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 FileMaker Pro Custom Functions

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SoundexSimple ( text )

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  Average rating: 4.1  (39 votes)
  Discuss this Custom Function

ursus, leosoft

Create Soundex code

Sample Input:
SoundexSimple ( "UrsusKirk" )
Sample Output:

 Then copy & paste into FileMaker Advanced's Edit Custom Function window.

Click here to copy To Clip Manager if you have myFMbutler's Clip Manager installed


With genealogy there are a couple systems to quickly compare two names. Here is the algorithm for the SimpleSoundex. This is the more common one.

Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it


I tested this function, and it works well. I note that the output seems to be limited to a string of 4 characters - 1 Letter plus 3 digits. But a code of that length does not distinguish between certain names, eg:

Manfred = M516, and
Manfredjen = M516 and
Manfredjensendon = M516.

Is this a limitation of the algorithm or this particular implementation?



Tom, Denver
April 04, 2012 2:17pm

Soundex is a phonetic algorithm for indexing names by sound, as pronounced in English. The three names mentioned are sounding somewhat the same, thus generate the same soundex. Try googling the word for more background.

ursus, NL
April 05, 2012 12:30am

Thanks for the tip. I suppose I could have googled that myself & figured it out. The wikipedia ARTIcle also mentioned the Metaphone algorithm. It seems more suitable to my needs. There is an FMP custom function implementing it, also available on this website.

Tom, Denver
April 07, 2012 10:45am

Make a comment about this Custom Function (please try to keep it brief & to the point). Anyone can post:

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Answer 4 + 9 =
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