anchor.diff:  
   == Double Metaphone
   
  -To use this encoding in your analyzer, see <<filter-descriptions.adoc#double-metaphone-filter,Double Metaphone Filter>> in the Filter Descriptions section. Alternatively, you may specify `encoding="DoubleMetaphone"` with the <<filter-descriptions.adoc#phonetic-filter,Phonetic Filter>>, but note that the Phonetic Filter version will *not* provide the second ("alternate") encoding that is generated by the Double Metaphone Filter for some tokens.
  +To use this encoding in your analyzer, see <<filter-descriptions.adoc#double-metaphone-filter,Double Metaphone Filter>> in the Filter Descriptions section. Alternatively, you may specify `encoder="DoubleMetaphone"` with the <<filter-descriptions.adoc#phonetic-filter,Phonetic Filter>>, but note that the Phonetic Filter version will *not* provide the second ("alternate") encoding that is generated by the Double Metaphone Filter for some tokens.
   
   Encodes tokens using the double metaphone algorithm by Lawrence Philips. See the original article at http://www.drdobbs.com/the-double-metaphone-search-algorithm/184401251?pgno=2
   
   == Metaphone
   
  -To use this encoding in your analyzer, specify `encoding="Metaphone"` with the <<filter-descriptions.adoc#phonetic-filter,Phonetic Filter>>.
  +To use this encoding in your analyzer, specify `encoder="Metaphone"` with the <<filter-descriptions.adoc#phonetic-filter,Phonetic Filter>>.
   
   Encodes tokens using the Metaphone algorithm by Lawrence Philips, described in "Hanging on the Metaphone" in Computer Language, Dec. 1990.
   
  
positive.code: 
  == Caverphone
  
  To use this encoding in your analyzer, specify `encoding="Caverphone"` with the <<filter-descriptions.adoc#phonetic-filter,Phonetic Filter>>.
  
  Caverphone is an algorithm created by the Caversham Project at the University of Otago. The algorithm is optimised for accents present in the southern part of the city of Dunedin, New Zealand.
  
  
negative.code: 
  == Kölner Phonetik a.k.a. Cologne Phonetic
  
  To use this encoding in your analyzer, specify `encoder="ColognePhonetic"` with the <<filter-descriptions.adoc#phonetic-filter,Phonetic Filter>>.
  
  The Kölner Phonetik, an algorithm published by Hans Joachim Postel in 1969, is optimized for the German language.
  
  