Audacity - How to remove Background Noise from the recording?

Audacity is the simple and free software to record audio at home. Since we do not have sound-proof rooms at home, there will be background noise (Noise is not the background sounds) in the audio we record. But there are techniques available in Audacity to remove this noise from the recorded audio with some simple steps.

Download it from here

Before we start please ensure that you record your voice in a silent room (Free from other sounds).

1. Open Audacity, record your voice and after the recording record the background audio (Also known as Noise) with out your sound (This is to sample the background noise).

2.Now select the audio part which does not contain your voice (The noise part). Then go to the menu
"Effect" -> "Noise Removal" and in the dialogue box select "Get Noise Profile"

3. Close the dialogue box, select the entire recording, again go to the menu "Effect" -> "Noise Removal", but this time, adjust the "Noise Reduction" to around 23, "Sensitivity" to -3, and "Frequency Smoothing" to 300, Click "Review" to check whether the noise has been removed, and If Yes, click "Ok".

Before and After Noise Removal

Record your sweet voice and Let the world hear that.

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