Murmur detection using matlab

i m designing a matlab code for detection of heart murmurs...
i applied segmentation using wavelet decomposition and reconstruction
now i m doing peak detection

can somebody help me how to do peak detection in matlab
can somebody help me by giving tne matlab code for peakdetection of heart murmur ? i'm not asking about ECG. i have calculated my average shannon energy envelope and need to detect heart sounds s1 and s2 by peak detection. pls help me . its urgent
Maam Madiha,

Can you please send me the code you have write in matlab, i urgently need that.

Thanks and Regards,

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