Audacity Remove Background Noise
In this Audacity tutorial you will learn the basics of how to perform the Audacity Remove Background Noise audio editing technique.
There are many things that can cause background noise or 'hiss' in our recordings, such as a bad mic cable, a guitar pickup, unbalanced lines, analogue tape, or a noisy component. In order to get a nice clean sounding recording we need to deal with these unwanted noises.
Before I open Audacity remove background noise and celebrate, I will make a more important point. Avoid background noise in the first place. This sounds simple, because in most cases it is. Do some test recording of your audio equipment before you start recording sound for real. You will notice if there is background noise you need to remove before you are stuck with it. Here is a little check list to help you remove background noise before it happens:
1. Check your recording levels to make sure you have a nice strong signal. If you are not sure how to do this, the Video Guide to Audacity as a great tutorial on it.
2. Get close enough to your mic so you can get a strong signal and reduce background noise. Here is great video on how to improve your vocal recording.
3. Check all your cables and gear to make that they are not the source of background hiss or hum. (video on microphone hum)
4. If you have a back ground noise causing pot or jack on a guitar or amp clean it up.
5. Turn off any background noise causing lights or appliances in your recording area.
Add some of your own ideas to this check list to help you find and remove background noise before it gets on your recordings.
Now, let's open Audacity remove background noise and get ready to celebrate 🙂
The way the Audacity remove background noise function works is Audacity analyzes a small piece of the actual buy metronidazole lotion background noise, isolates it, creates a noise profile and removes that noise profile from the recording.
Now let's try and remove background noise with Audacity:
Step 1 - Use your SELECTION tool to select a portion of the recording which has ONLY the background noise in it. In other words as section when you are not playing or singing - only background noise. If you don't know how to use the selection tool the Video Guide to Audacity has a great tutorial on that.
Step 2 - Go to the Audacity EFFECT menu and choose NOISE REMOVAL.
Step 3 - Click on GET NOISE PROFILE. Audacity will analyze the background noise in order to remove it.
Step 4 - There are some settings in the NOISE REMOVAL window. Try using the default settings first and see the results. I suggest you play with these settings gently to find what works best for you. There is no 'perfect setting,' so experiment a little and you will get great results.
Step 5 - Click OK
Audacity will analyze your entire recording and remove the background noise based on the noise profile Audacity has created.
THINGS TO THINK ABOUT:
- If you are making a recording and you suspect that you are going to have some background noise that you will need to remove create a section of the recording that you can use for making your noise profile.
- When you do an Audacity remove background noise function it does effect the sound of your recording. So be ready for that.
- If you are doing multitrack recording try to do Audacity remove background noise function on individual tracks instead of on entire mixes. Some tracks may not need noise removal and you are altering the sound of those audio tracks when you may not need to.
From now on you can open Audacity remove background noise and celebrate with confidence 🙂 I hope this little Audacity tutorial helps you. If you need more help with Audacity please check out the Video Guide to Audacity.
by Andrew Mercer