How to Use Ripple Editing in Audacity with Sync-Lock

This article explains the concept of ripple editing and how to achieve it in Audacity using the Sync-Lock Tracks feature. You will learn what ripple editing does, why it is essential for multi-track audio workflows like podcasting and music production, and the exact steps required to enable and use Sync-Lock to keep your audio tracks perfectly aligned when making edits.

What is Ripple Editing?

Ripple editing is an audio and video editing method that automatically moves downstream clips forward or backward on the timeline whenever you add, remove, or change the duration of a clip.

In traditional editing without ripple behavior, deleting a section leaves an empty gap of silence that you must manually close. Conversely, pasting new audio into a track will overwrite existing media or require you to manually move everything downstream to make room. Ripple editing prevents these issues by "rippling" all subsequent audio down the timeline, closing gaps immediately upon deletion and pushing audio forward when new content is inserted.

Ripple Editing in Audacity: Sync-Lock Tracks

Audacity does not use the term "ripple editing" in its interface. Instead, it provides the same functionality through a feature called Sync-Lock Tracks.

When Sync-Lock is active, Audacity links your tracks together into synchronized groups. If you cut, delete, paste, or change the speed of audio on one track, Audacity automatically applies the corresponding time shift to all other linked tracks. This ensures that multi-track projects—such as a podcast with multiple microphones or a voiceover layered over background music—stay completely in sync.

How to Enable Sync-Lock Tracks in Audacity

Enabling Sync-Lock in Audacity takes only a couple of clicks:

Open your project in Audacity with two or more tracks loaded.
In the top menu bar, click on Tracks.
Click on Sync-Lock Tracks to toggle the checkmark on.

Once enabled, you will see a small clock or chain-link pattern appear across the waveform backgrounds and in the track control panels on the left. This visual pattern indicates which tracks are currently linked.

How to Use Sync-Lock for Ripple Editing

Once Sync-Lock is enabled, ripple editing functions automatically during your normal editing workflow:

Deleting/Cutting Audio: Select a portion of audio on a single track and press Delete or Ctrl + X (Cmd + X on Mac). Audacity will delete the selection on the chosen track and remove the corresponding duration of time from all linked tracks, shifting all remaining audio to the left.
Inserting/Pasting Audio: Place your cursor on a track and paste copied audio (Ctrl + V or Cmd + V). Audacity will split the track, insert the audio, and shift all audio to the right across all linked tracks to maintain alignment.
Generating Silence or Tone: If you use the Generate menu to add silence, noise, or a tone, the duration will be added across all locked tracks.

To turn off ripple editing and edit tracks independently again, return to Tracks in the top menu and click Sync-Lock Tracks to uncheck the option.