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                 BioSignetics Corporation
                                                                    Digital Stethoscope Company                             

Our Heart Sounds
Internet Sounds


Real Clinical Heart Sounds Product for Heart Auscultation Training
designed for iPOD, MP3, CD-Player, Computer
Pediatric Heart Sounds and Murmurs, downloadable heart sounds, heart
Sounds Online, Heart sounds tutorial and auscultation assistant.
Collection of MP3 and WAVE Heart Sounds with Cardiologist Audio and
Text Narrations. Questions? Email to

Option1: Follow hyperlink below to Purchase Online using credit card and Google Checkout
Purchase Heart Sounds for Auscultation Training. Also follow this hyperlink to view
pdf file with the manual.

Option2: purchase online using credit card or your Paypal account. If you use credit
card then Paypal handles secure online transaction and no Paypal account is needed.

Press "Buy Now" button below.

Purchase Clinical Heart Sound digital collection and narrations

Option 3:  Send personal check (if from abroad then international draft in US dollars)
Payable to Biosignetics Corporation, 29 Downing Ct, Exeter, New Hampshire, 03833
Phone: 603-303-0708, email your contact information to

Do not hesitate to contact us at info@bsignetics.com if you may need a sample file of
heart sound and narration or have additional questions or requests.  We receive all forms
of payments including personal checks, please include you contact information and email.
Congestive Heart Failure (Rales) Download sample file -- Cardiologist Narration

Congestive Heart Failure (Rales) Download sample file -- Mp3 Sound Track

select link above, press right mouse button, use "save link as" option to download
to your computer

Sound #13. Rales. Congestive Heart Failure (extract from the product manual)

Perhaps students do not see the terminal patient, with atrial fibrillation, rales, and peripheral edema, the picture of congestive heart failure. This is such a patient, an 88 year old who has had coronary bypass surgery. The heart rate is irregular, due to atrial fibrillation. There are many inspiratory rales. The patient is asked to stop breathing, during which time you hear an ejection systolic murmur, distinctly musical in quality, the murmur being of 2/6 intensity. S1 is not audible. This murmur is due to fibrotic change in the aortic valve. Atrial fibrillation is a common arrhythmia in chronic ischemic heart disease.

Customer comments:

-I am a Physician. Paid with PayPal. I have Fellowship Exams soon and need to refresh
my auscultation skills. I was able to download both formats and I have found both the sounds
and commentary very useful. Thanking you.

-Anyway. LOVE the product.

-I gave the wrong email and the problem was solved within a half hour. brilliant. (eBay)

-I have just paid the $30 for the Real Clinical Heart Sounds product for
Auscultation Training and the payment has been approved. However,
I cannot find where to download the files. I am repeatedly redirected
to a site asking for more money.

=> Please make sure that you had provided your valid email and address with your
      payment. Within a day (or faster) you will immediately receive email with secure
      electronic file download instructions. You can also send email confirming
      your purchase to info@bsignetics.com

What will you receive? Twenty seven heart conditions arranged by auscultation
position, each including cardiologist audio narration and a separate heart sound
recording. All recordings are available in both wave binary audio file format
and in MP3 format. You will have access to BOTH formats.
You can use them to burn audio CD ROM or use MP3 player or iPOD in your car
or elsewhere.

Sounds are recorded at all auscultation positions of relevance (apex/mitral;
tricuspid/LSB 4th space; aortic/RSB 2nd space;  pulmonary/LSB 2nd space)
and include:

normal sounds (S1 and S2), aortic ejection click, mitral regurgitation, mitral stenosis,
mitral valve prolapse (single and multiple clicks),
S3 and gallop rhythm, innocent vibratory systolic murmur, complete A_V block,
congestive heart failure, aortic regurgitation, atrial septal defect, patent ductus
arteriosus, pulmonary valve stenosis, innocent systolic flow murmur, venous hum,
bicuspid aortic valve, aortic stenosis, ventricular septal defect (large and small).
All sounds are REAL, recorded and selected by a cardiologist (Douglas L. Roy, MD,
FAHA, Professor of Pediatrics) in a controlled environment, used previously in college
level heart auscultation training (Ears On System). Dr. Roy developed also set of
audio narrations for each recorded sound. Narrations are recorded separately from
sounds, so students can utilize them with sounds or just listen to the sound tracks.

Available in MP3  (iPOD) or WAVE (CD, Windows computer) format.

One can find many heart sounds on the internet -- but most of them are of
bad quality, by saying that we mean that they are:

-NOT REAL (were simulated by computer without preserving essential features of real
patients- specifically heart sound intensity and pitch);
-REAL, but utilize one repetitive heart bit, thus ignoring such an important
property as heart sound intensity variation with respiration;
-REAL, but heavily filtered, eliminating important frequency ranges, thus reducing
or eliminating very important properties.
-bad quality recordings without clinically confirmed diagnosis.

If you are to learn heart auscultation -- then use REAL sounds from a REAL clinical

Recent research indicated that "repetitive listening" using iPOD, MP3 player
or CD ROM (for example on the way to work) can improve auscultation skills by a three
. However, it is important to utilize REAL heart sounds when you learn heart
In the American Journal of Medicine study, Dr. Barrett and colleagues reported on a controlled trial in which 80 third-year medical students listened to an average of 500 repetitions each of six abnormal heart sounds: aortic stenosis, aortic regurgitation, mitral regurgitation, mitral stenosis and S3 and S4 gallops. They gave the students digital sound files that had been burned onto CDs, but later learned that most of the students were converting them to MP3 files so that they could listen to them on their iPods or comparable players. Controls did not receive the CD, but all participants performed cardiac auscultation on their patients as part of their routine clinical rotations, and all were tested within 30 days of completing the exercise by listening 10 heart sounds played for 20 seconds each. The authors found that the digital files improved the students' proficiency at recognizing the sounds from a mean of 38.6% + 22.1% at baseline (as measured by a pre-test) to 88.9% + 16.0% after listing to the CD an average of 2.5 times.

List of Complete collection (available in both mp3 and wave format)

All Materials and Images are subject to the Copyright.
Copyright: 2004-2009 BioSignetics Corporation
Last modified: 02/02/09