elasticsearch. guide

A phonetic token filter that can be configured with different encoder types: metaphone, soundex, caverphone, refined_soundex, double_metaphone (uses commons codec).

The replace parameter (defaults to true) controls if the token processed should be replaced with the encoded one (set it to true), or added (set it to false).

For example:

{
    "index" : {
        "analysis" : {
            "analyzer" : {
                "my_analyzer" : {
                    "tokenizer" : "standard",
                    "filter" : ["standard", "lowercase", "my_metaphone"]
                }
            },
            "filter" : {
                "my_metaphone" : {
                    "type" : "phonetic",
                    "encoder" : "metaphone",
                    "replace" : false
                }
            }
        }
    }
}