Abstract: The invention provides a method of processing at least one heart sound signal, and the method comprises the step of: receiving (11) the at least one heart sound signal, segmenting (12) the heart sound signal into a plurality of segments, identifying (13) attribute information for each segment, annotating (14) each segment with corresponding attribute information, and outputting (15) an annotated Phonocardiogram for the at least one heart sound signal. The invention also provides a processing system for implementing the step of the methods as mentioned above.

Abstract: The invention relates to a method and system for locating a sound source. The system comprises:—a receiving unit (311) for receiving navigating sound signals from at least two navigating sound sensors (21, 22, 23), and receiving a selection instruction comprising a signal segment type corresponding to the sound source, wherein the at least two navigating sound sensors are received in a chest-piece (20),—a selecting unit (312) for selecting a segment from each navigating sound signal according to the signal segment type,—a calculating unit (313) for calculating a difference between the segments selected from the navigating sound signal, and—a generating unit (314) for generating a moving indication signal for guiding moving the chest-piece (20) to the sound source according to the difference.