The phonetic text (soundex) functions allow you to compute the soundex encoding of a given string. There is also a procedure to compare how similar two strings sound under the soundex algorithm. All soundex procedures by default assume the used language is US English.

// will return 'H436'
RETURN apoc.text.phonetic('Hello, dear User!')

// will return '4'  (very similar)
RETURn apoc.text.phoneticDelta('Hello Mr Rabbit', 'Hello Mr Ribbit')