Recorded audio only to find that it’s cluttered with background noise? Most of us have been there. And it’s not a good feeling at all. But if you have the Garageband app, you can remove background noise easily.
So how to get rid of background noise in GarageBand? The simplest way is to use the ‘noise gate’ plugin. It will analyze the audio and mute those parts that fall below a particular volume. It can correct distortions, override, and other effects with great results.
That being said, there are other plugins available to get rid of background noise in GarageBand. In this article, learn how to use both methods.
How to Get Rid of Background Noise in GarageBand – Adding Noise Gate to GarageBand
Before you can start using the noise gate, you need to add it to GarageBand first.
Most producers and podcasters use the noise gate to fix background noises that sneak in during recordings. That’s because it’s convenient and comes included in the app.
But it’s not exclusive to the GarageBand app. A noise gate is a piece of software that controls the volume of audio signals. Think of it as audio compressor software.
Noise Gates also come in the form of hardware. But for this article, we’ll be focusing on Noise Gate, the software.
Here are the steps to add a noise gate:
- Open the GarageBand app
- Click on the knob-like button at the top-left of the screen
- You’ll see a panel at the bottom. Click on the ‘i’ button and turn off the ‘Master’ button. Then click on ‘Control’
- Then find the Noise Gate checkbox and tick on it
- Use the slider on the right to adjust the level
You’ve successfully added a noise gate to GarageBand.
Using Noise Gate to remove background noise
Now that you have noise gate available in GarageBand, use it to remove the background noise. It’s easy and only involves a few steps. But before that, you should know how to perform sound editing in GarageBand.
Here’s how you remove background noise in GarageBand with noise gate:
- Select the section of the audio that contains the background noise (you can use the trackpad’s zoom feature to spot the distortions)
- Move the dial to adjust the audio level
- Do not move too far toward the 0 dB mark, or it will eliminate all the noise, including the speaker’s voice
- Now further adjust the noise gate dial to reduce the background noise
In the end, you’ll have an audio track with reduced background noise. You can apply different gates for different tracks for the best result.
Use GarageBand while Recording
The best way to avoid background noise is to eliminate them at the time of recording. You can use the GarageBand app with a noise gate for that purpose.
While recording, you need to adjust the gain and volume. You have to lower the gain so that it doesn’t pick up the noises. But don’t set it so low that the software misses the speaker’s voice. To adjust gain, here are the steps:
- Open System Preferences on Mac
- Go to Sounds
- Locate input volume
- Set it to 80% or something closer to it
- To adjust the volume, locate the output volume and adjust the dial
Now you’ll have fewer background noises in the audio. Further processing of this audio will make it cleaner and near-perfect.
Reduce background noise using Melodyne 5
If your audio track suffers from inconsistent pitch, you can use the Melodyne plugin. While GarageBand has its own pitch correction plugin, Melodyne offers more flexibility. You can use it to auto-tune and remove unwanted pitches.
That being said, Melodyne is sophisticated software that involves a learning curve. If you’re not into music production, it’s recommended that you stick to the noise gate in GarageBand.
There are other plugins available for GarageBand to enhance audio quality. But note that GarageBand does not support VTS plugins. You have to look for AU (Audio Units) plugins.
Getting rid of background noises in GarageBand is easy. But as with all things technical, you need to know what you’re doing. Follow the instructions above to process your audio. As a tip, you should always keep backup audio just in case the operation goes wrong.
To be on the safer side, hire someone who has expertise in GarageBand. But if you’ve got time and zeal, go for it.
Yes, GarageBand can remove or reduce background noise in podcasts. The process remains the same as any other audio through the Noise Gate feature. Therefore, treat your podcast as an audio file.
Yes, you can remove background noise in GarageBand on your iPhone. You need to have installed the GarageBand app on your iPhone. Then, enable the Noise Gate plugin and process the audio file. But because the screen size is small, you may have trouble selecting or cropping the file.
To reduce static in GarageBand, you have to use the AUGraphicEQ and Gate built-in plugins.
AUGraphicEQ will allow you to see the audio in graphical format and adjust the frequency band. Gate plugin will suppress all frequencies below a certain cut-off point. Depending on the audio quality, you can eliminate static entirely.
GarageBand has a built-in Noise Gate plugin to reduce noise in the audio. It works fine for most audio files. Other good plugins available are Bob Perry Noise Gate and Melodyne.
MFree Fx Bundle is available for pitch adjustment. Another lesser-known plugin called Synth1 by Daichi Laboratory has high-quality filters to reduce or remove noise. The list will go on and on.