Heartbeat sound effects

Baby: girl, 14 weeks old, having fun

2714 611

Heart rate monitor: unstable signal

3700 1137

Horror: double heart strike (fast)

3880 1083

Horror: double heart beat (slow)

4288 1012

Boy, 18 weeks

3929 1142

Boy 18 weeks whimpering

3578 931

Boy 18 weeks, hysterical crying

3325 970