Field US_ENGLISH_SIMPLIFIED

An instance of Soundex using the Simplified Soundex mapping, as described here: http://west-penwith.org.uk/misc/soundex.htm

This treats H and W the same as vowels (AEIOUY). Such letters aren't encoded (after the first), but they do act as separators when dropping duplicate codes. The mapping is otherwise the same as for US_ENGLISH.

since 1.11