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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