2019. The problem is still around.
I cannot believe how far back this has been an issue. Anyway, I can't really get a good fix on this but I've noticed from all my testing there needs to be some talking or audio noises for the first few seconds for the denoise to take affect. No matter what you say or what sounds come in the first second, it's gonna have that weird noise where it works its way into affect. I dunno what to do. This is ridiculous .. one small thing is causing me so much problems. I refuse to do all those other work arounds people talking about export to audition and then back into premiere, screw that.
I wish they would just fix this though.
*UPDATE/SOLUTION*
I have spent a whole day fixing this. It just doesn't work no matter what you do. The DeNoise effect is designed to only kick in when it has some sound before your actual video starts. Basically, I just talk jibberish in my recording for a few seconds and then properly start my video/talking. This lets me set the effect in premiere, the start of your voice or audio whatever will sound off and then you'll hear denoise start to work. But the jibberish at the first few seconds is what you want to cut out and boom... you have yourself a denoised track. That's just how it works, it needs audio to start the effect. Unfortunately if you cut that first few seconds the denoise then restarts itself and it will do the same thing to the new part you just cut which is where you really want your video to begin... I have 2 methods. I probably prefer Method 2 because once you've done it it's done and when you finally export from Premiere the video is complete. Method 1 requires messing about after it's exported but only takes like 1 minute or less. And it's free.
This is for Adobe Premiere (MP4 videos)
Method 1 (Adobe Premiere + MPEG Streamclip):
This free little beauty has been good to me. Anyway, with this little program you want to do all your stuff in premiere as normal. Add the denoise whatever and do everything you normally do only this time at the start of your video try to go back a bit by dragging the video and audio, maybe 10-20 seconds? Make sure the audio has noise/talking whatever, so denoise effect picks it up to work with. When your real video starts you make a cut there with the audio and video both cut at the same place. This is where your video would begin. The jibberish 10 seconds or whatever stuff before that is what you need for this to work. You need to export your video as you normally do.
Once it's done you load the video in MPEG Streamclip and seek a bit to where your video just starts out. I use a fader in premiere so I just go to the black screen before my video starts. I select the video from there (the letter I on keyboard for Select IN (this will select the whole video) then just Control S or File > Save As. Boom, the video literally takes like 10 seconds to save or more. No encoding done. The video is untouched... thats why this program is so good.
Method 2 (Adobe Premiere + Adobe Audition)
You'll need Adobe Audition for this obviously. Same as above... you want voice/sound before where you want your video to start. That is key... you NEED some sound/voice for the denoise to work properly on where your actual video starts. This method just do the same as above and then if you have Audition you need to go to Edit > Edit in Adobe Audition > Sequence. Leave everything the same except change Video: None. Audio Clip Effects and Audio Track Effects can be set to Transfer Settings or Remove All if you add denoise in Audition instead. It will open your audio tracks in Audition. It's not that hard to learn. I figured it out in 5 mins. When it opens, you'll see your audio in the middle. Make sure you delete all the other tracks that you don't want denoised. This is going to denoise your whole track and save it without the cuts. It will just be one long track (don't worry the cut effects/transitions/fades are all there). Go to the Mixer tab above the audio track and you will see your effects if you added them in Premiere. Disable them all except denoise. You can also add denoise here just like premiere. It's all the same. Play your audio a bit just to make the magic work. Then go to Multitrack > Export to Adobe Premiere > Export. It will go straight back into Premiere asking which track you wanna add it to (probably just go with new or a track thats empty) then you have yourself a new audio track with denoise. Now you just replace it with the original (I just delete original then move the new one up to the spot. Its all synced the same dont worry.) Now all you need to do is just cut the jibberish part out and you have your video begin where you want. The denoise will now be all there even if sound is at 1 second thanks to the jibberish sounds at the start. Think of Audition as permanantly denoising your whole track no matter where you cut it will stay denoised.
Done. Thanks. *wipes forehead*
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