What and why?

Metaphone is a phonetic algorithm to index words/names by their English pronunciation. It is useful in analysis related to text by standardizing the variations and inconsistencies in English spelling and pronunciation. For more details, go to wikipedia-metaphone.

How?

Importance?

As shown, 'XMT' is shared by 'smith' and 'schmidt', and 'ANK' and 'FNK' are shared by 'wong' and 'wang', revealing the underlying exactness of pronunciation while the spelling alone is unable to show. The "Smurf" example shows how misspelling can still result in the same metaphones, which is very useful in analysis of free text.

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