Isolate and remove background noise

Hi everybody,
I made a voice recording of a luncheon I had with my colleges dean using my iPod and as I listen to it the iPod touches headphone mic picked up a lot of background chatter in the lunch room. I am curious if there is software out there (preferably something I could try before I buy) that would help me isolate and edit out that background chatter and noise?

asdfgqwerty wrote:
I'm new to Audition (as of today!),
Yes... it's beginning to show....
This virtually eliminates any quiet noise, including background music and speech.
So what exactly does this achieve? The OP wants to keep the speech...
MusicConductor wrote:
I am facing a strange urge, for the first time, to believe that reincarnation is possibly a true thing.
As in - without any recollection of a previous existence? I'm starting to wonder the same thing, only I think it may be worse than that.
I would suggest to anybody in this situation that they head over to AudioMasters, and read all of the Audition FAQs very carefully, and don't post anything at all unless there is something that they seriously don't understand. Posting answers to questions whilst not in posession of any basic information about what's possible and not possible with audio processing and why is just going to make you look pretty stupid.

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Can Logic plug ins remove background noise from interview?

Can Logic plug ins remove background noise from interview?
A friend with an important interview recorded in noisy conditions has asked me to help remove background noise - never done this technically.
Is there a Logic or third party plug in that would could remove background noise from a spoken word interview? Have tried EQ which improves the sound slightly but not a solution.
Anyone with specialised knowledge of this sound editing operation?
cheers
MS

There are several 3rd party denoisers, they mostly work by first 'learning' the noise footprint of the audio, for which it is best to record a few seconds of silence (with an open mic).
These will all do a decent to excellent (it all depends on the source material) job:
http://www.kvraudio.com/get/3199.html
http://www.kvraudio.com/get/2104.html
http://www.kvraudio.com/get/2791.html
http://www.kvraudio.com/get/1182.html
http://www.kvraudio.com/get/1029.html
Addit:
Is it that background noise (traffic, talking etc) drowns out the words? Then you'd probably have more luck with (radical) eq-ing and/or notch filtering to find the most dominant frequency range of the speaker in relation to the background noise.
As an interviewer myself I will point out that even with a small disctaphone you need to have some awareness of how the microphone picks up things. As soon as you nead to lean towards whoever you're talking to, just to make sure you're audible, the dictaphone on the table is probably recording mainly ambient noise, the interview being part of that. This is especially a problem when interviewing in a busy public space.

Removing background noise on only one of two tracks

Hello and thank you in advanced for your help. I am new to STP but well versed in FCP. I've recently discovered the wonderful feature of removing background noise in my video clips.
I'm having trouble with one instance though: I have footage shot with a microphone into only one channel of the camera. In FCP, I highlight that channel of audio and "send to" STP just as I have other clips. This time, however, no matter what I seem to try, both left and right audio channels show up in STP and I can't seem to separate them in order to remove the hiss from only one channel.
If I proceed as normal and select a portion of the hiss to set as "noise print" I can only select both tracks, not only the track I want. Probably a matter of a simple button, but I don't know STP well enough and the manual was no help. Anyway, continuing with the process to "reduce noise" and adjusting the parameters I hear almost no difference when turning the filter on and off.
I'm not sure if I've explained my scenario the best, but I'd appreciate some assistance.
Thank you!
Eric P

Eric,
Make sure the stereo file is open in the Editor as an Audio file. Click inside the editor window area and move your mouse pointer up to the top of the left channel's window border. If done correctly a tiny "L" will appear. This lets you know you can select the left channel, or portions of it.
Do the same for the right channel. However instead of moving the mouse pointer to the top area of the window, move it to the bottom of the Right channel's pane. Look for the tiny 'R."
Proceed as normal: Set a noise print, adjust parameters, and process. You'll find only the selected channel will be processed.
-paul.

Remove background noise from imovie '09

Can I remove background noise from imovie '09 more than one clip at a time?

Ya you got it rightly I read a guide here http://www.kenstone.net/fcphomepage/basic_audio_filtertutoria.html
so I am aware of basic things at least.Like you gave an example of Main Parameter in your previous reply similarly I feel if some where I can get these parameters in Filter what do they do that may help.

Removing background noise from captured clip

I wanted to edit an audio which was captured with Video also it contains some background noise.Which filter should I try for this in FCP.

I read that tutorial it is nice but I have only Final Cut Pro 4.5 HD not the SoundTrack Pro is there no option in FCP for editing audio I do not have much to edit I have to remove sound of a crow and in another video captured audio is having sound very low without increasing volume it is not possible to listen to it.
So for this any thing that can be done within FCP.
I have only Soundtrack 1.2 which is not professional version.

Removing background "noise" from an interview recording

Hello!
I was wondering if it was possible on Soundtrack Pro to remove continuous background "noise" from a recorded interview? An example would be someone clicking a pen or a tapping his foot during the duration of the interview. Any advice would be extremely helpful.
Thanks so much!
Ted

It can, but what you are describing are not continuous, but points of sound. Continuous refers more to hums and vibrations, things like air conditioner noise or the sound of traffic. That said you can still give it a try. You can also try running the click and pop filter and see what you get.
Regarding these point sources I have better luck removing them with Adobe's Soundbooth. Their cascading frequency display allows you to draw irregular shapes around sounds like these and then extract them without disturbing the other sounds around them.
Take a look at the manual.
Good luck

Remove Background Noise

Im trying to remove some background noise (pool sweeper clicking) in a video documentary of my mother-in-laws life (has cancer).
It is a really annoying sound (clicking) I have tried to set a noise print and remove it but i cant seem to get a print of just the noise because she is talking all the time.
I am a new-bee to sound track and I'm unsure if I am doing the right thing. is there anyone that can give me some idea on what i would need to do?
Any Help / Tutorials would be greatly appreciated.
Thanks
-Russ

If there are various sounds in the background, the noise and ambient print may not work so well as it covers too broad a range of tones. You might try a very narrow EQ reduction, trying to find the frequency the click is at. You probably won't be able to get rid of it completely, but you may be able to reduce it some.

Removing background noise CS5

Within my Premiere Pro project I extracted audio to soundbooth and used the Clean Up Audio > Capture Noise Print to reduce background noise.
I set the Noise Reduction to 100% and Reduce By 30db which is what sounded best.
It did indeed removed the background noise but made the audio as if it was coming out of a can.
Here is the Original Premiere Pro asset and the After result by Soundbooth.
ORIGINAL https://www.youtube.com/watch?v=mjP9Q7fwAj8
AFTER https://www.youtube.com/watch?v=ufMeEepsoGQ
Any suggestions? Thxs.

Reduce the settings, try 50% and 15db, see what that sounds like.

Advice with removing background noise from recording

I made a recording but there is an extrotor fan noise going in the background which is really off putting, is there a way to edit this?

Hi Sarah, and welcome to the forum!
Regarding your question, any solution,even the most sophisticated ProTools-based one, uses some sort of comb filtering/eq to remove those unwanted frequencies. This means that your sound will suffer to a certain extent because the frequencies occupied by the fan noise overlap with instruments/voice in your recording, and when you remove the frequencies associated with the fan, you also remove part of your music.
Having said that, you can try the following and see if it works for you:
Choose a parametric eq plug-in (you didn't mention which s/ware you're using, but most programs that can record do also have eq, so I'm assuming you have one) and boost generously one of the frequencies below 1000Hz and sweep it across the frequencies field. You should find a spot where the fan noise is most prominent. Now narrow the eq curve and redo your sweep - same procedure than before. Then do it again with - yet again an even narrower eq curve. Your goal here is to zoom as much as possible on the offending fan frequencies. Once you have found them this way, cut around 2-4db. You will remove sound elements in your music as well as fan noise, but that's as good as you'll get.
What you can also do is try to use a mistake creatively. Eq you track radically, experiment. Use the fan noise as if it were another instrument. "Play" it. Don't be afraid to mangle the recording, push the envelope. Who knows, something interesting might come out. I always liked turning a disadvantage into an advantage
All else failing, you just might have to re-record it, and if you do, take a chance, do something different; don't try to emulate what you had before because it will only hinder you. Try something new.
Hope this helps a little.
Ant

Removing background noise from photographs

Hello -
I have a handful of photographs that contain background annoyances such as basketball hoops, doors, etc. I am new to Elements 7 and was wondering if there was a simply way to address this issue. Again, I am a newby and not yet thoroughly famliar with the Elements tool set. I've provided an example of what I'm attempting to correct.
If I could get a step-by-step formula, that would be great!
Thank you.

There are many ways to remove unwanted items and this is a whole topic in itself. However since your example has so many things going on in the background and since it is such a great group shot I tried a studio portrait look:
Here's how:
1. Add a blank layer above the picture.
2. Set the Foreground/Background colors (color chips at bootom of toolbar) to light and dark shades of brown.
3. Apply the Clouds filter to this layer to get the portrait-like background. If the cloud effect looks to harsh it can be softened with a Gaussian Blur.
4. Add a Levels adjustment layer above the picture layer but do not make any adjustments, Just click OK.
5. Group the background layer and Levels layer.
6. At this point all you see is the background. Now actvivate the Levels layer and fill with black. This restores the picture.
7. Set the Foreground/Background colors to their white/black defaults.
8. Use the Brush tool with a hard brush and paint with white to reveal the background. If you paint to far and cover one of the persons, switch to black and paint to restore him/her. While painting you can type "X" to toggle between the black and white. Note that for the subject's hair the results looked more natural using a soft brush.
9. I also used the Clone tool to remove some flash spots on the faces and glasses.
10. Finally cropped to a 8x10 proportion.
If you like this I uploaded the full size picture to
http://www.pixentral.com/show.php?picture=1RI3O47sxKtNYqO0xth1CES4djZvFU
Right-click it to downlaod to your PC.
I can also send you the psd file if want to tweak it some more.

Removing background noise

Hi All
I am new to imovie and took video on my iphone 4s and converted in imovie added music and i thought great went to put on you tube and facebook and couldn't because of the music and copyright issues
i can take the music off of the video but then i get wind noise (the video is me on my trike) how do i get rid of wind noise in imovie 11
thanks in advance
eon

Trouble is, in my experience, the person who yells (or the dog that barks or the car horn that honks) usually does it right in the middle of somebody's dialogue, and there's no way to untangle the noise from the words. You end up losing the word or a syllable, and then have to resort to a voiceover, which usually doesn't match well for one reason or another, often because the ambiance or surrounding sound is different. If possible, you have to get the speaker in the same place he originally recorded in, to repeat the word, or better, the whole sentence for the microphone.
But yes, an isolated noise is easily removed with the pen tool in an enlarged view of the audio track. In fact I can mute overly loud P and S sound in speech just by drawing down the audio line at exactly the spike in the audio waveform.

Background Noise Removal Levels Changed to 50%

I've repeatedly encountered an unpleasant problem with the Background Noise Removal feature in Final Cut Pro X, both in 10.0.0 and 10.0.1. If I turn Background Noise Removal on for a clip in the Timeline, and adjust the level to something other than the default of 50% (which creates squarium-like sound - I can't think when such a high setting would be appropriate), I eventually find that FCPX has thrown away all my levels and changed the level to 50% on all clips for which I have enabled Noise Removal. I haven't yet figured out what action makes FCPX throw away my levels (simply quitting and starting again doesn't do it); but this has happened to me repeatedly over the course of the last three months. Has anyone else seen this? - Dan Sallitt

I've not been able to get satisfactory improvements to audio using the Audio Enhancements. The Hum removal always sounds like reverb is added. The Noise Reduction leaves so much to be desired. And, I'm not sure I understand how to use the "Loudness" effectively (it's never been an effect I've used extensively in Logic or STP — there are much better ways to "master" audio and I *prefer* Multipressor [also in FCPX]).
I use Effects > Audio > Levels > Logic > Adaptive Limiter to lower the noise floor and increase the gain for a quasi – noise reduction (there is also a "Noise Gate" effect for this -- a little trickier) and I can notch out frequency band noises with Channel or Linear Phase EQ. But quite frankly, the very best noise reduction I've ever heard in nearly 20 years of searching is in ScreenFlow. You don't have to use it as a screen capture software, it can be used to "add in" audio/video (New Empty Document) and (phenomenal) noise reduction can be had by *just* turning on Filter: "Remove Background Noise". Any "digital artifacts" are virtually imperceptible (and that's at their default setting of 80%!!). After bringing that audio into FCPX, any "enhancements" is just flat out *for fun*. Apple really needs to license or buy Telestream's noise reduction software. [Export options out of ScreenFlow include ProRes and AIFF/LinearPCM... among others.]
One more thing about the Audio Effects in FCPX: YOU CAN SAVE YOUR SETTINGS AS PRESETS!!!! You can't even do that with video effects!!!!! Almost every audio effect has a Presets: menu and at the very bottom is Save Preset.
For most categories, there are: the Final Cut effects; Logic effects; and Mac OS X effects (these are basically the same as you would find in Garageband) --- stay with the Logic effects!

MacBook Air microphone picking up background noise and not my voice?

Hello! I really like my MacBook Air. It is truly the best computer I have ever had. However, I was very disappointed whenever I attempted to use my MacBook Air's micrphone to find that it was picking up the background noise, and not my voice. I can hear my voice whenever I record something, but it is very quiet, like the background noise cancelling software is treating my voice like the background noise and the background noise like my voice. For example, it picks up every little bump on the computer and every click and press of the key, but it won't pick up my voice at full volume! I know it is not a software problem as I reinstalled OS X, and whenever that didn't work, I erased and reinstalled OS X. Any suggestions?

macbook Air condenser mic assy. is easy to remove and replace. (see pic below of Air mic assembly).
Mics are delicate instruments as is their nature, however the damage you experienced is either damage, or defect, nobody can know.
However I can accurately say without doubt its very rare what you experienced.
the little condenser unit could have been defective, and gave out, or myriad other possible's. I cannot pinpoint it over the web, even if I had it in my hands, still couldnt because youd have to dissect the tiny little mics to find out, and nobody will do that, just yank the old, and install the new ones.
a 'painless' repair however to be certain, quick and easy to do.

How to remove background hiss?

What options do I have for removing background noise/hiss in iMovie '09? I used the standard microphone of an HD camcorder and as you might guess there is a lot of ambient noise that I would like to try to remove.

Well, I answered my own question.
You cannot do this within iMovie. Instead you have to export the audio and then run it through another application which is what I did using Audacity. I exported the audio to a .wav file and imported into Audacity. With Audacity, you can sample a bit of audio where no one is speaking using the "Remove Noise..." filter and then apply that filter to a selected section of audio. There's lots of other things you can do with Audacity but all I needed was removing background his and amplifying a few other sections of audio where kids were speaking to softly. It worked great! Once finished with Audacity, I exported from Audacity back to a .wav file format. Then I imported that hiss-free audio track into iTunes which then made it available in iMovie. Before dragging the full hiss-free audio clip into my movie project I first muted the existing full-of-hiss audio track. Because the audio tracks were the same length, it all lined up perfectly.

Background Noise Filter

Is there a filter in Soundtrack 1.2 (other than noise gate) that will remove background noise/chatter from dialogue recorded in a large hall/room? The background chatter is typical of what you'd hear in a super large meeting room with thousands of people present. It's a constant and similiar drone.
The two filter categories from my effects window are Apple and Emagic.
Thanks.

try this in SPPRO.
• open waveform
• drag over the NOISE part that you can clearly identify (the chatter and stuff you want to remove)
• Choose Process > Noise Reduction > Set Noise Print. then
• Choose Process > Noise Reduction > Reduce Noise.
adjust the HUD to taste
refer pages in the SPPRO user manual

Isolate and remove background noise

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