Trimming clips and improving audio quality

Raw recordings are rarely ready to publish as-is. Mozaik gives you quick ways to tighten footage and clean up audio right in the web app, so getting to a finished video takes far less manual editing than a traditional video tool.

Trim by editing the transcript

For speech-heavy clips, the fastest way to trim is text-based editing. Select a clip on the timeline or in the preview, open Trim in the right-hand panel, and Mozaik shows the clip's transcript. Delete the words or sentences you don't want — like editing a document — and Mozaik cuts them from the timeline for you, with no scrubbing back and forth. You can also use Remove silences to strip dead air in one click.

Good to know: Text-based editing needs a transcript, so it works on real recordings with speech — not on stock footage or clips without one.

Trim and split clips on the timeline

Open your project in the editor and select a footage clip on the timeline. Drag the handles on either edge to trim the clip shorter. To cut a clip into separate parts, select it, move the playhead to where you want the cut, and use the Split tool — the scissors in the timeline toolbar, or press C.

Keep every recording to length

Each footage element has a Recording duration setting, found under the clip's Duration tab. It defines the minimum and maximum length a recording may have. Setting this keeps clips within the time the scene actually needs, so footage arrives close to the right length instead of needing heavy trimming afterwards.

Good to know: This is especially handy when other people record into your project — the limits guide them to capture clips that fit the scene.

Improve audio quality automatically

Open Recordings in the left navigation, select a clip, and look for the Quick edit options below its details. Choose Improve audio quality to run Mozaik's AI audio enhancement, then pick an Optimization intensity — low, medium, or high. Mozaik processes the clip and saves an enhanced version (its file name ends in -audio-enhanced), so the AI handles the audio cleanup for you.

Good to know: The enhanced clip is saved as a separate version, so your original is never overwritten — you can always fall back to it.

More one-click fixes

The same Quick edit options include two more fast adjustments:

• Mute video — remove the clip's audio entirely, useful when music or a voice-over carries the scene.

• Convert video to portrait format — turn a clip into 9:16 for vertical and social formats.

Less editing, more output

These tools are built for speed: trim and split take seconds, the AI does the audio work, and length limits keep raw footage tidy from the start. The less time each clip needs, the more finished videos your team can turn around — which is the whole point of building video on an automation layer.

Related articles

• Adding subtitles and captions to your videos
• Adding music to your video
• Video versions