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Noise Reduction and Normalization in Audacity

1 min read

Background noise can be an issue in audio recordings, but Audacity offers a straightforward way to reduce unwanted noise and normalize the volume of your audio. Follow these steps to clean up and enhance your audio.

Noise Reduction Process: #

Step 1: Identify a Silent Section with Background Noise
Locate a portion of your audio where only the background noise is present (e.g., a silent section). Use the Zoom Tool to zoom in on this section for better precision.

Step 2: Select the Noise Profile
Switch to the Selection Tool and highlight the chosen silent section. Go to Effect > Noise Reduction and click Get Noise Profile to capture the background noise.

Step 3: Apply Noise Reduction to the Entire Track
View the entire track by selecting View > Fit to Width. Highlight the entire audio track, then return to Effect > Noise Reduction. Click OK to apply the default noise reduction settings. Adjust these settings if needed for better results, and use the Preview button to hear how the audio will sound before applying the changes.

Step 4: Noise Reduction Complete
Once applied, Audacity will process the track, removing the background noise.

Normalizing the Volume: #

Step 1: Highlight the Entire Track
Use the Selection Tool to select the entire audio track.

Step 2: Apply Normalization
Go to Effect > Normalize. Use the default setting of -1 dB and click OK to apply normalization. Preview the audio using the Preview button if needed.

Step 3: Final Check
After normalization, your audio should have an even volume level, ready for further edits or export.

By following these steps, you can effectively reduce background noise and ensure consistent volume levels in your audio. This makes your recordings clearer and more professional.