Table 3.

Summary of the data representations used in the tremor detector.

Data Representation	Number of Features	Description of the Features
FFT	64	Symmetric part of FFT obtained from the Euclidean Norm.
MFCCs [49,56]	36 (12 × 3 channels)	Mel frequency cepstral coefficients adapted toinertial signals.
Hssayeni et al. [15]	39	Power in bands (4–6 Hz and 0.5–15 Hz), autocorrelation features, spectral entropy, first and second dominant frequencies and magnitudes, cross-correlations between pairs of the axis.
Mahadevan et al. [55]	64 (8 × 8 preprocessed signals)	RMS, signal range, signal entropy, dominant frequency and magnitude, the ratio of the dominant frequency band to total energy, spectral flatness, spectral entropy.
Raw signal	384 (128 × 3 channels)	The raw triaxial signal obtained for the accelerometer.