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How to Remove Background Noise From Video on iPhone & Android

Last Updated on Mar. 8, 2024 – by CyberLink
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How to Remove Background Noise From Video on iPhone & Android

If you're a frequent videographer or audio recorder, you're no stranger to the annoyance of background noise. From incessant hums to distracting conversations, these unwanted sounds can derail the intended message and dampen viewer engagement. Fortunately, in this article, we delve into the techniques of background noise removal and how to do it on PowerDirector — The Best Video Editing App, allowing your videos to shine with clarity and professionalism.


What is “Background Noise”?

Background noise refers to the ambient or unwanted sounds present during audio or video recordings that are not part of the intended content. It includes various environmental noises like traffic, air conditioning, or general chatter, negatively impacting the clarity and quality of the desired audio or dialogue, making it difficult to understand or enjoy. Minimizing or eliminating background noise is crucial to ensure a clear and immersive experience for the audience.

When Should I Remove Background Noise From Video or Audio?

Here are some situations, where a clean and clear background is of utmost importance, making it crucial to remove background noise:

  • Professional Interviews: When conducting interviews for documentaries, news segments, or corporate videos, background noise removal is essential to ensure the clarity of the subject's responses and maintain a professional atmosphere.
  • Film or Video Production: In the world of filmmaking, background noise removal is crucial during shooting to create a seamless and immersive experience for viewers. The audience can fully engage with the story and dialogue by minimizing noise distractions.
  • Podcasts and Voiceovers: In audio recordings for podcasts, voiceovers, or narrations, background noise removal is vital to deliver a clean sound. Clear audio enhances the listener's experience and allows them to focus on the content without being distracted by unwanted noise.

6 Steps to Remove Background Noise on iPhone & Android

You can follow these six quick steps in the PowerDirector to remove background noise from video or audio:

  1. Download PowerDirector — The Best Background Noise Removal App
  2. Tap “New Project” to Import Your Video or Audio
  3. Tap the Edit Icon to Start Removing Noise From the Video
  4. Tap “Audio Tool” to Find “Denoise” Button
  5. Adjust the Denoise Level
  6. Make Other Edits or Export the Video or Audio

1. Download PowerDirector — The Best Background Noise Removal App

PowerDirector is a versatile video editing app that caters to all your needs. With the user-friendly interface, it offers powerful background noise removal features, ensuring hassle-free editing. Its professional-grade audio restoration capabilities deliver high-quality results, making your videos sound clear and professional. Download now and eliminate those annoying background noises!

2. Tap “New Project” to Import Your Video or Audio

Enhance photos with PowerDirector

After opening the app, tap “New Project” to start editing your video

3. Tap the Edit Icon to Start Removing Noise From the Video

Enhance photos with PowerDirector

To access the denoise feature, you can either tap the “Edit” icon or directly tap the video clip.  It will lead you to the toolbar that edit the video by trimming the video, removing background from the video or making other adjustments.

4. Tap “Audio Tool” to Find “Denoise” Button

Enhance photos with PowerDirector

PowerDirector provides lots of editing tools, find “Audio Tool” and you can see “Denoise” in the list showed up.

5. Adjust the Denoise Level

Enhance photos with PowerDirector

PowerDirector will automatically remove the background noise, all you need to do is to adjust the strength and check the effect.

6. Make Other Edits or Export the Video or Audio

Congratulations! You have successfully dealt with this troublesome issue in a short amount of time. Make any other adjustments or edits to your clip and export it via the Produce icon at the top right of your screen.

Check Out Other Useful Editing Tool of PowerDirector:

Tips to Reduce Background Noise When Recording and Video Shooting

We just introduced how to perform a background noise removal. But it would be rather ideal if we could minimize background noise during video shooting, saving us time and effort in post-production. Here are some tips to help you minimize background noise during video recording:

1. Optimize The Acoustic Environment

If you are doing in-door shooting or recording, to reduce background noise, you can optimize the acoustic environment by using sound-absorbing materials such as curtains, carpets, foam panels, or acoustic tiles. These materials help minimize reflections and echo, creating a quieter recording space and improving the overall audio quality.

2. Use A Directional Microphone

Investing in a high-quality directional microphone, such as a shotgun microphone, that focuses on capturing sound from the desired source while minimizing background noise, resulting in clearer recordings. Therefore, attach the microphone to your camera or use an external audio recording device.

3. Attach A Pop Filter Or Windscreen To Your Microphone

A pop filter is a mesh screen that is placed in front of a microphone to minimize plosive sounds like "p" and "b" sounds. Windscreens are often made of foam or furry material, reducing wind noise and other air disturbances. These tools are very helpful for reducing background noise.

4. Position The Microphone Close To The Subject

Remember to place the microphone as close to the subject as possible without interfering with the shot. This helps capture clear audio from the intended source while reducing ambient noise. If you cannot afford equipment to reduce background noise, at the very least, make sure to prioritize this point. 

5. Be Mindful Of Clothing Noise

When recording or shooting, it is recommended to wear clothing made from materials that are less likely to generate unwanted rustling or scratching sounds. Opt for fabrics like cotton, microfiber, or silk. Avoid wearing clothing with rough textures, sequins, or accessories that can cause disruptive audio artifacts.

FAQ About Background Noise Removal

1. Can I Remove Background Noise From a Video on iPhone?

Yes, it is possible to remove background noise from a video on an iPhone. There are various video editing apps available on the App Store, such as PowerDirector, iMovie and Adobe Premiere Rush, that offer noise reduction features. These apps allow you to import your video, apply noise reduction filters, and enhance the audio quality directly on your iPhone.

2. What’s the Technique Behind Background Noise Removal?

Background noise removal typically involves techniques such as spectral subtraction, adaptive filtering, and Wiener filtering. These techniques analyze the audio signal and separate the desired audio from the background noise based on statistical analysis and frequency characteristics. Noise reduction plugins or tools use these algorithms to attenuate or remove the identified noise components, improving the clarity and quality of the audio.

3. Is There Any Free Background Noise Removal App?

Yes, there are free apps available for both iOS and Android to remove background noise from video or audio. Among them, PowerdDirector is the most recommended. It has an intuitive user-friendly surface and professional background noise removal technique. It also provides various useful video & audio editing tools, allowing you to meet all your needs.

4. How Do I Remove Background Noise from Audio?

Follow these six steps, and you can easily remove background noise from audio:

  1. Download PowerDirector — The Best Background Noise Removal App
  2. Tap “New Project” to Import Your Video or Audio
  3. Tap the Edit Icon to Start Removing Noise From the Video
  4. Tap “Audio Tool” to Find “Denoise” Button
  5. Adjust the Denoise Level
  6. Make Other Edits or Export the Video or Audio

5.What is Digital Noise Reduction?

Digital noise reduction is a signal processing technique used to reduce or remove unwanted noise from digital audio or video recordings. It employs algorithms and filters to analyze and modify the signal, aiming to distinguish between the desired audio or video content and the unwanted noise. By selectively attenuating or removing the noise components, digital noise reduction improves the overall quality and clarity of the recording.

Download PowerDirector: The Best App To Remove Noise From Videos

As you can see in the article, PowerDirector provides high-quality background noise removal function with extremely easy steps, making your videos sound clear and professional. Download now and eliminate those annoying background noises from the video!

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