fx-mic-tool

EP-2350 config.json pack toolkit with a validator, deploy script and browser editor

fx-mic-tool repository on GitHub
fx-mic-tool on GitHub.© oxo-yuta
Works with
  • Remove the bottom cover and connect the EP-2350 over USB-C before transferring a pack
  • Documentation in Japanese
Good to know
  • Heads up: A syntax error in config.json stops the unit from starting, so run the validator first. Holding the white and grey buttons while powering on recovers it.

About

A toolkit for customizing the EP-2350 FX mic with config.json presets and sample WAVs. You copy a template pack, edit its config.json against the included reference, check it with a validator before transferring, then deploy it to the device with a script. There is also a browser editor with a live audio preview.

Devices
Pricing
free — Public source on GitHub; no license stated
By
oxo-yuta
Last verified
Oct 18, 2026
Source: GitHub