Reduce Crowd Noise

Can anyone point me to a tutorial on removing crowd noise.
I recorded my brother;s band at a band and would like to reduce crowd volume.
I know it's not possible to completely cut it out because it will share the same frequencies, but maybe it can be reduced??

Use mics with better off-axis rejection next time you shoot? Or better yet, get a board feed and mix it with the camera nat.
As for what you're already shot, my feeling is that whatever you try will adversely affect the music, which has such a broad bandwidth. If it were just one guy speaking to the crowd, that'd be different. But music...

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Eliminate crowd noise

Does anyone have a simple method to try and reduce crowd noise. I have 5 second thank you clips for a church that someone shot with a very generic camera. Ive tried some time back to reduce wind noise by setting a filter and having STP eliminate that noise.
Must I do the same process to remove crowd noise?
thanks for reading

neverminds, i found a decent method, it isnt perfect
setting noise prints and tweaking sliders. hope some other peeps needed this info
would be nice if the gent used a some sort of mic, but it was a on the go thing they did

What is best filter to decrease crowd noise from background of live band recording?

I have a video of live musicians, the camera picked up more of the ambient crowd noise than I had expected. Does anyone know of a good track effect that would reduce the crowd noise without compromising the music quality?
Thanks,
Sam

Since noise tends to have a very broad frequency spectrum, I don't see good chances to reduce the noise without affecting the music.

Best way to remove crowd noise in an interview

If any one knows the best way to take out or reduce background crowd noise in either soundtrack pro or FCP that would be great. I am kinda a novice with soundtrack pro so if you could dumb down the directions that would be great.
-Wesley Summers

The error message that I was receiving...Field COBL-KOSTL. does not exist in the screen SAPLKACB 0002, was coming from function module EXIT_RFEBBU10_001 and include ZXF01U01. The programming code was attempting to default a cost center when the external transaction code = 661. The coding was removed and the default acct assignment cost center was added to the cost element master data. The substitution also worked correctly as it should.

HP Z400 600W PSU, reduce the noise?

Hello, i bought the 600W psu a few months ago because i wanted to have a great graphic card.
But i think the noise from the computer is way to loud. Im verry sure its the PSU since the 475W version was verry quiet when i tried it.
Can i do anything to reduce the noise from this thing? Open it, replace the fan to a better one perhaps?
I know there are some people who have managed to get a ATX PSU into their HP z400 using a "HP Z400 PSU to standard atx adaptor" but i dont really know how to build a cable like that... Its probably easy but i have no knowledge about things like this.
https://plus.google.com/photos/111388964237560787781/albums/5362166283613539361
If anyone could buid this cable for me and i could buy it i would really appreciate it! Becuase then i could use whatever ATX PSU out there?

Hi,
You might get better assistance on the HP Enterprise Business Forum since you have a professional workstation.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
HP Photosmart Premium C309G, HP Photosmart 6520
HP Touchpad, HP Chromebook 11
Custom i7-4770k,Z-87, 8GB, Vertex 3 SSD, Samsung EVO SSD, Corsair HX650,GTX 760
Custom i7-4790k,Z-97, 16GB, Vertex 3 SSD, Plextor M.2 SSD, Samsung EVO SSD, Corsair HX650, GTX 660TI
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How can i reduce the noise on this video?

I have used Keylight to key some chromokey footage onto a white background.
However, I still have a lot of noise on the video, by this I mean fuzzyness, instead of good rich colors - you can see for yourself if you download a sample of the file which I have linked to here:
http://www.youtube.com/watch?v=-MmBGI-JUMk
Obviously the actual file has proper dimensions unlike the YouTube example! This example also doesn't show the noise quite as well as the actual Flash file, it's a little more intense than it looks here.
How can I make the video fuller in color, to reduce the noise....?
Thanks.

The noise looks like genuine camera noise from poor lighting with ramped up sensor sensitivity. Therefore, as a start, I'd run the clip through a pre-comp and use the Remove Grain effect or tools like RevisionFX' DE:Noise, Red Giant's Key Correct Pro and so on. If it's DV/ HDV or similar, some de-blocking by ways of similar tools is also recommended. This should already improve matters notably. Then, as Sébastien said, study the super tight junk matte tutorial and apply the technique to your footage. The less pixels to key, the more efficiently the keyer can expand its range on the remaining ones. If you then still experience jaggy/ noisy edges a second application of the aforementioend plug-ins might do the trick. Other options include tools like Twixtor, SmoothKit, RSMB, RE:Fill etc. to mend holes and smear gaps. also, since the person is wearing dar clothes, the old trick of using a dark Inner Glow might also be applicable.
Mylenium

Reducing Video Noise (colored grain)

Is there a way to reduce video noise in FCE and if so, how?

I'm a little surprised since it is such a common problem in video taken in low light. I currently use Pinnacle studio on the PC side, which is a little more robust then imovie but far from FCE, and it has a pretty nice noise reduction filter which cleans up the video considerably. I took a poorly lit video clip which I was able to easily clean up in Pinnacle, into an apple store yesterday to see if I could clean it up equally or better in FCE and could do quite a bit except for the noise reduction. I'm doing this test due to my interest in switching to a Mac, mainly for video reasons. Are there plugins that could help with noise?
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Is there a way to eliminate or reduce wind noise while retaining voice?

Is there a filter/effect that will reduce wind noise while retaining voice reception?

Mickey Oksner wrote:
Is there a filter/effect that will reduce wind noise while retaining voice reception?
HI -
Are you talking about general wind noise as in "Wind in the Background" or are you referring to wind which is directly hitting the microphone capsule and thus causing extreme plosives and distortion.
In latter scenario, there is nothing that you can do aside from 'living with it' or record it again.
The first scenario; one can use a either an advanced denoiser which will literally remove the noise from the audio signal. In the case of wind, this would probably remove lots of the vocal too and cause unwanted side effects. I myself would use a gate (AKA Noise Gate) or expander effect. The gate sets a threshold @ which it literally opens and lets the audio signal pass thru'. One would set that threshold to open when the person is talking. And close when he is not. In most cases the wind will be a little quieter in level than the speech (If the material has been recorded correctly).
There are numerous of cheap and perfect functioning gates available as audio units.
Perhaps you can find some free, perhaps not.
If @ one point you want to get something which is really good and highly intuitive, I suggest you look into the FabFilter company.
They make great audio products @ a very fair rate and are the most intuitive you can find. But try the free ones first.
http://www.fabfilter.com/shop/?currency=eur&vat=1
Removing noise is about the most nasty and difficult thing, I as an audio engineer can think of. So don't expect this to be easy if it has to sound great ;-)

How to reduce the noise in PCIe-6321 acquisition, to optimize wiring.

Hi all,
I want to optimize my wiring in term of noise reduction. I use a DAQ PCIe-6321 in my application. I want to acquire an analog signal from a sensor (+/- 4 Volts, resolution of 2 mV, output impedance of 100 ohms) using the DAQ. The frequency of the signal is below 2 kHz. My first question is about the most suitable cable to use (shielded, twisted, etc.)? What is also the best suitable input configuration to choose in Labview (differential, RSE or NRSE)?
Moreover, after processing of this data under Labview, I want to power an audio power amplifier (input impedance equal to 10 kohms) using the analog output of the DAQ. What is the most suitable cable to use to reduce the noise? Are there any other tips to optimize the wiring?
Thank you for your help and suggestions!
Cedric

Hi guys,
I know that it is a bit late to reply but that is the perfect topic for what I am looking for!
I am currently working with acquisition systems using either PCI-6221 or PCIe-6321. Those systems are exactly the same but the results are different (see picture enclosed). We can see spikes and noise with the PCIe-6321 while we have the same conditions of measurements.
Here is the NI setup:
- PCI-6221 + connector block CB-68LP + cable SHC68-68-EPM
- PCIe-6321 + connector block SCB-68A + cable SHC68-68-EPM
In one of the system equipped with PCIe-6321, I replaced all the devices like cables, detectors, motors and it doesn’t change anything. I also swapped the computer for one equipped with PCI-6221 and it works fine. It means that the problem really comes from the acquisition card.
So my question is: why is there such a difference between those models? Do I need to change the configuration in the card?
Thanks in advance.
Maxime
Attachments:
Difference PCIe6321 and PCI6321.jpg ‏136 KB

Enhancing voices, reducing background noise

I am using a HD camcorder to record people at work in an office environment for a research project I am undertaking. I am using Final Cut Express to edit and enhance the raw AVCHD stream, and in particular the quality of the audio.
Does anyone have any useful tips for enhancing the audio within Final Cut Express (in particular the best audio filters and settings to use). I want to 'bring out' the voices of those being filmed, whilst reducing the background noise from the office (doors slamming, clicking of mice, rustling of paper, etc) in order to hear more clearly what is being said.
Any tip gratefully received!

I don't think anyone can tell you exactly which filters and what settings to use as it all depends on your particular noise.
Try the EQ filters and experiment raising and lowering the different sliders to see if you can accentuate the voices and reduce the noise ........ though very often little can be achieved.
Your best bet would be to record the voices with tie-clip microphones (especially wireless ones) as that would give you near perfect audio.

Can i reduce the noise that my motherboard's fan create?

i have the "msi k8 neo4-f nf f4 s+l+r
when my pc had a service three months ago i had told the technicians to reduce this noise they told me that they would fix it but they didn't.
when i had called them they told me that my motheroard's fan has lost it's smoothing...
i'm about to go mad
I can't stand it anymore...(this tiny fan spins around my head)

hello,
you can have a look here:
https://forum-en.msi.com/index.php?topic=98720.0

I'd like to know how I can acquire a waveform on a loop and do a circular buffer with this waveforms I will acquire, cause I want to reduce the noise.

I'm using trigger for this data acquisition.

deco,
If you really want a circular buffer, how much data do you want it to hold? One acquisition? Two? Three? Once this is decided, you will need to create the waveform and then continuously strip the old data out and place the new data in. This will add a bit of overhead to your VI.
There are also software noise filters in LabVIEW that you can use to reduce the noise in your signal.
Lastly, if there is a lot of noise, you may want to consider an SCXI system which will filter out most of the noise as the data is being acquired.
Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask

Reduce Audio Noise. How ?

Hello,
I have a audio need some filters to reduce the noise on it the sample is below any suggestion how can i do that. please ?!
Sample:
http://www.multiup.org/download/018eb15e17cba2e41791ea812c760e8b/01.mp3
Regards,

I couldn't listen to your file because the upload site you used is full of pop ups and wants me to install some extra software--something I'm not willing to do unless I know a lot more about it. You might want to consider using something like box.net.
However, as a generic answer, in Audition have a look under Effects/Noise Reduction & Restoration.
Basically, you find a section of pure noise (i.e. no useful recording going on) and capture a noise print. Then you select the whole file, adjust the amount of noise reduction to a compromise between artefacts and how quiet you go then run the process. FYI, best results are often obtained by doing several subtle passes rather than trying for dead quiet all at once.
However, the above implies electronic hiss/noise. Your options are different/more limited if you're talking about trucks driving by outside or something.

Adobe Premiere Elements 4-reduce background noise

Is it possible to reduce background noise using Adobe Pre 4?

Depending on the frequency range of the background noise, there might not be much, that can be done. However, this ARTICLE gives some tips, that might be useful.
Good luck,
Hunt

HELP! "Reduce background noise" changes from audio clip to clip, even though the percentage is the SAME. At my wit's end...

I am working on a lengthy editing project and am near tears at this point. Any and all advice would be deeply appreciated.
I am using a2012 MacBook Pro running Mavericks (10.9.5) and iMovie 10. I have been using the "reduce background noise" feature in iMovie 10, with movies where audio is detached, and I have a series of clips stitched together (the result of editing, or adding voiceovers). I'll add 4% reduce to the first clip, and it sounds great. I do the same to the second clip and it sounds as though the setting is at 100% — even if it's at 0%. In other words, the audio is really distorted.
I have tried relaunching iMovie and the MacBook itself, to no avail. The first clip is fine, all those that follow sound horrible, no matter how I change the setting.
Again, any and all advice or suggestions would be very welcome. Thanks!

I'm not sure if anyone is going to read or respond to my plea, but just in case, I thought I'd better update. I went into our local Verizon store today and explained my problems. I was nervous to do so because I didn't purchase my phone there and didn't know if they'd refuse to help based on that fact. The local store of a competing carrier will not help you if your phone wasn't purchased in their store.
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Reduce Crowd Noise

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