effects settings, of course.

[madduck85]

This is your answer!

[url edited to YouTube direct] COMPREHENSIVE Guide: How to Remove Background Noise, Buzzing, Hum in Premiere Pro - YouTube

[stewartr33118553]

Great video suggestion - properly and easily solves the problem!

[LEAD_Media1]

I must agree. ANR is not a tool I use at all to fix noise anymore because in the real world where I do my work and shoot the realities are much different. I always go directly to audition. I have tried every which way to get that hiss out and it does not work. So its not a bug then it is flawed design work. Take from some who has been software developer. I am a big fan of premiere just not this tool. To me if audition works better you will always go there because you will want to deliver quality work and not spend time trying to figure out to get ANR to work better or just you workflow to function within ANR. I think adobe should stop ignoring its customers and make it the way we want it because we are paying for it.