Kepma Online Tuner
Use the Kepma tuner for instruments and alternate guitar tunings. Set A4 calibration, noise reduction and cent tolerance; read the controls and guide.
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Kepma Online Spectrum Analyzer
A free, open-source spectrum analyzer that runs in your browser — handy for on-site tuning and any situation that calls for spectral analysis. You will need to grant microphone access; it includes noise reduction and doubles as an instrument tuner (with a customisable A4 reference), so you can capture a chosen number of dBA peaks with their frequencies, plus plenty more to explore.
Kepma String Vibration Visualization and Sound Synthesis Tools
Explore string vibration, harmonics and synthesis. Check fretting-force assumptions, kg versus kgf, and illustrative filters versus measured damping.
How Tuning-Peg Rotation Relates to Pitch Change
Explore pitch changes from tuning-peg rotation with an interactive string model. Compare tension and cents, and learn how friction affects real tuning.
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A Virtual Tour of Kepma Guitars
Follow the camera inside Kepma Guitars and see how every guitar comes to life.