Snickometer
Cricket stadiums are a noisy place where hearing the sound sublime edges can be near impossible. Umpires these days, however, use Snickometer. This technology is programmed to recognize the slightest of change in sound waves to pick out if the batsman had edged the ball.
The Snickometer uses a sensitive microphone placed on one of the stumps at both ends of the pitch and is connected to an oscilloscope that measures sound waves. The oscilloscope shows the sound picked up by the microphone as a sound wave and in conjunction with a camera, you can see if there was a change in the sound wave when the ball passed the bat or pads.
