How To Clean Up Static In Audacity
How to Remove Background Noise in Audacity (three Steps)
Background noise can be a real downer - particularly when your air conditioner or neighbors lawnmower gets picked up by your mic and ruins an otherwise perfect recording.
Audacity is a gratis, open-source audio editing software that makes it simple to remove unwanted background racket. The platform has a curt learning curve, and almost podcasters find information technology fun and easy to employ.
In this tutorial, we'll evidence you lot how to use Audacity to remove distracting recording sounds while keeping your original audio intact.
Download: Brazenness (Uniform with Mac, Linux, & Windows)
How to foreclose background noise
Brazenness makes removing noise pretty straightforward, only it'southward even so an actress step that adds boosted time to your podcast workflow. These tips help prevent the need for dissonance reduction and reduce your fourth dimension spent editing.
Optimize your recording infinite
Where you record your podcast is the single most crucial factor in your sound quality. To improve your home podcasting space, we suggest finding a quiet, minor room away from HVAC units, traffic, external hard drives, white dissonance, fans, etc. You can also improve your room tone by choosing a space with natural audio absorbers similar defunction, rugs, carpet, couches, etc.
Utilize a dynamic mic
In that location are two main types of podcasting mics: condenser or dynamic. Condenser mics are much more sensitive devices designed to capture ambient room noise, while dynamic mics have a more focused range of frequencies, causing it to option upwards less ambience sounds. The Samson Q2U is our pinnacle pick for an affordable, quality, dynamic mic with USB and XLR hookups.
Turn downwardly the gain & become close
Pass up the gain (the mic's sensitivity) and get closer to it. Speaking directly into the mic won't distort your audio as long as y'all lower the gain, and it will help ensure your mic focuses on picking upward the frequency of your voice.
Pro tip:Adjust the gain of your recorder (or DAW) so your voice peaks effectually -12 and -10db.
Minimize computer fan racket
Computers can make a significant corporeality of racket when they get hot. You tin turn your mic abroad from the calculator to assist mitigate this issue and reduce the corporeality of software running to foreclose the fan from turning on.
Even if you follow all these tips, sometimes unwanted recording sounds withal find their way into your episode. Thankfully, modern software makes this issue fairly easy to correct.
Remove background noise in Audacity (3 steps)
If you lot haven't already, download Audacity and go toFile> Import > Soundto select the runway you want to edit. In our audio file, the mic picked up a hum from the computer fan (1 of many means unwanted sound tin can sneak in.)
Now that yous've imported your track into Audacity'southward workspace, you tin can follow these three steps to isolate your groundwork noise and minimize it throughout the entire recording.
#1 Become a racket sample
The start affair you lot'll exercise is help Audacity isolate the background noise you desire to remove. In this case, we're isolating some unwanted fan noise from the audio recording and letting Audacity know the frequency we want to remove. Make certain you lot take a recorded selected where there's no one talking, and it's just groundwork dissonance.
If you lot don't have a pick this big, find somewhere in the audio you can isolate. The important matter is to isolate a section with only the groundwork noise, so it doesn't ruin your voiceovers, dialog, music, etc. Now, click and drag your selection with theSelection tool.
#2 Apply noise reduction
In one case yous isolate your clip, go toOutcome >Dissonance Reduction. SelectGet Noise Profile to let Audacity know which frequencies to filter out and which to ignore.
Now that you told Audacity what particular frequencies you want to remove, select the unabridged track, so Audacity removes it from the whole recording.
Go back toEffect andselect Noise Reduction again to remove the background racket frequency anywhere it appears in your sound file.
#3 Tweak the settings
The first choice you lot accept is the amount of noise reduction that y'all want Audacity to take out. Yous don't want to overdo it because information technology might make your audio audio similar y'all're recording underwater. As a general guideline, 12 decibels is a skilful place to outset.
Next, you'll take the pick to adjust sensitivity and frequency-smoothing bands. We propose leaving these on their default settings of half dozen and three.
There are a couple more levers to pull from to isolate the noise frequency fifty-fifty more than, but we suggest starting with the default settings. If y'all get likewise in the weeds adjusting these levels, you might terminate upwards with worse issues than the original background noise.
From here, you can preview how your audio sounds with these settings applied. If y'all still hear your groundwork racket, you lot can increase the noise reduction by going to thirteen, 14, 15, twenty, 30 decibels — any y'all think is appropriate.
When y'all discover the correct level,click OK. You lot tin can come across here that Audacity removed nigh of the noise, just in that location'south still a petty bit left.
To remove the remaining noise, hitCommand +Z (orCtrl + Z), and go back toEvent >Noise Reduction. Here, you lot tin can increase the reduction to xv instead of 12 andhit OK.
Now, recheck the audio to see how it sounds. You might have to echo that step a few times to go an acceptable result. That's all there is to it!
Additional thoughts & resources
As you can see, dissonance removal is a give and have, but the trick is to utilize just enough reduction to remove the background noise without negatively impacting the rest of your audio.
Audacity is an excellent sound editing tool, widely used by digital audio creators. These tutorials tin assistance yous get more than comfortable using the platform to edit your own podcast!
- How to Edit a Podcast in Audacity — YouTube
- How to Use the Compressor in Audacity — YouTube
- How to Normalize Audio in Audacity — YouTube
- How to Move Audio in Audacity — YouTube
- How to Export Audacity Files as MP3 — YouTube
- How to Cutting a Runway in Audacity — YouTube
- How to Fade in and Fade Out in Brazenness — YouTube
Source: https://www.buzzsprout.com/blog/remove-background-noise-audacity
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