Evaluating Ideal Conditions in Heart Sound Cancellation Studies

This conclusion highlights that existing studies on heart sound cancellation relied on data collected under ideal conditions, such as quiet environments and known cardiac and respiratory states, primarily involving healthy subjects. It points out a significant limitation—these studies did not consider the influence of other heart sounds, which may affect the accuracy and applicability of their findings. This underlines the need for more comprehensive research that includes a broader range of subjects and real-world conditions.