How to Remove Background Noise From Your Screencast Audio

(Tip:  For best results you should listen using headphones, earbuds or just turn the volume up on your speakers.)

What Can You Do About that Pesky Background Noise?

The topic of enhancing the audio in your web video or screencast project came up in a discussion with friends during the last couple of weeks.

Of course, your best bet against degraded audio in the final production is to front load your project with decent hardware (e.g., microphone, mixer, etc.), while sanitizing your acoustic environment as much as possible from background noises.

But, then again, saying all that is sort of like telling someone that they can save a lot on the cost of multi-vitamins by simply "eating right."  The fact is, we don't always get it right.  Or, it's not always practical; impurities seem to find their way into the system somewhere.  So, that's where a little software magic can help you.

Free Sound Editing Software is Always Good

Audacity - free, cross-platform sound editorThe video at the top of this post is a short tutorial that illustrates the simplicity with which you can filter away some undesirable background sounds from the audio in your screencast or web video projects.  In the demo above, you'll find me using Audacity's sound editor.   (Free, cross-platform... both PC and Mac versions of Audacity are available for download here.)

Did I mention it's free?

In the demo above, I kick it off with a prepared audio file devoid of any video that it may have been originally attached to.  I do this a lot.  All you would need to do is export the audio as its own file from your video project.  Exporting it out to MP3, WAV or AIFF are some pretty common formats.

Then, simply import that sound file into a sound editor like Audacity for filtering and processing.

When you're ready to make it part of your video again, simply save it (from the sound editor) and import it back into a sound track in your video editing software.  (Maybe I should create a video tutorial to show how I do this?  Let me know.  I'm flexible.)

If you find the video above useful, feel free to bookmark it so you can have it as a reference in the future.

Your Turn

Do you have any favorite tips or tricks that you'd be willing to share that can enhance our audio and/or video/screencast productions?  I'd love to hear them.  Please add your tips to the comment section below.

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About Mel

Mel is the online training architect and screencasting wizard at Kareo, one of Forbes' 2013 list of 100 Most Promising Companies in America. He's also the creator of Digital-Know-How, a training website devoted to developing learners' skills for screencasting and web video course development. Mel is also the chief blogger of; Mel's personal blog. The comments and opinions you read here are Mel's and not associated with any other company.
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6 Responses to How to Remove Background Noise From Your Screencast Audio

  1. Lynn Elliott says:

    Great video and article! Thank you for posting it. I’m just doing a post about audio on the ScreenFlow blog, and I plan to refer to this. Thanks again.

    • Mel says:

      Thank you, Lynn. It was fun doing the video. And, I’m glad it helped. :)

      Best to you,

  2. Dana Dutiel says:

    Just wanted you to know that your passion and skills for Instructional Technologies is inspirational. You are also have some part in my motivation for creating an Online Portfolio – from your LinkedIn Post (I think it was last week). Now, where do I start? so much to do! :)
    Thanks again,
    Dana Dutiel
    (Past ASTD-OC member and soon-to-be current member).

    • Mel says:

      Hi Dana. Thank you for taking time to say so. It means a lot to me to hear whenever my posts have helped folks. Please keep checking back, and, I’d love to have you send me a link to your portfolio when you have it done. I think we’re already connected on LI, so feel free to send me a link via a LI message.

      Thanks again! :)

  3. Bonnie Nicholls says:

    Thanks for this post. This helped me remove background noise from my narration.

    • Mel says:

      Thanks for taking time to say so, Bonnie. I’m glad it helped!

Comments are closed.