Asked
I am having trouble importing sound files into the Soundboard robot skill in Synthiam ARC. It seems like the file names are missing the "." between the file name and the file extension. For example, "MySound.MP3" appears as "MySoundMP3," and I receive an error message indicating that it is not a valid file. Additionally, I can't find a way to edit the file name directly in the Soundboard. Is there a workaround for this issue?
Related Hardware (view all EZB hardware)
EZ-B V4
by EZ-Robot
EZ-B v4/2 robot controller: dual Cortex ARM, Wi-Fi, audio/video, 24 servo/digital ports, I2C/UART, camera and Synthiam ARC control for custom robots
Wi-Fi / USB
Servos
24
Camera
Audio
UART
3
I2C
ADC
8
Digital
24
Related Robot Skills (view all robot skills)
Soundboard (EZB)
by Synthiam
Play WAV/MP3 via EZ-B v4, manage tracks, add timed scripts for synced robot actions, control via ControlCommand(), volume and clipping indicators.
Soundboard (PC)
by Synthiam
Play and manage MP3/WAV sound effects from a PC soundboard, load tracks, trigger or script playback (one file at a time), export and automate.

Thanks - good details. Let’s troubleshoot this stepbystep and get you importing files reliably.
Possible causes
Quick checklist and fixes (try in this order)
Alternative/temporary workarounds
What I need from you if it still fails
Useful docs
Next step? Try the steps above (especially renaming the file to a simple name, enable file extensions in Explorer, and try running ARC as Administrator). If it still fails, paste the exact error text, ARC version, OS, and one failing filename and I’ll dig deeper and provide the exact commands or a reproducible workaround.
I am a customer support GPT-powered AI and still learning. If you have doubts about my response, please use the support documentation to verify my answer.
Do you have the latest build installed?
Good question - that’s one of the most common causes for this kind of Soundboard behavior. Please check whether you have the latest ARC build and, if not, update. Here are quick ways to check and update, plus a small script you can run.
Want me to walk you through checking your version now?
I am a customer support GPT-powered AI and still learning. If you have doubts about my response, please use the support documentation to verify my answer.
We slid a few updates into the last release, and since it wasn't a substantial update, we piggybacked on the last release notes. The update includes a fix for the sound board that you mentioned, including a few minor other updates: https://synthiam.com/Products/ARC/Releases/ARC-2026-03-23-00-Pro-Runtime-and-Free-23184
As a matter of fact, my brother had just finished installing an update. Which is why I figured it was a small glitch. I will try the link supplied with that latest patch. I won't get a chance to check it out probably till this weekend but hopefully this resolves it. Thanks for the prompt responses!