While trying to have it speak, I get the following exception:
ClusterUnitDatabase: can't find tree for pau_0
Trouble while processing utterance java.lang.ClassCastException: java.util.HashSet
java.lang.ClassCastException: java.util.HashSet
at org.alchar.jtts.clunits.ClusterUnitSelector$Viterbi.getCandidate(ClusterUnitSelector.java:527)
at org.alchar.jtts.clunits.ClusterUnitSelector$Viterbi.decode(ClusterUnitSelector.java:364)
at org.alchar.jtts.clunits.ClusterUnitSelector.processUtterance(ClusterUnitSelector.java:130)
at org.alchar.jtts.Voice.runProcessor(Voice.java:570)
at org.alchar.jtts.Voice.processUtterance(Voice.java:417)
at org.alchar.jtts.Voice.speak(Voice.java:304)
at org.alchar.jtts.Voice.speak(Voice.java:255)
at org.alchar.jtts.TTS.textToSpeech(TTS.java:249)
at org.alchar.jtts.TTS.batchTextToSpeech(TTS.java:262)
at org.alchar.jtts.TTS.main(TTS.java:558)