Physicians routinely listen to lung sounds through stethoscopes during general examinations. Such auscultations are often used as a basis for referral to pulmonologists, who specializes in diagnosis and treatment of lung conditions and diseases. The challenge with referral based on lung auscultations is that perception of sound may be prone to subjectivity, especially for a general physician who does not deal with conditions related to lungs on a daily basis. We present our solution to this challenge