Sound Library is a reference collection contributed by members of the Thinklabs Community, captured on Thinklabs stethoscopes and recorded on iPods, digital recorders or notebook computers.

 

With contributor permission or by request, we add uploaded Sounds to this Sound Library for easy reference. The Library is an evolving resource - bookmark this page for future visits.

If you'd like to contribute sounds- please contact us via the link below. 

 

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For help, email us at community@thinklabsmedical.com.

 

Thinklabs Sound Library

A Normal Heart Sound

Submitted by Thinklabs on Thu, 11/12/2009 - 14:00.
  • Length: 0:20 minutes (388.81 KB)
  • Format: MP3 Stereo 44kHz 160Kbps (CBR)

 

Normal Heart Sound - Normal Heart Sound showing S1 and S2. No audible murmurs.

Contributed by Thinklabs Medical.

Aortic Regurgitation

Submitted by Thinklabs on Mon, 07/14/2008 - 23:07.
  • Length: 0:25 minutes (389.37 KB)
  • Format: MP3 Mono 44kHz 128Kbps (CBR)

 

Aortic Regurgitation - Murmur best heard with patient sitting forward, Stethoscope in bell mode positioned over the second intercostal space to the right of right of the sternal border, or over the 3rd - 4th intercostal space just to the left of the sternal border. Murmur is enhanced during expiration.

 

Note that the aortic component of the second heart sound is soft. The characteristic murmur is an early diastolic murmur. The intensity is loudest at the onset of diastole and becomes softer during diastole - the so-called "decrescendo" murmur.

 

Aortic Regurgitation

 

Contributed by Dr. Darryl A Smith FCP (SA) Cardiology

 

Aortic Regurgitation, Ejection Systolic Murmur

Submitted by Thinklabs on Mon, 07/14/2008 - 22:54.
  • Length: 0:07 minutes (109.14 KB)
  • Format: MP3 Mono 44kHz 128Kbps (CBR)

Aortic Regurgitation with Ejection Systolic Mumur

 

The stethoscope is positioned towards the left sternoclavicular junction. Note in this recording the ejection systolic murmur early in systole. The aortic regurgitant murmur is less prominent in this position. Patients with aortic valvular disease may have concomitant aortic stenosis and aortic regurgitation, or may have isolated aortic regurgitation. This patient had isolated aortic regurgitation.

 

aortic stenosis ejection systolic click

 

The incompetent valve allows blood to re-enter the left ventricle, which results in an increased volume of blood being ejected during the subsequent beat. The increased volume of blood ejected during systole creates an audible ejection systolic murmur.

 

Contributed by Dr. Darryl A Smith FCP (SA) Cardiology

 

Aortic Stenosis

Submitted by Thinklabs_sound... on Tue, 06/24/2008 - 23:04.
  • Length: 0:19 minutes (297.96 KB)
  • Format: MP3 Mono 44kHz 128Kbps (CBR)

Aortic Stenosis, Severe - Systolic Murmur. Harsh blowing sound, crescendo / decrescendo during systole, followed by S2. Recording Note: Diaphragm mode recording 0-14 sec. followed by Bell Mode recording 14-29 sec. with increase in S2 due to greater low frequency sensitivity in Bell mode.



Contributed by Division of Cardiology, Emory University School of Medicine.

Blood Pressure - Korotkoff Sounds 1

Submitted by Thinklabs_sound... on Wed, 06/25/2008 - 02:46.
  • Length: 0:19 minutes (298.5 KB)
  • Format: MP3 Mono 44kHz 128Kbps (CBR)
Korotkoff Sounds - Auscultatory blood pressure measurement showing onset of Korotkoff sounds at systolic pressure, and diminishing sounds as diastolic pressure is reached. Note that last (diastolic) pulse is barely audible but clearly visible.



Contributed by Alice Mayfield, Mechanical & Biomedical Engineering, Carnegie-Mellon University.