Tighten tutorials, demos, interviews and talking-head videos by shortening long silent gaps. Choose how quiet and how long a pause must be before it is cut, then download the finished MP4.
Choose a file, keep the defaults or adjust the options, then click the main button. The finished file downloads automatically when it is ready.
Upload the video, audio or GIF from your device. Its name and preview appear immediately so you can confirm the selection.
The defaults are ready to use. Change any visible format, quality or size options only when you want a different result.
Click Convert, Compress, Normalise or Make GIF. The finished file downloads automatically when it is ready.
Simple tools, clear results, no unnecessary steps
Each cut keeps a short pause around the speech, so sentences do not crash into each other and the result still sounds human.
Choose a setting for a quiet room, everyday recordings or softer speech instead of working through a timeline by hand.
Download the complete converted file in the format you chose, with no preview-only result or watermark.
Open the tool on a phone or computer and get started. No app or extension is required.
Conversion is free with a signed-in Spira account. There is no per-file charge and no length ceiling hidden behind a paywall.
The tool looks for audio that stays below your chosen level for at least the selected duration. A quiet room produces cleaner cuts than a recording with music, traffic or steady background noise.
Use it to remove dead air before polishing a tutorial, product demo, interview or voiceover. Review the downloaded video before publishing, especially when the speaker talks softly or pauses for emphasis.
No. It removes the middle of longer silent gaps and keeps a short pause at each cut so speech remains easy to follow.
Start with Balanced. Choose the quiet-room setting when speech is clean and close to the microphone, or Keep quieter speech when the speaker is soft or the recording level is low.
It can, but steady sound may prevent a gap from being detected as silence. For the cleanest result, reduce background noise first or use a less sensitive setting.
No. The upload and processed file are temporary and are deleted after the MP4 download starts.
Spira AI takes a script or a link and produces a finished short with voiceover, visuals and captions, then publishes it on a schedule. These tools are the bits you reach for along the way.
We ship new features every day to ensure you always get the latest models and stay satisfied with us.
Plan Includes:
