Phonocardiography and auscultation are noninvasive, low-cost and accurate methods for assessing heart disease. However, diagnosis by auscultation requires great experience and there is considerable inter-observer variation. The primary aim of this book is to present objective signal processing tools able to extract information from the phonocardiographic (PCG) signal. The PCG signal is traditionally analyzed and characterized by morphological properties in the time domain, by spectral properties in the frequency domain or by nonstationary properties in a joint time-frequency domain. Besides...