心律失常是一种常见的内科疾病，会对患者的生活及健康造成严重影响。当心律失常发生时，心房和心室收缩程序改变，能使心排血量下降30 左右，从而使血液循环失常。因此，对心律失常进行早期诊断具有重要的临床意义,而利用心音信号识别算法可以快速识别心律失常的病例,有助于提高诊断速度。

-Arrhythmia is a common medical diseases, can cause serious influence to the patient s life and health. When cardiac arrhythmias occur, atrial and ventricular systolic program change, can make the cardiac output fell by around 30 , which makes the circulation of the blood disorder. Early diagnosis of arrhythmia, therefore, has important clinical significance, and the use of heart sounds signal recognition algorithm can quickly identify arrhythmia cases, helps to improve the diagnosis speed.