I've got a lot of outdoor shots with a hard wind blowing. I want to preserve the ambient audio but would like to cut down the annoying sound of the wind. Is there a simple setting in one of the audio filters that would hit this?
Thanks Grazie... I won't bother you with a sample... this is just a quickie project at a cross country meet... I want to keep some of the croud cheers but not the constant drone of the wind... though probably overkill, these settings seemed to do the trick:
It's back again!
Just a low shelf. Wind noise is notoriously difficult to get rid of. I would have gone for a more severe cut at the lower frequencies than Jim used. You might not hear it on the average PC speakers but anyone with a sub is likely going to get some nasty LF rubbles.
You can get rid of hum because its constant frequencies; you can get rid of some high frequency noise, like tape hiss, because it is mostly high frequency and most high frequency content is transient. You can get rid of coughs and spikes and other short transients because the surrounding material can be used to reconstruct what could have been there without the boo-boo.
However, you cannot get rid of wind noise. It extends across the entire frequency range and is relatively constant (compare to a click, pop, or cough).
You are stuck with wind noise. Nothing you try will make the audio sound better.
You can get rid of hum because its constant frequencies; you can get rid of some high frequency noise, like tape hiss, because it is mostly high frequency and most high frequency content is transient. You can get rid of coughs and spikes and other short transients because the surrounding material can be used to reconstruct what could have been there without the boo-boo.
However, you cannot get rid of wind noise. It extends across the entire frequency range and is relatively constant (compare to a click, pop, or cough).
You are stuck with wind noise. Nothing you try will make the audio sound better.
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I have one worse than wind noise. After shooting night time outdoor theatre did you ever try to get rid of cricket noise? YIKES!
After shooting night time outdoor theatre did you ever try to get rid of cricket noise? YIKES !
If the result was intended for the National Archives, and you had LOTS of time, you might be able to remove some of these using iZotope RX. It would depend on how the "signature" of the cricket noise appears in the display: If you can "see" the crickets as separate and distinct from the main audio, you can often remove them, sometimes rather completely.
The amount of time it would take to remove the crickets will be directly proportional to the temperature at the time you filmed the event.
Why?
Because crickets chirp faster at higher temperatures. And, they do so in a very predictable fashion. They can, in fact, be used to rather accurately measure the temperature. How? Record the number of chirps in 15 seconds. Then, the temperature, in fahrenheit, is given by this equation:
T = chirps + 40
The more accurate formula is based on chirps in a minute:
T = 50 + (chirps - 40) / 4
I think this is based on North American crickets, and particular those in New England, which is where this was first discovered.
Thanks for the thread my friends! I have frustrated over wind noise in the past and will do so no more. Live with it; I hear that. Now, question is, is there anything you can do in the recording moment (videoing the event) or to your equipment that will effectively deal with the problem? I have a wireless mic with a wind screen, but it doesn't do much. I put the mic in a lens bag (you know, black material with a draw string) and hung it on something once and that seemed to do a fair job of screening out the wind. Appreciate the conversation.
If the wind is making a noise as it blows around objects other than the mic then there's nothing you can do.
However if the noise is being made by the wind blowing over the microphone then a dead cat can help. The best is a zepellin blimp covered with long fur. This creates a space of dead air around the mic as well as the fur stopping the outside of the zepellin from making a noise. Rycote and others make units in various sizes.
We have a unit made by DPA which works incredibly well according to those who've used it. It is very expensive and oddly enough doesn't use any fur.
Bob.
[edit] I just realised you're trying to use a wireless mic, I guess with a lapel mic. You can get dead kittens for them however I think the problem you'll eventually run into is things such as clothing creating noise as the wind blows over it. Wind is silent, it's the turbulence as it blows over objects that creates the noise. Once you stop the mic from making a sound if you've still got a problem there's not too much you can do. I guess having the talent with their back to the wind is about it. If you really must capture speech in a hurricane you could investigate throat mics. Probably will not sound very nice though or you could try those bone conduction mics that the spooks use.
Or use what Hollywood has known for a long time, ADR. Of course, then you'll need Foley work to restore ambience to the scene, but possibly, judicious use of roomtone will cover that.