After recording, it has many background sound or noise. To take background noise out of a recording file, we need an background noise or sound removal application and there has the best audio cleaner, Audacity a free software for Windows, Linux/Ubuntu, Mac. With Audacity an audio recording and editing software, we can edit any audio formate such as mp3, avi, wav etc.
sudo apt-get install audacity
How to Remove Background Noise From Audio Recording With Audacity
|Click on ‘Get Noise Profile’|
|Click on Ok|