Noise Removal Problem

Hi Guys,

I’m currently editing an interview and I’m having a problem with noise removal. I am no expert and I’ve looked around before posting this but can’t seem to find a solution. The noise removal works well for removing the background noise. I created a noise profile by selecting part of the track in which nobody was speaking and then applied it to the whole thing.

The problem is that now I can hear noise/crackling only when the subject is speaking. The attached files below might help you to understand what I mean:

If someone could point me in the right direction that would be much appreciated.

Thanks :slight_smile:

I don’t get cracking in the second clip, but I can certainly see where you might. The “s” sounds of the performer are very crisp, pronounced and harsh. Also, the frequency run of the performance has a “valley of death” notch around 3KHz. Tones around 3KHz will just be missing. Both of those are very unusual and could point to a recording problem or a defect in the microphone or preamplifier.

Just the fact that you’re already chasing down noise issues seems to indicate you have equipment problems.

You might tighten up the smoothing number to get rid of the noise “halo” around all the words. Do you understand what we’re doing there? We turn off noise reduction around the words to keep from creating Donald Duck sounds, but you have to tune it just right.

Is the performer on headphones? Trying to listen to speakers during live performances can cause odd problems like this.

What is the microphone and how is it used? There are filters and effects to help many of these problems, but it will always be a patch job and it takes a lot of time.

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Hi kozikowski, thanks for your quick response.

Yes this is exactly what I meant. I have messed around with the frequency smoothing in the ‘Noise Removal’ options but I can’t seem to get rid of the noise halo. The audio is actually split from a video file. When I’m recording the interviews my setup is to use an Audio Technica Pro88w Lavalier System connected to a Canon HF M52 camcorder. I then split the audio in Power Director and exported as waveform into Audacity.