Audacity 2.4.0 Release (withdrawn)

We temporarily re-instated the 2.3.3 release for downloads whilst we investigated a serious bug that affects 2.4.0 on Windows Mac and Linux. The bug causes loss/corruption of audio.

The bug happens when you have two projects open at the same time and paste audio from one project into the other. Thanks to Jack L from FreeBSD for alerting us to the problem and giving us steps to reproduce it.

With that information we were able to find the root cause, make a fix and release 2.4.1.

We’re pleased to announce release of Audacity 2.4.0 which replaces all previous versions for Windows, macOS and Linux.

We’ve put a lot of time and work into it.


We have now caught up with Apple’s ‘notarization system’. Audacity on Mac is notarized and runs on Catalina.

Time Toolbar:

We have split the recording/playing time off from the selection toolbar and it can now be dragged to make it larger. This is particularly for people recording themselves playing a musical instrument, where they will typically be further from the screen when playing, and benefit from a larger numerical display.

Large ‘Time Toolbar’ (on the right)

The new toolbar can be ‘undocked’ from the foot of the screen, and made larger still, for more distant viewing.


We have added a new optional mode for viewing audio. In this new mode you can see both the waveform and a spectrogram at the same time. Previously you would switch back and forth between them if you wanted both.

Multi-view mode with spectrogram above and waveform below

You can get into this multi-view mode by clicking on the down-pointing triangle beside the track name in the panel on the left of the wave. This will drop-down a menu with options, including multi-view mode.

These screenshots of Audacity showing the time toolbar and multi-view mode were made on the windows version of Audacity, using the dark theme. Dark theme can be selected from the preferences.

Other Changes:

For a more detailed account of changes, including a list of some of the many bugs fixed since 2.3.3, see: