Heartbeat sound effects

Baby: girl, 14 weeks old, having fun

2545 609

Heart rate monitor: unstable signal

3501 1135

Horror: double heart strike (fast)

3692 1076

Horror: double heart beat (slow)

4070 1007

Boy, 18 weeks

3741 1141

Boy 18 weeks whimpering

3370 929

Boy 18 weeks, hysterical crying

3109 969