The amplitude and frequency of a sound wave can be examined using a microphone and oscilloscope. By measuring the speed of sound we can apply the wave equation to determine its wavelength.

An oscilloscope makes the invisible world of ... would have paid thousands for a decade ago. Want to see sound waves from a microphone? Watch digital signals move between chips?

The sound waves that smashed the glasses travel through ... Teachers might then use an oscilloscope and a signal generator to illustrate this through sine waves, and pupils could investigate ...

Using the inputs on a computer’s sound card is an old trick to fake a very simplistic, AC coupled, slow oscilloscope. You can get DC operation by desoldering a couple capacitors, but if the ...