ktmicro-tools - KT02H20 USB Audio DSP tools

Python tools for the KTMicro KT02H20 USB Audio DSP chip for dongles like JCALLY JM12 reverse-engineered from KT_USB_APP.exe protocol.

TUI demo:

Features

• ktmicro.py - CLI for the full DSP register set: volume (PGA + digital gains), 5-band PEQ per channel (ADC/DAC), NoiseGate, Limiter, state dump, register read/write
• ktmicro_tui.py - interactive curses TUI with live biquad frequency response graph (--demo mode works without hardware)
• kt02h20.py - device driver class with semantic get/set for every parameter
• kt02h20_boot.py - bootloader firmware flasher (HID feature reports)
• hid_transport.py - low-level HID transport (Linux /dev/hidraw)

Requires Python 3 and hidapi (pip install hidapi). Linux only.

Quick start

# Read full DSP state
python3 ktmicro.py state

# Read / set EQ band
python3 ktmicro.py eq adc --set 0 --freq 1000 --gain +3.0 --q 1.0

# Toggle NoiseGate
python3 ktmicro.py ng --set en 0

# Interactive TUI
python3 ktmicro_tui.py 

Tests

python3 -m unittest test_ktmicro -v

See ../KT_USB_PROTOCOL.md for the complete register map and protocol documentation.