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Activity Forums Adobe Premiere Pro Problems using DeNoiser filter

  • Problems using DeNoiser filter

    Posted by Jeffdriscoll on December 26, 2006 at 9:59 pm

    Ha. Me again. Ugh.

    So all of a sudden (? I don’t know – maybe it was always there, I don’t remember now) – when using the denoiser on two back-to-back clips, going from the first clip to the second produces an audible “pop” that renders when the final product. If the first clip has the denoiser off, then the second plays with out a blip – if the first clip has it on and the second off, then the second plays fine.

    The first clip plays fine from the start – it’s just going from the first to the second.

    Except that it’s not.

    There’s about 2 seconds of dead audio at the start of the first clip, so I sliced it just before the talking begins – if I play from the start it goes from the dead audio (meaning just room tone, which is severly cut down with the denoiser), to the audio just fine, but then going from that clip to the last clip on the track it has the pop again.

    If I take that 2 second dead audio clip and I put it between the two main speaking clips now there’s a pop at the start of the dead audio clip (after the first audio clip plays) and then also one at the start of the second full audio.

    So I don’t understand – there’s a pop between two clips of audio, no pop between dead audio and audio, but yes a pop between audio, dead audio, and audio.

    Any advice? Ugh…. this is turning out to be a nightmare.

    Vince Becquiot replied 19 years, 4 months ago 2 Members · 5 Replies
  • 5 Replies
  • Vince Becquiot

    December 27, 2006 at 1:09 am

    Hey Jeff,

    I remember you mentioning that you applied Denoiser several times to each clip to obtain a specific effect; what happens if you only leave one instance of the effect in there ?

    I’m sure this is going to be a workflow nightmare since you seem to be pretty far along in your project, but one thing to try would be nesting the clips (drag to new sequence) and applying the effect to that new sequence. That might mean isolating different scenes to different tracks and creating a new sequence for each track. I would at least try one to see if that solves your issue and you’ll know you’re getting somewhere.

    Vince

  • Jeffdriscoll

    December 27, 2006 at 2:05 am

    OK – follow my train of logic:
    -Deleted all instances of the DeNoiser on the two clips (there still are a couple other ones on there, but there’s no pop so it’s OK)
    -Apply DeNoiser to the first clip, second clip runs fine (has the hiss, but no pops)
    -Apply DeNoiser to the second clip, there’s a pop. This seems like a good time to mention that the pop isn’t always consistant, sometimes it’s more or less than others and *sometimes* it’s like the audio dampened and slowly comes out of it. I’ve decided that it must be something based on playback, but then there’s the problem of the fact that it renders with the pop. Even if I disable DeNoiser on the second clip there’s still a pop. Also important to note now then that on playback it seems sometimes that the results I’m getting are different each time, still as if there’s an issue on playback.
    -Delete both DeNoiser instances, sounds fine.
    -Apply DeNoiser to *just* the second clip* and there’s a pop again!
    [there is DeNoiser on one other clip in this sequence, but it’s a stereo clip and in a different part of the timeline)
    I have to wonder if this isn’t maybe something specific to that clip (the pop occurs anytime I stop the playback and start it again over this clip). But I brought in a clip from another sequence [although it is from the same source file] and it happened again.

    “I’m sure this is going to be a workflow nightmare since you seem to be pretty far along in your project, but one thing to try would be nesting the clips (drag to new sequence) and applying the effect to that new sequence. That might mean isolating different scenes to different tracks and creating a new sequence for each track.”

    I’m afraid I’m not following here. 🙁 I’m not sure how to apply an effect to a sequence?

    I’ve been reading a lot online trying to research and I’ve found a lot of sources that suggest putting the clips on a submix and applying the effect to the submix. Now I’ve created a submix track, but I can’t figure out for the life of me how to do anything from here on out. [Maybe I’m just thick and not understanding things!]

    THanks again for all your help Vincent

  • Vince Becquiot

    December 27, 2006 at 2:40 am

    A submix actually would work too. Submix are used in the Mixer panel.

    Here are a few tips to get you started:

    If you have ever used a real mixer, it really works the same way…

    Once you have created your Submix tracks, go to the Audio Mixer window. There, you will see your current tracks, as well as submixes.

    They are all set to master by default. Now, at the bottom of the original track faders to which you want to apply effects, change the drop down menu to say “Submix 1. At this point, any effect you add to submix 1 will affect the tracks that are sent (set) to that Submix, follow me so far ?

    To add an effect, look for that little arrow at the top left inside the Audio Mixer window; clicking it will expand the effect menu. Then go the the Submix 1 column and you will be able to add effects from there by clicking those little gray arrows inside it.
    Hope that helps

    Vince

  • Jeffdriscoll

    December 27, 2006 at 3:27 am

    Fantastic! This will seem to work for the effects that apply to every voice in a track.

    Thanks – I think it’ll solve my problems.

    Enjoy the rest of your night (depending on your time zone, I suppose?) and the rest of your holiday season!

  • Vince Becquiot

    December 27, 2006 at 6:54 pm

    Thanks Jeff.

    Glad I could be of some help… Enjoy the rest of your holidays as well.

    Vince

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