Filmora
Filmora - AI Video Editor
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AI Audio Stretch

In Wondershare Filmora on Windows, the AI Audio Stretch feature automatically matches audio length to video duration. It intelligently extends or shortens sound without affecting pitch or clarity. This ensures seamless synchronization between visuals and audio, making edits smoother and more professional while saving time on manual adjustments.

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For Win 7 or later (64-bit)
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For macOS 10.14 or later

Step 1. Create a New Project

Launch Filmora and go to the home screen, then select the New Project option to open the editing workspace and begin working. Import the audio into the tool’s interface, then drag it onto the editing timeline to proceed.

start with new project

Step 2. Choose Audio Stretch Feature

Access the file in the timeline, head to the toolbar at the top, and expand the toolbar list. Select the Audio Stretch option from the list by clicking on it.

select audio stretch effect

Step 3. Drag and Stretch Audio

Select the audio clip you want to adjust, then move it along the timeline by dragging it forward or backward. This set the exact starting or ending point as needed.

drag and stretch audio

Step 4. Delete Stretched Audio

To remove the applied effect, right-click on the clip and select the Delete Audio Stretch option to undo the stretching.

undo stretched audio

Upgrade to the Newest Filmora Unleash Your Freedom to Creativity
Free Download
For Win 7 or later (64-bit)
Free Download
For macOS 10.14 or later