onsets.py 文件源码

def process(self, X):
        onset_func = zscore(self.func(X))
        onset_func = signal.filtfilt(self.moving_avg_filter, 1, onset_func)
        onset_func = onset_func - signal.medfilt(
            onset_func[:,np.newaxis], self.median_kernel
        )[:,0]
        peaks = signal.argrelmax(onset_func)
        onsets = peaks[0][np.where(onset_func[peaks[0]] >
            self.threshold)]
        return onsets