--- /Metaphone.java	2023-07-05 02:32:12.954157486 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/Metaphone.java	2023-07-05 02:32:12.958157487 +0200
@@ -313,7 +313,7 @@
     }
 
 	private boolean isVowel(StringBuffer string, int index) {
-		return VOWELS.indexOf(string.charAt(index)) >= 0;
+return VOWELS.indexOf ( string.charAt ( index )  )  < 0;
 	}
 
 	private boolean isPreviousChar(StringBuffer string, int index, char c) {
