Figures & data
Figure 1 Phantom container system.
![Figure 1 Phantom container system.](/cms/asset/e9abd809-916c-4ea5-b098-4b0fd2f44576/dmde_a_186076_f0001_c.jpg)
Figure 2 Experimental setup.
![Figure 2 Experimental setup.](/cms/asset/0ec6457a-3dba-43d6-9dfe-5825d8722cca/dmde_a_186076_f0002_c.jpg)
Table 1 Stethoscope models evaluated
Figure 3 Frequency responses for each stethoscope.
![Figure 3 Frequency responses for each stethoscope.](/cms/asset/81d28fdd-38c5-482d-9e04-3f29f291ceba/dmde_a_186076_f0003_c.jpg)
Table 2 Clinically relevant frequency ranges
Figure 4 AMB rejection.
Abbreviations: AMB, ambient noise; L, left; R, right.
![Figure 4 AMB rejection.](/cms/asset/003fbb6d-91f0-4bb7-87f5-46bd6bb97040/dmde_a_186076_f0004_c.jpg)
Figure 5 Sensitivity to GI sounds.
Abbreviations: GI, gastrointestinal; LUFS, Loudness Units relative to digital Full Scale.
![Figure 5 Sensitivity to GI sounds.](/cms/asset/0e214973-6c0f-4406-934d-3ac03c1ed80a/dmde_a_186076_f0005_c.jpg)
Figure 6 Noise rejection of GI sounds.
Abbreviations: GI, gastrointestinal; LUFS, Loudness Units relative to digital Full Scale.
![Figure 6 Noise rejection of GI sounds.](/cms/asset/408c4e4e-474d-459e-afae-b46cadf38c1a/dmde_a_186076_f0006_c.jpg)
Figure 7 Sensitivity to cardiac sounds 22–281 Hz.
Abbreviation: LUFS, Loudness Units relative to digital Full Scale.
![Figure 7 Sensitivity to cardiac sounds 22–281 Hz.](/cms/asset/bad03bcb-0fb3-4fb5-97ba-fecc6169d7e6/dmde_a_186076_f0007_c.jpg)
Figure 8 Noise rejection of cardiac sounds 22–281 Hz.
Abbreviations: LUFS, Loudness Units relative to digital Full Scale; MS, mitral stenosis.
![Figure 8 Noise rejection of cardiac sounds 22–281 Hz.](/cms/asset/e05c474f-9388-491f-86c5-ebbe555f4bff/dmde_a_186076_f0008_c.jpg)
Figure 9 Sensitivity to cardiac murmur sounds 205–775 Hz.
Abbreviation: LUFS, Loudness Units relative to digital Full Scale.
![Figure 9 Sensitivity to cardiac murmur sounds 205–775 Hz.](/cms/asset/9e6d6526-6d1b-4702-9c1c-d91a9bf1fc71/dmde_a_186076_f0009_c.jpg)
Figure 10 Noise rejection of cardiac sounds 205–775 Hz.
Abbreviations: AS, aortic stenosis; ASD, atrial septal defect; LUFS, Loudness Units relative to digital Full Scale; PS, pulmonic stenosis; VSD, ventricular septal defect.
![Figure 10 Noise rejection of cardiac sounds 205–775 Hz.](/cms/asset/090c0303-645b-41dd-85a3-175f987e399a/dmde_a_186076_f0010_c.jpg)