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Add FFV1 (Lossless Video) sound

  1. Download and install the latest version of Filestar.

  2. Right click on one or more Mkv file(s) on your desktop and select Convert with Filestar.

  3. Type add sound in the search box.

  4. Press Run.

  5. Or let an AI agent do it: filestarcli -i file.mkv -c "add sound" (how).

Let your AI agent add FFV1 (Lossless Video) sound

Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.

Install Filestar and add it to your agents:

npm install -g filestar
filestarcli agent install

Then ask your agent:

“Use Filestar to add FFV1 (Lossless Video) sound in my Downloads folder”

Or run it yourself:

filestarcli -i file.mkv -c "add sound"

Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.

Can my AI agent add FFV1 (Lossless Video) sound?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.mkv -c "add sound" on your computer, so your files stay on it.

Using Filestar With AI Agents →

Add FFV1 (Lossless Video) Sound Today

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