This technique performs harmonic analysis of the nonspeech audio signals and then the resulted attributes including time-varying amplitude and frequency functions are piecewisely linearized.

Threshold rattling speed not only depends upon the frequency and amplitude of the errors of a gear pair, but also time-varying meshing stiffness and their combination frequency.

The larger the variation of amplitude and frequency of time-varying feed rate, the better the effect of suppressing chatter under some conditions.