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Table 7 Comparison of the percentage results obtained with the STFT and with the FT

From: Signal processing of heart signals for the quantification of non-deterministic events

Signal used % of non-deterministic energy
  Fourier Transform Short-Time Fourier Transform
Pre-recorded PCG 1 35.18% 36.11%
Pre-recorded PCG 2 6.82% 6.87%
Pre-recorded PCG 3 47.81% 46.81%
Karim stethoscope signal 1 48.40% 45.17%