Sound Builder Blaufuss Sound Builder

We apologize for the trouble you are having with our Sound Builder app.  Unfortunately, iOS 8 broke our app.  After several major updates of iOS (e.g., 5, 6, and 7), the latest software update from Apple changes the way Core Audio works, which makes the audio files play improperly in our app.

Because of these problems, and because we have no way of contacting our customers directly, we had to remove our app from the App Store.

We are working on a fix, and hope to upload an updated app to the App Store soon.

This issue is as frustrating for us as it is for you.

Please be patient as we work on a new version.


 requires Flash player; click to download    Heart Sounds Tutorial:
     This online program focuses on the four common valvar lesions in the left heart: aortic regurgitation, aortic stenosis, mitral regurgitation, and mitral stenosis. Actual patients illustrate the physical findings associated valvar disease. You can listen to the patient's heart at several listening locations, while at the same time you can see video of pulsations in the neck, precordium, or extremities. The findings are explained with text, as well as illustrated with phonocardiograms, hemodynamic data, and computer animations.
 requires Flash player; click to download    Heart Sounds Quiz:
     This interactive quiz will test your ability to identify correctly the first and second heart sounds, extra sounds, diastolic and systolic murmurs in recordings of actual patients, using a computer animation of the carotid pulse for timing.
 requires Flash player; click to download    High- and low-frequency sounds illustrated:
     This brief program demonstrates the difference between events that cause low frequency sounds (e.g., a third heart sound) and events that cause high frequency sounds (e.g., an ejection click). .

 requires Shockwave player; click to download    ECGviewer:
     This online program allows analysis of 12-lead ECGs with calipers, plumb line, and interactive ladder diagram.
Interpretations for the example ECGs can be found here., with a detailed explanation here (6MB PDF).
 requires Shockwave player; click to download    Frontal Axis Tutorial:
     This program demonstrates changes in the frontal surface leads with shifts in the cardiac axis.
 requires Shockwave player; click to download    SVT Tutorial:
     This online program uses computer animations to explain.arrhythmia mechanisms and their associated electrocardiographic findings for the following examples: AV node reentry, AV reentry, atrial tachycardia, atrial flutter, and atrial fibrillation.