how to Remove Noise Sound Completely



31 January 2017

Video tutorial:

 

Video subtitle:

This video will show you how to make sound free from noise and also make it much louder. This tutorial use Audacity version 2.1.2 and you can download this app for free at audacityteam.org.

Let’s hear the result.....

  1. First we will show you how to completely remove the noise or soothing sound.
  2. Second, we will show you how to make it a little bit louder but still pleasant to hear.
  3. Third, We will show you how to make it even cleaner. (This might be useful if your recording have a really bad noise sound).
  4. Fourth, we will show you how to make it much louder.

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You don’t have to do all steps in this tutorial. Because each steps might affect the sound characters or quality.
Just do the steps that you think is necessary.
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The process is really easy. You don't have to put numbers, do a fine tuning etcetera. You just need click a few buttons then it will be done automatically.

=== STEP 1: Remove the Noise / Soothing Sound ===

First, let’s open the file or you can directly record the sound using audacity. Click and Drag at the noise part or in a part were we don’t speak or no music at all. > Click Effect > Click Noise reduction > Click Get Noise Profile > Press CTRL + A at the keyboard > Click again Effect > Noise Reduction > Click OK.

Repeat the step if you still hear the noise. Click and Drag at the noise part to get a sample Click Effect > Click Noise reduction > Click Get Noise Profile > Press CTRL + A at the keyboard > Click again Effect > Noise Reduction > Click OK.

If necessary, repeat the step one more time.... Do it until it create a thin line or until you think is enough
Let’s check the result.. Pretty good.

=== STEP 2: Make it a little bit louder ===

If you want to make it a little bit louder but still pleasant to hear, click Effect > Normalize > Thick Remove DC Offset and Normalize maximum amplitude to, usually I fill it -1.0 > click OK

Then we click Effect > Compressor > OK. Now let’s hear the result.

=== STEP 3: Further cleaning ===

If you feel the sound not clean enough, click Effect > equalization > Select Curve > choose Bass Boost > click OK.

open effect again > Equalization > Select Curve > choose treble boost > click OK.

Then just clean the noise again. Click and Drag at the noise part > Click Effect > Click Noise reduction > Click Get Noise Profile > Press CTRL + A at the keyboard > Click again Effect > Noise Reduction > Click OK.

Let’s test the result

=== STEP 4: Make it Much Louder ===

Now we will make it louder. Click Effect > Limiter > choose Hard Limit > click OK.
Open Effect again > Amplify > Ok…

Let’s hear it.

If you want to make it much much louder, you can click at the Effect > Amplify > thick Allow Clipping > then slide it to the right as you want it. But there is a side effect, if you “Allow Clipping” it can create a cracked sound. So it is not too recommended.

If you done, click File > Export Audio > type a name, do a file type selection, bitrate etcetera > click save.

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