Do you have a sound file that you want to edit to create a custom ringtone, perfect a podcast, or cut to perfectly fit a video's background, but you don't want to spend money on an expensive audio editing program? Audacity is a perfect solution. Audacity is a free, open source audio editing program that is useful for a wide variety of audio tasks. If you want to download it, you can visit the Audacity site here.
Once you have installed Audacity, here are a few ways to use it effectively:
Remove Background Noise - Many inexpensive microphones have background noise during recording. Audacity can remove much of that noise. On the Effect menu, the Noise Removal tool will walk you through the process of removing the noise.
Remove Silence - Obviously, you can remove sections of silence by hand, but that can be challenging if you have a long recording. The Truncate Silence feature will compress sections of silence automatically.
Record the Output - If you want to record the output of your computer, putting a microphone next to the speaker is not a good solution. However, running an audio cable from the output jack to the input jack will allow the computer to record the exact output. You will be unable to use the speakers unless you use a splitter cable to provide two outputs.
Amplify or Normalize - Is the audio (or parts of it) too soft or loud? You can use the amplify tool to adjust the volume for an entire section. If the audio volume varies too much (such as an interview where one mic was set too low), you can use the normalize tool to bring it back into balance.
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