How to Remove Background Noise in Audacity [2 Methods]

作为网站内容制作者,you're constantly at war with background noises. You often record your best attempt on a song or podcast, only to see it ruined by the constant gasps or windy sounds. It affects sound clarity, and the users fail to connect with your voice and message. So, it is essential toremove background noise from audio.

The background noise can come from the environment (traffic, wind, vehicle), room equipment (fans, lights, ACs), and processes (compression, equalization). It is humanly impossible to control/ remove all these sounds manually. You need AI-based tools toseparate vocals from background noise.

Audacity is the leader in this genre; you can use it to remove the background noise from audio online for free with two distinct methods. Here is the summary of both methods

How to Reduce Background Noise in Audacity

Before jumping straight toapplying noise reductionwith Audacity, let's briefly see what the software is all about.

Audacity is an open-source, free-to-use software for audio recording and editing. The software is compatible with Windows, macOS, Linux, and other operating systems. It is known for studio-quality sound and ease of usage.

With Audacity, you can

• record live or instrument sounds,
• edit all audio files (MP3, WAV, FLAC, MP2, etc.)
• Cut, Copy, Mix, and Slice multiple tracks
• Change, speed, temp, the background of a recording

You can use the following two methods to remove background noise from audio files with Audacity.

1. 1. Audacity Noise Reduction Method
2. 2. Audacity Noise Gate Method

1. Audacity Noise Reduction Method

The Audacity has a noise reduction feature to remove constant background noises. You can use it to remove the hiss of fans, the buzz of winds, and all such sounds. The process of background removal is straightforward.

Follow these steps to use the Audacity Noise Reduction Method.

Step 1.Download and Install the Audacity appon your system

Step 2.Open the app andcreate a new audio file.(Spoken words, song, or any other audio).

Step 3. Select the noisy sectionon the visible audio timeline. It shouldn't have any other audio.

Step 4.Click on the"Effect."Check out the Effects menu and select the"Noise Reduction"option.

Step 5.Click theGet Noise Profile Buttonin the pop-up window. It willselect background noise voicefor further work.

Step 6.After this, the menu will show you three variables;Noise Reduction (dB), Sensitivity, and frequency smoothing bands.

Step 7.You canmanually adjusteach variable's value, selectthe "Reduce" option, and click OK. The software willremove background noisesfrom selected parts.

Step 8.Watch thepreview.If you require any more changes, you can use the manual option.

Step 9.PressCTRL+ A to select the entire track.

Step 10.Go back to Noise Reduction andapply these changes to the whole track.

Step 11.Thebackground sounds will be removed.

You can watch this video that may help you a lot.

2. Audacity Noise Gate Method

Noise Gate is ideal for removing more sophisticated noises like breathing, lip-smacking, or unwanted instrument sounds. They are usually low in frequency and hard to detect. The Noise Gate acts like a barrier that only allows sounds above the threshold to pass, and the rest are removed. It provides a clean output voice.

This is how you can use the Audacity Noise Gate Method.

Step 1.Check whether your Audacity has aNoise Gate plug-in. If not, clickon Effects> add/remove plug-ins>Noise Gate plug-in.

Step 2.Recordan audio file.右键单击“音轨”option available on the left of the interface.

Step 3.Choose "Waveform (dB)."The Audacity will show moreprominent and refined waveformsof your audio file.

Step 4.Use your mouse toenlarge the track size further. Play the waveform andlocate breathing or buzzy sounds.You can see itsmaximum frequency.

Step 5.Go toEffectsandchoose the "Noise Gate" option.

Step 6.You will find the"Gate Threshold" and the "Level Reduction"options in the Noise Gate Window. Both factors are equally important.

Gate Thresholdis the value below which the noise will be removed.

Level Reductioncontrols the amount of audio signal reduction.

Step 7.Select thevalues of both featuresandpress "OK."

Step 8.The software will take time and remove all such noises. It can take fromminutes to hours, depending on file size.

Step 9.Your clear audio file is ready.

You may want to know:

Pro Tip: Best Alternative to AI Reduce Noise in Audacity

Although Audacity is an excellent app for AI-based voice reduction, it can sometimes fail to produce the desired results. Plus, for studio-quality sound, you need a more sophisticated option. If your Audacity app isn't working correctly, we recommend you useEaseUS VideoKit, a world-class audio/video recording and editing software.

1. Ratings:4.5 out of 5
2. Compatibility:Windows 7/8/10/11 and MacOS 10.3 and later
3. Price:$0 - $79.95 (According to the selected version)

EaseUS VideoKit, this perfectAI noise remover, uses the latestAI-driven background noise remover,which uses cutting-edgeAI to remove background noisefrom an audio/video file. It combines AI Algorithms and deep machine learning to identify all types of noises. After this, you can seamlessly remove background noise without affecting the original sound. It provides clear, sharp, and crisp output sound. It can perform many sophisticated operations, likeremoving wind noise from a video.The EaseUS Videokit is essential for making high-quality podcasts, songs, videos, and music recordings.

EaseUS Video kit offers other audio features, including avocal remover and an audio extractor. You can edit partial or complete main audio from a file with vocal remover. At the same time, the audio extractor can extract audio from any video. You can save audio in MP3 and use it for future content creation. It also allows you tocut, copy, paste, and mix different sounds. There isn't anyfile size limiteither. It can apply these changes to all files with no exceptions.EaseUS VideoKit is your complete workstation from home.

Another glowing aspect of the EaseUS Video kit is itsvideo editing. It supports more than 1000+ video formats. It can accept and edit 4K/8K videos with ease. It allows you to trim, edit, and merge videos. You can addbackgrounds, subtitles, and watermarks to your content.Since Audacity is only concerned with audio, it can't compete with EaseUS Video Kit in video editing. Itmakes the EaseUS Video Kit a more feasible option for content creators.

If you're a Windows or Mac user, Install the latest EaseUS VideoKit Version today. It will remove all your background noise problems and take your content creation to the next level. Now, follow some steps.

Step 1.Open EaseUS VideoKit and find the "Subtitle Generator" panel.

Step 2.Click "Choose File" or drag the YouTube video file to the interface.

Step 3.Wait for the AI analyzing.

Step 4.Click the "Text" button to change the text, or customize font, background, and position under "Style" menu.

Step 5.Click "Export Subtitle" to select exported subtitle format, "Save to" to change location, and press "Export" to export the video with subtitles.

Share this post with others to help more people know how to remove background noise with EaseUS VideoKit.

Conclusion

Background Noise is the ultimate deal breaker in content creation. Any content with an annoying background receives negative reviews and is destined to fail. This article explainshow to remove background noise in Audacity. We have discussed two methods: the Audacity Noise Reduction Method and the Audacity Noise Gate method.

The introduction and step-wise process of each method has been provided. You can pick anyone as per requirement. If Audacity does work or you want a higher quality sound, you can useEaseUS VideoKitas as an alternative. It can instantly remove background noise from all audio files. Download it now and start rocking the content creation industry.

How to Remove Background Noise in Audacity FAQs

These are the most searched questions about removing background noise in Audacity. If you have any other queries, you can always comment below.

1. How do I remove a specific sound in Audacity?

You can use the Audacity Noise Reduction method to remove any specific sound from Audacity. Follow these steps

Step 1.Upload the audiowith thespecific sound on Audacity.

Step 2.Selectthe small areawith a specific sound.

Step 3.Click onEffects, Noise Reduction, and Noise Profile.

Step 4.In Noise Profile, selectNoise Reduction to the maximum. It will remove the sound.

Step 5.Now pressCTRL+A to select the entire file and apply the same settings.

Step 6.The sound will be removed.

2. What tool in Audacity is used to remove unwanted noise?

To remove sounds, Audacity uses Noise Reduction and Noise Gate tools. You can choose any one as per requirement.

3. Can you separate sounds in Audacity?

You canseparate sounds using the Edit, Audio Clips, and Split optionin the Audacity app. You can find all separate options in theSplit menu.