Tips for Audacity Noise Removal

Part 1: How to Remove Background Noise with Audacity

There are various reasons why you would want to have this noise removal effect installed in your device. If you record an audio session or a lecture for the class room and you have some unwanted and unpleasant sound recorded along with it, you will definitely want to get rid of it. Why keep the snore or a cough or a kid's cry accompanying the audio that is meant for serious study? Or if you have a soothing soft lyrical track, you will never want to be shocked in between with a dog's barking or an automobile honking in between. Having a smooth and peaceful audio track is the first and foremost priority. Let us observe for ourselves how this can be done with the help of the Audacity Audio Editor and its effects. The following steps are a guide as to how noise can be removed from the background of an audio track.

• Open the Audacity Window. Record an audio with some noise in the wav format or MP3 format. If you already have a recorded track with noise that you want to clean, you can very well use it.

 

• Select a small part of the audio that has only the noise; the actual audio speech or music is either silent or not identified there. Select the part that is identified as 'noise'. Place the mouse at the beginning of the noise part and drag it to make the selection.
• Go to Effects> Noise removal and click 'Get Noise profile'.

 

• Select the entire audio after the noise profile is set.
• Go to the Effect> Noise Removal and adjust Noise reduction, Sensitivity and frequency soothing. Select a very small portion to start with.
• Check the outcome by clicking the preview. If the noise has been removed, click OK.
• If the noise is still there or if the track sounds unpleasant after the removal, you can get the original track back by clicking Edit>Undo Noise Removal. The original file will be restored.

 

• Attempt the steps once again and adjust the part that should be removed by sliding the bar as much as required.
• Click the preview button to listen to the track.
• Click 'Remove Noise' to clear the track.
• Once the desired effect is received, export the entire file to MP3 by selecting File> Export as MP3.

 

Part 2: How to Record Audio or Music without Noise

The microphones that are available today are very sensitive. They can catch the slightest of sounds that are in the vicinity while the recording is being done. The hissing of fans and humming of ACs are all captured in the recording. Some kinds of deliberate sounds like laughing and coughing, dragging of chairs and creaking doors can be done with. However the very soft sounds that are almost inaudible cannot be avoided. So how we go for recording without the interference of any noise is a matter of consideration. The Audacity sound recorder and editor have such effects that can make this happen. Here are the steps that you need to follow in order to record audio without any noise.

• Download and Install Audacity Audio Recorder on your device or system. It is the first step to record noise-free audio.
• Download and record LAME MP3 plug in. It is essential to export your sound files to MP3 format because Audacity does not have any inbuilt MP3 encoder.
• Plug in your cables and open the Audacity window from the menu.

 

• Start recording by clicking the red button. You can observe the waveform on the screen. You should increase or decrease the microphone level according to the sound requirement. This can be done by sliding the microphone bars.

 

 

• When the recording is done, you should check the volume level by clicking Effect> Amplify.
• Check the track for unwanted background noise. If you have any such blemish, you can get rid of it by following the Noise Removal effect of Audacity that has already been dealt with in detail.
• Export the recorded file to MP3 format by going to File> Export as MP3.

In this way you will be able to record music or other types of sounds without any background noisy disturbances.

Part 3: Best Audacity Alternative to Record Music