Signal Lab
World of VibrationFIELD NOTES / app
See live wave, trail, spectrum, spectrogram, and energy views. Compare peak, RMS, and frequency, freeze the evidence, or record a strange vibration.

Plug the piezo into a microphone/headset input or USB audio adapter. Allow microphone access, pick the correct input, and raise sensitivity or gain slowly.
/apps/audio/vibration-scope/index.html
