Using the Sound Card as a Timer
arXiv:0908.1437 · doi:10.1119/1.3527753
Abstract
Experiments in mechanics can often be timed by the sounds they produce. In such cases, digital audio recordings provide a simple way of measuring time intervals with an accuracy comparable to that of photogate timers. We illustrate this with an experiment in the physics of sports: to measure the speed of a hard-kicked soccer ball.
arXiv comment3 pages, 4 figures, Latex