top of page

How to Remove Background White Noise in Audacity

May 17, 2024

Tired of annoying background white noise ruining your audio recordings? Look no further; this step-by-step guide will show you how to remove unwanted white noise from your audio files using the free digital audio workstation, Audacity.

White noise, the annoying constant hum that's often present in audio recordings from various sources, can be a real pain to deal with, even for experienced editors. However, thanks to Audacity's powerful tools and easy-to-use interface, it's simple to remove the unwanted noise from your recordings.

Step 1: Download Audacity. If you don't already have it, download Audacity from the official website and install it on your computer. Once ready, launch the program and open your audio file.

Step 2: Select the Noise Reduction Tool. Before you can start reducing white noise, you'll need to determine the noise profile of your audio recording. To do this, find a section in your audio file where only the white noise is present – no voices or other sounds should be in this section. Select it using your mouse, then head to the 'Effect' menu at the top of the screen and select the 'Noise Reduction' option.

Step 3: Apply the Noise Reduction Effect. In the Noise Reduction window, click the 'Get Noise Profile' button. This will allow Audacity to analyze the white noise and create a filter specifically tailored to remove it.

Step 4: Select the Entire Audio File. Once you have the noise profile, you'll want to apply the noise reduction effect to the entire audio file. Press 'Ctrl + A' to select everything, then return to the 'Effect' menu and click 'Noise Reduction' once more.

Step 5: Tweak the Settings. In the Noise Reduction window, you may need to adjust the settings to achieve the best results for your specific audio file. There are three settings you can tweak: 'Noise Reduction (dB)', 'Sensitivity', and 'Frequency Smoothing (bands)'. Adjust these sliders carefully, as setting them too high could cause distortion, while setting them too low may not remove enough noise. Once you're satisfied, click the 'OK' button to apply the effect.

Step 6: Listen and Adjust. Play back the edited audio file to ensure the white noise is gone and the quality is maintained. If there's still too much noise, undo the effect using 'Ctrl + Z', then return to the Noise Reduction window and adjust the settings again. Repeat this step until you achieve the desired result.

Step 7: Export Your Clean Audio. With your audio now free of white noise, you can export your pristine recording by going to the 'File' menu, selecting 'Export', and choosing your preferred file format. Save your edited audio file, and voila – you now have a clean, white noise-free audio recording.

Audacity makes removing background white noise Audacity makes removing background white noise from your audio files simple and efficient. With the right settings and a little patience, you can make your recordings sound more professional and polished in no time.

bottom of page