Audacity Basics

Preparation

Download Audacity

Audacity is installed on many college computers, but you can also find Audacity on the Audacity download page.

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The FFMPEG Library

Sometimes, in order to import/export files in certain formats (specifically MP3 files), you will need to install a plugin.

The FFMPEG library is needed to import or export a range of proprietary file formats (you don’t need this if you’re only recording directly into Audacity and not importing files)

To install, download the file to your computer and double-click to install. Then open Audacity. No further configuration should be required.

Note: Recent versions of Audacity installed as part of the image on a Langara machine should already have this installed.

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Recording

Select Input and Output

The Audacity controls with arrows pointing to the Input and Output dropdowns.

Make sure you’ve selected the correct external microphone (input) and speakers (output). If you’re using a headset mic, these will be the same device.

Note: If you’re using a new microphone or headphones, plug in the device and make sure your operating system has recognized it (if necessary) before you launch Audacity.

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Controls

The Audacity playback controls. From left to right: Pause, Play, Stop, forward/backward, Record.

Depending on your operating system, the buttons might have a different shape, but their function is the same.

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Tools

Selection Tool

For choosing start/endpoints, selecting tracks, or parts of tracks, for editing or deletion.

The Audacity controls with an arrow pointing to the Selection tool.

Time Shift

In previous versions of Audacity, you were required to select a specific tool to move tracks or segments around. As of version 3.x, you can just click and drag to shift segments forward or back in time or move them between tracks.

an audio segment with a closed fist pointer, indicating the segment can be dragged
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How to record

To start recording

Click the Record button (Audacity will create a new track each time you click Record).

To stop recording

Click the Stop button.

Change start point

Use the Selection Tool (see Tools) to choose a new start point for recording or playback.

Mute tracks

Remember to mute the previous track(s) if you stop recording and then start again.

screencap of the left edge of an Audacity track, with the pointer on the Mute button

Delete tracks

Click on the “x” in the top left corner of the track.

the left edge of an Audacity track, with the pointer on the "X" button

Linear vs. dB track view

To switch between the Linear (basic) and dB track views, right-click and select “dB” – this can often be useful when editing out very short sections or working with very quiet audio.

screencap of the left edge of an Audacity track, with a context menu open; the pointer is over "dB"
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Recording a “silence” track

This is useful for filtering out background noise later. Just make sure you’re in a quiet space, and then record 20 or more seconds of ambient background noise with no one speaking. When you’re finished, mute this track. You will return to it later.

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Naming tracks

This is important if you end up with multiple tracks. Rename the track by clicking on the track menu and
selecting “Name.”

screencap of the context menu of an Audacity audio track; the pointer is over the Name option
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Save early, save often

Remember to save your Audacity project (File > Save or Ctrl+S) every time you stop recording or make a change to a track.

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Processing

Remember to un-mute tracks as you edit them.

Editing tracks

Cut out a section

Using the Selection tool, click and drag along the section you want to cut. Then press the Delete key on your keyboard.

screencap of the Audacity tool box, with the Selection tool outlined in red

Silence a section

Using the Selection tool, click and drag along the section you want to silence. Then press Ctrl + L.

screencap of an Audacity track with the a highlighted section Silenced (there are no waveforms)

Move a track

Click on the top edge of the track you want to move and drag it forwards, backwards, or up and down into separate tracks.

an audio segment with a closed fist pointer, indicating the segment can be dragged

Split a track

To create a split in a track (you might do this if you want to separate two sections, to put something in between, like music), use the Selection tool and click on the spot on the timeline where you’d like to create the split. Then click Edit > Clip Boundaries > Split, or press Ctrl + I.

Audacity with the Edit menu open, showing Edit > Clip Boundaries > Split

Import music or other files

  1. Go to File > Import > Audio
  2. Navigate to the file and click Open
  3. The imported audio will appear as a new track at the bottom of your project
  4. Using the Time Shift tool, drag it to where you want it
  5. Optionally: fade the music in and out by selecting the beginning and end of the file with the
  6. Selection Tool and going to Effect > Fade Out
Audacity with the File menu open, showing File > Import > Audio

Filter out background noise

  1. Unmute the “silence” track you recorded earlier and select it with the Selection Tool. You can
    also select the entire track by clicking in the track’s Track Control Panel (rather than on any of
    the controls or buttons)
    screencap of the pointer selecting an entire Audacity track
  2. Go to Effect > Noise Reduction
  3. Under Step 1, click Get Noise Profile
    screencap of part of the Noise Reduction window, with Step 1 - Get Noise Profile
  4. The Noise Reduction window will close; now select the track(s) you want to fix and go to Effect >
    Noise Reduction
    again
  5. Under Step 2, change levels if you want and preview with the Preview button; when you’re
    finished, click OK and wait while the Noise Reduction processes
    screencap of the bottom half of the Noise Reduction window, showing Step 2

Note: Be careful how much you use this filter. Turning the “Noise reduction” slider too high can have
distorting effects on the rest of the track.

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Exporting your podcast

  1. Go to File > Export Audio to export the entire project (to export only a portion of the project, select it with the Select tool and choose Export Selected Audio instead)
    the Audacity File menu open, with the pointer over Export Audio
  2. Choose a place to save, a file name, and a file format under Save as type (.mp3 and default Medium settings recommended)
    screencap of the lower half of the Save as Type window
  3. Click Save
  4. Enter your metadata (Artist Name and Track Title minimum)
    the Audacity Edit Metadata window
  5. Click OK and wait for the file to render; this could take anywhere from a few seconds to several minutes, depending on the size of the file and the speed of your computer
    progress bar of Audacity exporting a project
  6. Navigate to where you saved the file and listen to your new podcast
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