Meta Hearing Technology
Optional module of the KLIPPEL QC SYSTEM
Meta-Hearing-Technology provides the highest sensitivity for Rub & Buzz, loose particles and other irregular defects. It improves the sensitive Rub&Buzz detection of the QC standard version. An adaptive model measures the loudspeaker nonlinearities and synthesizes the regular distortion as produced by good units. The active compensation of regular distortion in the measured signal reveals the symptoms of loudspeaker defects more clearly even if they are not audible and completely masked by regular distortion.
For example, a loose particle produces an inaudible click at a stimulus frequency of 120 Hz which is completely masked by the regular distortion generated by the motor and suspension nonlinearity. Those defects can be detected by the Meta-Hearing-Technology before becoming audible in the final application.
