Extract as4 stems

Download and install the latest version of Filestar.
Right click on one or more As4 file(s) on your desktop and select Convert with Filestar.
Type extract stems in the search box.
Press Extract.

Or let an AI agent do it: filestarcli -i file.as4 -c "extract stems" (how).

Let your AI agent extract AS4 stems

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

Or add it in one click:

Claude Code:

claude mcp add filestar -- npx -y [email protected] mcp

Then ask your agent:

“Use Filestar to extract AS4 stems in my Downloads folder”

Or run it yourself:

filestarcli -i file.as4 -c "extract stems"

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 extract AS4 stems?

Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.as4 -c "extract stems" on your computer, so your files stay on it.

Using Filestar With AI Agents · Download SKILL.md

What is .as4?

Name: Electronic Arts ASF Audio
Extension: .as4
Format: Binary
Category: Audio
Developer: Electronic Arts
Description: Audio file in Electronic Arts' ASF music format (.asf/.as4), used by EA games of the 1990s; starts with an SCHl, SHEN or 1SNh header and holds ADPCM-compressed game audio and music.
Sample: sample.as4

Extract As4 Stems Today

Get started within minutes

Download