Filter Background Noise

Audacity animated gif for filtering noise

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Audacity can help with basic noise reduction from a recorded audio file.

1 Open the audio file.

2 Select the section of audio to use as noise sample. For example, a good section might be at the very start of the recording before you start speaking to capture the level of noise.

3 From the Effect menu, select Noise Reduction.

4 Click the Get Noise Profile button.

5 To preview changes

• Select the section of audio to filter. For example, double-click the timeline to select the entire contents.

• From the Effect menu, select Noise Reduction.

• Click the Preview button.

6 Adjust settings as desired and check the preview.

7 Click OK.

8 Save the project.