Application of MIDI technique for medical audio signal coding

Proposes applying MIDI technology to the coding of physiological sounds, such as heart sounds or lung sounds, used in medical diagnosis for constructing medical audio databases. We have implemented our proposed method and checked its processing speed, the storage size of the encoded data and the quality of the decoded sound. Although our proposed encoding method cannot reproduce the perfect original wave pattern, we confirmed that diagnosing points in source sounds are not degraded by our proposed method. In this paper, we describe our proposed encoding and decoding algorithms, and we present several specific coding examples of both heart and lung sounds on typical clinical cases