Install and use Audacity on Ubuntu for audio editing

Audacity is a free, open-source audio editor for recording, trimming, repairing and polishing sound. Installing and using Audacity on Ubuntu for audio editing suits podcasters, musicians, students and anyone who needs to prepare a WAV, MP3 or other recording. Its waveform view makes visual editing straightforward, while built-in effects handle noise, compression, equalisation and normalisation.

Ubuntu offers Audacity through its standard repositories and as a Snap or Flatpak. The packaged version integrates neatly with the desktop and is usually the easiest choice for a new installation. Snap and Flatpak versions can update independently, yet they may store settings or plug-ins in different locations. Choose one method and avoid installing all three unless you have a specific reason.

Before changing a recording, copy it to a working folder and keep the untouched source. Audacity normally edits a copy in memory, but saving the editable project is still essential if you want to revisit decisions. Use a clear filename and create a separate project for each final version, especially when preparing several edits of the same interview or performance.

Many Australian users encounter noisy audio during train or bus journeys in Sydney, on Melbourne trams or in shared offices. Wireless earphones can make a rough voice memo more usable, although they are rarely ideal for recording a live instrument. Audacity also fits the country's active independent music scene, where artists, podcasters and community radio producers regularly turn field recordings, rehearsals and interviews into shareable audio.

Choosing the right installation method

First confirm that the machine is running a current Ubuntu release, then update the package list in Terminal:

sudo apt update
sudo apt install audacity

This pulls in Audacity and the libraries it needs. The command requires administrator rights, so expect a password prompt. On a fresh desktop, the launcher appears under Applications; you can also start it with audacity or search for it from the Activities overview.

Ubuntu's Snap alternative is installed with:

sudo snap install audacity

Flatpak users can install the official Audacity package from Flathub:

flatpak install flathub org.audacityteam.Audacity

If Flatpak is not already present, install it first with sudo apt install flatpak. Each route produces a working editor, but menu names and access to external effects can differ slightly. Ubuntu newcomers can consult the UbuntuNext resource library for related desktop and open-source guidance while deciding which installation suits their system.

Do not install every version merely to compare them, as duplicate entries can make plug-in troubleshooting confusing. The repository package generally follows Ubuntu's release lifecycle, while Snap and Flatpak receive their own updates. Audacity itself is free; if you buy a commercial effect, sound library or training package, Australian Consumer Law may apply to that purchase or service, depending on its terms and the supplier's role.

Setting up playback and recording devices

Open Audacity and check its device settings before importing or recording. Ubuntu normally uses PipeWire, with PulseAudio compatibility in many releases, and Audacity can usually follow the desktop's default output. If sound appears in other applications but not in Audacity, open the audio preferences and select the correct Playback Device. The Recording Device should be your microphone or audio interface rather than a monitor or Bluetooth device.

USB microphones labelled class compliant are a straightforward choice because the operating system usually detects them without extra drivers. A hardware interface gives more control over microphone gain and latency, but its sample rate must be supported by both the device and Linux. Check the meters while speaking or playing: peaks near the top can indicate clipping, while a quiet level will need gain adjustment before recording.

For spoken-word editing, a built-in laptop microphone may be adequate. For music, connect the interface before launching Audacity and use headphones to prevent feedback. Bluetooth headphones introduce noticeable delay and occasional dropouts, so reserve them for listening to a finished file. After changing a device, use Audacity's Audio Setup panel to confirm the input and output pairing, then play a short test.

Importing audio and learning the timeline

Use File > Import or drag a recording into an empty project. Audacity displays separate tracks for imported files, and their waveforms make silence, clicks or damaged passages easy to spot. Zoom in before making precise edits; zoom out to understand the whole recording. Keep the source track labelled clearly, and use Edit > Undo whenever a selection or effect does not behave as expected.

Click and drag in a waveform to select a region, then cut, copy, paste or delete it. To split a long take at a chosen point, place the cursor there and use the Split command. The Envelope Tool can create fades and level changes, while dragging a clip edge usually adds a short fade that prevents abrupt clicks. Save the session as an .aup3 project to retain the edit history and effect settings.

For a clean interview, first mark the sections to keep and remove long pauses only if the speaking rhythm sounds natural. Audacity uses non-destructive editing: the imported audio remains intact until you export a new file. This is particularly useful for a musician testing several arrangements from one rehearsal, or a producer shortening a community-radio interview without losing the original conversation for a later edition.

Cleaning recordings and applying effects

Noise reduction begins with a sample of unwanted sound. Select a short section containing only room hum, hiss or traffic, then open Effects > Noise Reduction and choose Get Noise Profile. Next, select the spoken portion and apply the effect with a moderate reduction. Including speech in the sample can produce artefacts, so preview several settings and preserve some natural room tone.

Other common tools include Compressor for controlling uneven speech, Graphic Equalisation for tone, and Normalize for consistent peak level. Change Pitch and Change Speed are useful for matching clips, although substantial changes can sound artificial. Apply heavy processing to a duplicate track when comparison would help. Effects are chainable, but every stage adds processing, so restraint often produces a more believable result.

Audacity supports built-in effects, Nyquist and LADSPA plug-ins, with LV2 support available in current releases. Install a plug-in through its own package or trusted developer, then use the Plugin Manager to refresh the list. Repository, Snap and Flatpak installations place plug-ins in different directories, and a plug-in visible on the desktop may not load inside a sandboxed Audacity package.

Recording, saving and exporting audio

To record, connect the microphone, choose its input in Audio Setup and click the red Record button. Speak or perform a short test, watch the level meters and stop when finished. Audacity adds the recording as a new track, ready for trimming. If input is silent, check the selected device and mute controls; if it distorts, lower the microphone gain or move farther from the source.

Save the editable project, then use File > Export rather than Save when producing a deliverable. WAV and FLAC are lossless choices for masters, while MP3 and Ogg Vorbis are convenient for sharing. If an encoder is missing, install the common command-line tools with:

sudo apt install ffmpeg lame flac vorbis-tools

Choose 44.1 kHz and 16-bit for CD-style material, or 48 kHz and 24-bit for video and high-resolution production. Check the exported file in another player before distributing it.

Audio can contain private conversations and copyrighted performances. Australia's Privacy Act mainly regulates qualifying organisations, while state and territory laws differ on recording or publishing private conversations; Victoria's rules, for example, can make unauthorised publication unlawful. Obtain clear consent for identifiable participants, and check the Copyright Act 1968 before commercially reusing another person's recording. Local rules can change, so specific circumstances may require legal advice.

The practical workflow to remember

A reliable workflow is simple: preserve the source, import or record, label the track, make visible edits, apply gentle clean-up, save the .aup3 project and export a fresh copy. For a noisy Australian podcast interview, that might mean selecting room tone, reducing hiss, tightening pauses, normalising speech and saving both a lossless master and an MP3 for upload. Keep each stage reversible until the final export.

If playback fails, compare Audacity's selected output with Ubuntu's sound settings and test the device in another application. If plug-ins do not appear, confirm that the effect was installed for the matching Audacity package. For corrupted or unstable settings, Audacity's safe-mode launch can isolate a preference problem; existing projects should remain in their own folders and be backed up before resetting anything.

The essential habit is to let the waveform guide each edit, listen on ordinary headphones and speakers, and compare before and after processing. The result to remember is straightforward: keep the original recording, configure the right devices, save the editable Audacity project, and export a properly named file in the format required by its listener.