Snicko, short for Snickometer, is a technological system used in cricket to help umpires determine if a batsman has edged the ball with their bat before being caught or given out leg before wicket (LBW).
Here's a breakdown of how Snicko works:
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Purpose: Its primary goal is to detect faint edges or deflections of the ball off the bat, which are often too subtle for the human eye or ear to perceive reliably.
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Mechanism: Snicko combines slow-motion video footage with a highly sensitive microphone placed close to the stumps. This microphone picks up the sound of the ball potentially hitting the bat.
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Analysis: The audio signal is then synchronized with the slow-motion video. If a spike appears on the audio waveform at the precise moment the ball passes the bat, it suggests a possible edge. The higher the spike, the more likely a significant contact.
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Umpire Review: The third umpire (television umpire) reviews the Snicko data along with the video footage to make a more informed decision about whether the batsman edged the ball. This helps reduce errors and ensure fairer decisions.
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Limitations: While Snicko is a useful tool, it's not foolproof. Other noises, such as the bat hitting the ground or the batsman's clothing rubbing against the bat, can sometimes create false spikes on the audio waveform. Therefore, it's used in conjunction with other evidence, like Hot Spot (infrared imaging) and the naked eye, to reach a verdict.
In summary, Snicko is an audio-visual aid that aims to enhance the accuracy of umpiring decisions by detecting subtle edges in cricket.