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Table 2 Quantitative comparisons of murmur frequency resolution as presented on Fig. 2B

From: Heart energy signature spectrogram for cardiovascular diagnosis

  Murmur S1 S2
  HES STFT HES STFT HES STFT
Half-bandwidth HB, Hz 20 101 36 80 28 84
Low frequency LF, Hz 80 0 32 0 48 0
High frequency HF, Hz 120 201 104 161 105 169