How to Split Audio in Audacity?

To split audio in Audacity you will have to:

  1. Using Selection Tool mark where you want to split your audio.
  2. Go to Edit>Clip Boundaries>Split OR press Ctrl+I
Using Selection Tool to mark where you want to split audio track in Audacity
Splitting audio in Audacity (Ctrl+I)

How to merge audio after splitting?

To merge audio tracks after you’ve split them put the tracks together using Time Shift Tool. Then click on the line separating the two tracks to make it dissapear and you’re done.

Joining tracks with Time Shift Tool
Merging tracks by clicking on the line

How to split audio at silent parts in Audacity?

If you want to split audio into audible parts only, then you have an option to remove silent parts and split an audio track into smaller chunks. It’s very useful when recording your lines for a voice-over project.

Here’s how you can remove silent parts and split audio in Audacity:

  1. After recording go into Multi-view mode (Audio Track>Multi-view). Multi-view will show you where the silent parts are which you can’t see if looking into waveform only.
  2. Select your whole recording and apply noise gate effect (Effect>Noise gate). Noise gate is not available by default, you’ll have to install it as a plug-in, you can read how to do that here. Alternatively, you can apply Amplify effect onto parts that you want to make silent, but that’s a longer route.
  3. In noise gate apply a maximum (-100dB) Level reduction and click OK. Now the background noise will be deleted and you’ll have silent parts in your audio.
  4. Go to Edit>Clip Boundaries>Detach at Silences and you’re done.
Selecting Multi-view
Using noise gate to remove background noise and make silent parts.
Silent parts created after using noise gate
Edit>Clip Boundaries>Detach at Silences
Audio after removing silent parts in Audacity.

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