The Audacity Audio Editing Tutorial


What is Audacity?

Audacity is a free, open-source audio editing program that works on Windows, macOS and Linux. You can use it to:

  • Cut and trim audio
  • Remove noise
  • Adjust volume
  • Add effects (fade in/out, echo, etc.)
  • Export audio in common formats (MP3, WAV)

Getting started

Open Audacity

Click on the Audacity icon to open Audacity. You’ll see a blank project with a waveform area.

Import an audio file

To open an existing audio file:

  • Click File > Import > Audio
  • Or, drag and drop an audio file into Audacity

You’ll see the audio displayed as a waveform.

Understanding the interface (a quick tour)

  • Waveform: The visual representation of sound
  • Timeline (top): Shows time in seconds/minutes
  • Playback Controls:

    • ▶ Play

    • ⏸ Pause

    • ⏹ Stop

  • Selection Tool (I-beam icon): Used to highlight audio
  • Tracks Panel (left): Shows track name, mute/solo, volume

Select audio

  1. Choose the Selection Tool (default tool).

  2. Click and drag over part of the waveform.

  3. The highlighted area is your selection.

Tip: Press Ctrl + A (Windows) or Cmd + A (Mac) to select all audio.

Cut, Delete and Trim audio

  • Cut: Remove audio and copy it
    Edit > Cut or Ctrl/Cmd + X
  • Delete: Remove audio completely
    Press Delete
  • Trim: Keep only the selected part
    Edit > Remove Special > Trim Audio

Move audio

  1. Select the Time Shift Tool (↔ icon).

  2. Click and drag the audio left or right on the timeline.

Adjust volume

Option A: Amplify

  1. Select audio

  2. Click Effect > Volume and Compression >Amplify

  3. Adjust the level and click OK

Option B: Track Volume Slider

  • Use the volume slider on the left side of the track for quick changes

Fade In and Fade Out

  • Select the beginning of the audio > Effect > Fade In
  • Select the end of the audio > Effect > Fade Out

Great for music and smooth transitions.

Remove background noise

  1. Select a section with only background noise

  2. Go to Effect > Noise Reduction > Get Noise Profile

  3. Select the entire track

  4. Go back to Noise Reduction

  5. Click OK

Tip: Don’t overdo it. Too much noise reduction can make audio sound robotic.

Add simple effects

Some common beginner effects:

  • Normalize – balances volume
  • Echo – adds repeating sound
  • Reverb – makes audio sound like it’s in a room

Find them under Effect in the top menu.

Export your audio

When you’re finished:

  1. Click File > Export

  2. Choose a format (MP3, WAV, etc.)

  3. Name your file

  4. Click Save

Save your project

  • Use File > Save Project

  • This saves an Audacity project file (.aup3) so you can edit later

Note: Project files are not playable audio - always export when finished.

Helpful keyboard shortcuts

  • Space – Play / Stop

  • Ctrl/Cmd + Z – Undo

  • Ctrl/Cmd + Y – Redo

  • Ctrl/Cmd + A – Select all

  • Delete – Remove selected audio