When watching an enjoyable video, it can be frustrating and disappointing if there is background noise or poor audio quality. In such cases, it is natural to want to find a solution. There are methods to address audio noise issues in videos, and this article will introduce simple approaches using free software.
How can voice noise get in? How do I turn it off?
There are several reasons why noise or unwanted audio artifacts can enter videos and audio recordings.
One reason is the compression of video files, which can lead to a decrease in audio quality. During the compression process, certain audio frequencies or details may be lost, resulting in noise or distortion.
Another factor is the possibility of errors or glitches during the download or capture process. If there are problems with the transfer of the file, it can introduce noise into the audio stream.
Additionally, the equipment used for playback can also contribute to the presence of noise. If the playback device or speakers have issues, such as poor connections or hardware problems, it can affect the quality of the audio.
To address these issues, if the problem lies with the playback equipment, cleaning or repairing it may resolve the noise problem. However, if the noise is present in the video file itself, you may need to redownload or recompress the file to mitigate the noise or consider using noise reduction techniques during post-production editing.
Recommended free software for removing noise and audio noise
Audio noise is difficult to eliminate using only standard PC applications. Specialized software must be downloaded. However, there is no need to use specialized software that costs tens of thousands of yen.
Here are some recommended free software packages that can remove noise and audio noise.
① UniFab
UniFab is a free software that can remove noise and enhance audio quality. It provides a wide range of video editing features and supports over 1000 video and audio formats. You can trim, crop, apply effects, add watermarks, subtitles, and adjust audio settings. UniFab also offers a one-click compression feature.
To remove noise from audio using UniFab, follow these steps:
- Download UniFab from the official website or using the provided link.
- Install UniFab on your Windows 11/10/8.1/8/7 computer.
- Launch UniFab and select “Convert” from the menu on the left.
- Click the “+” button to add the audio file you want to edit.
- After the file is uploaded, choose the “Effects” option.
- Click on the “Audio” tab and check the “Remove Background Noise” option. You can also adjust volume, stereo settings, and enhance human voice if needed.
- Click “OK” to apply the settings.
- Set the output destination at the bottom of the screen and click the “Start” button to begin the process.
- Wait for the process to complete.
By following these simple steps, you can edit and remove noise from your audio using UniFab.
② Audacity
Audacity is a free software for audio editing that includes a feature for noise removal. Here’s how to remove noise from audio using Audacity:
- Download and install Audacity.
- Launch Audacity and drag and drop the audio file you want to remove noise from.
- Select the portion of the audio that contains the noise, then click on “Effects” at the top right corner of the software and choose “Noise Reduction”.
- Finally, adjust the degree of noise reduction and click “OK”.
Note: The specific menu options and layout may vary slightly depending on the version of Audacity you are using.
③ AviUtl
AviUtl is a video editing software that can be used as a free solution to remove noise from videos and audio. By utilizing various plugins, you can effectively eliminate noise from your videos and audio tracks. However, it may take some time to install and set up the necessary plugins, and you might not be able to use them immediately after installation.
Here’s how you can remove noise from audio using AviUtl:
- Install the “ReaPlugs” VST plugin and launch AviUtl. Right-click on the timeline and choose “Add Filter Object” followed by “VST Hosting #1.”
- Go to the settings and click on “VST Hosting #1.” In the displayed window, click on “Select VST plugin” and choose “ReaFir (reafir_standalone.dll).”
- In the ReaFir settings window, change the Mode to “Subtract” and enable “Automatically build noise profile (enable during noise).”
- Play a brief section where only the noise is present, then uncheck “Automatically build noise profile (enable during noise).”
By following these steps, you can effectively remove noise from your audio using AviUtl’s ReaFir plugin.
④ PowerDirector
PowerDirector, a video editing software, offers various noise reduction features to remove background noises such as pet sounds or keyboard typing from audio. It can automatically recognize the main audio, such as voices, and suppress background noise accordingly. While its versatile noise removal capabilities are appealing, users who are less familiar with video editing software may find it less user-friendly due to the abundance of features.
Here are the steps to remove audio noise using PowerDirector:
- Download and install PowerDirector on your computer. Launch PowerDirector, select the video you want to remove audio noise from, and click on “Edit Audio” located at the top.
- From the displayed menu, select “WaveEditor…”. In the WaveEditor screen, click on “Special” and then “Noise Reduction” located on the left side.
- In the “Effects: Noise Reduction” screen, check the “Preview” option and adjust the sliders and values for “Noise Type” according to your preference. Click on the “OK” button when finished.
- After closing the WaveEditor screen, a confirmation message will appear asking if you want to save the changes. Click “Yes” to save.
These steps will guide you through the process of removing audio noise using PowerDirector.
⑤ Adobe Audition
Adobe Audition is a software specifically designed for audio editing. It includes a noise reduction feature, allowing users to remove unwanted noise from audio recordings. Therefore, it enables the removal of noise and improvement of audio quality.
⑥ Izotope RX
Izotope RX is a software used for audio restoration and noise removal. This software allows you to remove noise from audio by utilizing tools such as the Spectral Editor and Noise Profile.
⑦ Sound Forge
Sound Forge is a software for audio editing. It has a built-in feature that allows you to remove noise from audio. Therefore, you can use this software to eliminate noise from your audio recordings.
⑧ Neat Video
Neat Video is a plugin used to remove noise from video and audio. By using this plugin, you can remove only the noise from your videos and audio while preserving the details of the visuals.
Conclusion
We have explained various software and methods for removing audio noise so far. By choosing the one that suits you, you can effectively eliminate noise from your audio. In addition to noise reduction, “UniFab ” also offers video conversion and compression features, making it our top recommendation. By effectively addressing noise issues, you will be able to enjoy videos even more. Feel free to refer to the information provided in this session. If you want to learn about blu-ray 音声 抽出, you can read this article.
