The Phonetic Analysis plugin provides token filters which convert tokens to their phonetic representation using Soundex, Metaphone, and a variety of other algorithms.
This plugin can be installed using the plugin manager:
sudo bin/elasticsearch-plugin install analysis-phonetic
The plugin must be installed on every node in the cluster, and each node must be restarted after installation.
This plugin can be downloaded for offline install from https://artifacts.elastic.co/downloads/elasticsearch-plugins/analysis-phonetic/analysis-phonetic-6.6.1.zip.
The plugin can be removed with the following command:
sudo bin/elasticsearch-plugin remove analysis-phonetic
The node must be stopped before removing the plugin.