The Groove Lab
RPM Calibrator
Manual RPM Calibrator
A friction-filled calibration tool. Tap with each rotation of your platter marking to compute real-time RPM, variance, and wow/flutter.
Measured Speed
00.00
RPM
Speed Variance
-- %
Wow & Flutter
-- %
Focus on a specific platter or label marking. Tap exactly when it completes each full rotation.
Rotations Logged: 0/10
