It's also the same deal as the "wagon wheel" effect in video. At 30fps, a wheel ...

TylerE on Feb 26, 2013 | parent | context | favorite | on: Digital audio signals and how they really behave [...

It's also the same deal as the "wagon wheel" effect in video. At 30fps, a wheel rotating at 1800rpm (30rps) will appear to be standing still, and one's at, say, 2400rpm and 600rpm will appear to be rotating at the same speed.