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A new S2 and S3 sounds detection by using heart rate signal taken from dorsalis pedis artery as a reference is presented in this paper. The aimed of this approach is evaluate the accuracy of the S1 and S2 sounds detection by using dorsalis pedis pulse measurement as reference. The dorsalis pedis pulse were measure by using MAX 30100 sensor controlled by microcontroller, meanwhile the heart sounds were capture by using ECG device. The measurement were taken for 5 minutes for totally 10 male and 10 female subject-s age 20 years. This experiments has been conducted for several times and the average were calculated and compared to the existing solution. The proposed approach gives a small error compare to the common S1 and S2 detection, which mean that the proposed detection method is acceptable as a promising solution.