Palm Friction Lab

Palm Friction Lab is a palm friction sound workbench. After rubbing your hands into the microphone and recording, the application will locally read the waveform, calculate the spectral curve, and provide acoustic readings such as roughness index, smoothness index, and high-frequency howling balance to compare the sound texture of the same rubbing under different techniques and room background noise.
You can add tags, room notes, and palm status files to each sample, compare two spectral curves, view the trend of roughness/smoothness index over time, and mark the frequency bands of interest on the spectrum. The application only describes sound and does not provide any medical or health advice.
Suitable for people who want to carefully record palm friction sounds and compare different sampling conditions.