Convert usm to spx

  1. Download and install the latest version of Filestar.

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

  3. Type convert to spx in the search box.

  4. Press Convert.

  5. Or let an AI agent do it: filestarcli -i file.usm -c "convert to spx" (how).

Let your AI agent convert USM to SPX

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:

“Convert the USM files in my Downloads folder to SPX”

Or run it yourself:

filestarcli -i file.usm -c "convert to spx"

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 convert USM to SPX?

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

Using Filestar With AI Agents → · Download SKILL.md

What is the difference between .usm and .spx?

Extension
.usm
.spx
Format
Binary
Binary
Category
Video
Audio
Developer
CRI Middleware
Xiph.Org
Description
CRI USM Video is a proprietary video container format developed by CRI Middleware for use in video games. It stores compressed audio and video streams, often using CRI's own codecs, and is commonly used for cutscenes and in-game video playback. It is prevalent in many console and PC games developed in Japan.
Audio file compressed using Speex compression and saved in the Ogg Vorbis container format; designed as an audio compression format specifically for speech; compresses voice at 2 to 44 kbps and supports 8 kHz, 16 kHz, and 32 kHz compression in the same bitstream.
MIME Type
video/usm
audio/ogg

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