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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 5    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 5,May 2012
Respiratory Sound Analysis using MATLAB
Full Text(PDF, )  PP.1222-1225  
Pankaj B. Gadge, Bipin D. Mokal, Uttam R. Bagal
Respiratory sound disorder, Heart sound signal, Respiratory sound signal
Bronchitis, pneumonia and many other pulmonary diseases cause respiratory disorders. The respiratory sound signal can be processed by using several techniques for diagnostic information. Computerized analysis of respiratory sound can facilitates the detection of changes in respiratory sound & storing the record of the measurement made from patient. This may help for diagnosis of respiratory disorders and treatment for a patient suffering from various respiratory diseases. Most of the respiratory sound energy is concentrate below 200 Hz. Respiratory sound frequencies overlaps heart sound frequencies. Suppression of heart sound was done by using frequency domain and adaptive signal filtering method. The respiratory sound signals are classified based on peak energy of signal in 40Hz – 160Hz
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