Transcriber demo Hub4 NullPointerException

[asr888]

Well, I was able to get my transcriber demo working with wsj and hellongram.trigram.lm but after running through some larger audio files I realized I need a larger vocabulary. So I decided to try HUB4 and it will load the program and then go through all the dictionary missing words errrors and that is where trouble strikes. After the warinings I for some reason get a NullPointerException error and I do not know why it is being produced. Here is my error message and config file.

I used this to run the program:

>java -jar -mx512m bin/transcriber.jar C:\sphinx\sphinx4-1.0beta\tests\result\lattice\left.wav

ERROR MESSAGE:

Exception in thread "main" java.lang.NullPointerException
at edu.cmu.sphinx.linguist.util.HMMPool.buildID(HMMPool.java:241)
at edu.cmu.sphinx.linguist.lextree.HMMTree.getHMM(HMMTree.java:323)
at edu.cmu.sphinx.linguist.lextree.HMMTree.addPronunciation(HMMTree.java:289)
at edu.cmu.sphinx.linguist.lextree.HMMTree.addWord(HMMTree.java:259)
at edu.cmu.sphinx.linguist.lextree.HMMTree.addWords(HMMTree.java:245)
at edu.cmu.sphinx.linguist.lextree.HMMTree.compile(HMMTree.java:164)
at edu.cmu.sphinx.linguist.lextree.HMMTree.<init>(HMMTree.java:79)
at edu.cmu.sphinx.linguist.lextree.LexTreeLinguist.compileGrammar(LexTreeLinguist.java:478)
at edu.cmu.sphinx.linguist.lextree.LexTreeLinguist.allocate(LexTreeLinguist.java:406)
at edu.cmu.sphinx.decoder.search.SimpleBreadthFirstSearchManager.allocate(SimpleBreadthFirstSearchManager.java:602)
at edu.cmu.sphinx.decoder.Decoder.allocate(Decoder.java:109)
at edu.cmu.sphinx.recognizer.Recognizer.allocate(Recognizer.java:182)
at demo.sphinx.transcriber.Transcriber.main(Transcriber.java:55)

CONFIG FILE:

<?xml version="1.0" encoding="UTF-8"?>

<!--
Sphinx-4 Configuration file
-->

<!-- ******** -->
<!-- an4 configuration file -->
<!-- ******** -->

<config>

<!-- ******************************************************** -->
<!-- frequently tuned properties                              -->
<!-- ******************************************************** -->

<property name="logLevel" value="WARNING"/>

<property name="absoluteBeamWidth"  value="-1"/>
<property name="relativeBeamWidth"  value="1E-80"/>
<property name="wordInsertionProbability" value="1E-36"/>
<property name="languageWeight"     value="8"/>
<property name="silenceInsertionProbability" value=".1"/>

<property name="frontend" value="epFrontEnd"/>
<property name="recognizer" value="recognizer"/>
<property name="showCreations" value="true"/>

<!-- ******************************************************** -->
<!-- word recognizer configuration                            -->
<!-- ******************************************************** -->

<component name="recognizer" type="edu.cmu.sphinx.recognizer.Recognizer">
    <property name="decoder" value="decoder"/>
    <propertylist name="monitors">
        <item>accuracyTracker </item>
        <item>speedTracker </item>
        <item>memoryTracker </item>
    </propertylist>

</component>

<!-- ******************************************************** -->
<!-- The Decoder   configuration                              -->
<!-- ******************************************************** -->

<component name="decoder" type="edu.cmu.sphinx.decoder.Decoder">
    <property name="searchManager" value="searchManager"/>
</component>

<component name="searchManager" 
    type="edu.cmu.sphinx.decoder.search.SimpleBreadthFirstSearchManager">
    <property name="logMath" value="logMath"/>
    <property name="linguist" value="lexTreeLinguist"/>
    <property name="pruner" value="trivialPruner"/>
    <property name="scorer" value="threadedScorer"/>
    <property name="activeListFactory" value="activeList"/>
</component>

<component name="activeList" 
         type="edu.cmu.sphinx.decoder.search.PartitionActiveListFactory">
    <property name="logMath" value="logMath"/>
    <property name="absoluteBeamWidth" value="${absoluteBeamWidth}"/>
    <property name="relativeBeamWidth" value="${relativeBeamWidth}"/>
</component>

<component name="trivialPruner" 
            type="edu.cmu.sphinx.decoder.pruner.SimplePruner"/>

<component name="threadedScorer" 
            type="edu.cmu.sphinx.decoder.scorer.ThreadedAcousticScorer">
    <property name="frontend" value="${frontend}"/>
    <property name="isCpuRelative" value="true"/>
    <property name="numThreads" value="0"/>
    <property name="minScoreablesPerThread" value="10"/>
    <property name="scoreablesKeepFeature" value="true"/>
</component>

<!-- ******** -->
<!-- The linguist configuration -->
<!-- ******** -->

<component name="lexTreeLinguist" 
            type="edu.cmu.sphinx.linguist.lextree.LexTreeLinguist">
    <property name="logMath" value="logMath"/>
    <property name="acousticModel" value="hub4"/>
    <property name="languageModel" value="trigramModel"/>
    <property name="dictionary" value="dictionary"/>
    <property name="addFillerWords" value="true"/>
    <property name="fillerInsertionProbability" value="1E-10"/>
    <property name="generateUnitStates" value="false"/>
    <property name="wantUnigramSmear" value="true"/>
    <property name="unigramSmearWeight" value="1"/>
    <property name="wordInsertionProbability" 
            value="${wordInsertionProbability}"/>
    <property name="silenceInsertionProbability" 
            value="${silenceInsertionProbability}"/>
    <property name="languageWeight" value="${languageWeight}"/>
    <property name="unitManager" value="unitManager"/>
</component>

<!-- ******************************************************** -->
<!-- The Dictionary configuration                            -->
<!-- ******************************************************** -->

<component name="dictionary" 
    type="edu.cmu.sphinx.linguist.dictionary.FastDictionary">
    <property name="dictionaryPath" 
 value="resource:/edu.cmu.sphinx.model.acoustic.HUB4_8gau_13dCep_16k_40mel_133Hz_6855Hz.Model!/edu/cmu/sphinx/model/acoustic/HUB4_8gau_13dCep_16k_40mel_133Hz_6855Hz/dict/cmudict.0.6d"/>
    <property name="fillerPath" 
 value="resource:/edu.cmu.sphinx.model.acoustic.HUB4_8gau_13dCep_16k_40mel_133Hz_6855Hz.Model!/edu/cmu/sphinx/model/acoustic/HUB4_8gau_13dCep_16k_40mel_133Hz_6855Hz/dict/fillerdict"/>
    <property name="addSilEndingPronunciation" value="false"/>
  <property name="wordReplacement" value="<sil>"/>  
<property name="allowMissingWords" value="true"/>
    <property name="unitManager" value="unitManager"/>
</component>

<!-- ******************************************************** -->
<!-- The Language Model configuration                         -->
<!-- ******************************************************** -->

<component name="trigramModel"
type="edu.cmu.sphinx.linguist.language.ngram.large.LargeTrigramModel">
<property name="unigramWeight" value=".5"/>
<property name="maxDepth" value="3"/>
<property name="logMath" value="logMath"/>
<property name="dictionary" value="dictionary"/>
<property name="location"
value="/sphinx/sphinx4-1.0beta/language_model.arpaformat.DMP"/>
</component>

<!-- ******************************************************** -->
<!-- The acoustic model configuration                         -->
<!-- ******************************************************** -->
<component name="hub4" 
  type="edu.cmu.sphinx.model.acoustic.HUB4_8gau_13dCep_16k_40mel_133Hz_6855Hz.Model">
    <property name="loader" value="sphinx3Loader"/>
    <property name="unitManager" value="unitManager"/>
</component>

<component name="sphinx3Loader" type="edu.cmu.sphinx.model.acoustic.HUB4_8gau_13dCep_16k_40mel_133Hz_6855Hz.ModelLoader">
    <property name="logMath" value="logMath"/>
    <property name="unitManager" value="unitManager"/>
</component>

<!-- ******************************************************** -->
<!-- The unit manager configuration                           -->
<!-- ******************************************************** -->

<component name="unitManager" 
    type="edu.cmu.sphinx.linguist.acoustic.UnitManager"/>

<!-- ******************************************************** -->
<!-- The live frontend configuration                          -->
<!-- ******************************************************** -->
<component name="epFrontEnd" type="edu.cmu.sphinx.frontend.FrontEnd">
    <propertylist name="pipeline">
        <item>streamDataSource </item>
        <item>speechClassifier </item>
        <item>speechMarker </item>
        <item>nonSpeechDataFilter </item>
        <item>premphasizer </item>
        <item>windower </item>
        <item>fft </item>
        <item>melFilterBank </item>
        <item>dct </item>
        <item>liveCMN </item>
        <item>featureExtraction </item>
    </propertylist>
</component>

<!-- ******************************************************** -->
<!-- The frontend pipelines                                   -->
<!-- ******************************************************** -->

<component name="streamDataSource"
            type="edu.cmu.sphinx.frontend.util.StreamDataSource">
    <property name="sampleRate" value="16000"/>
    <property name="bitsPerSample" value="16"/>
    <property name="bigEndianData" value="false"/>
    <property name="signedData" value="true"/>
    <property name="bytesPerRead" value="320"/>
</component>

<component name="speechClassifier" 
           type="edu.cmu.sphinx.frontend.endpoint.SpeechClassifier">
    <property name="threshold" value="13"/>
</component>

<component name="nonSpeechDataFilter" 
           type="edu.cmu.sphinx.frontend.endpoint.NonSpeechDataFilter"/>

<component name="speechMarker" 
           type="edu.cmu.sphinx.frontend.endpoint.SpeechMarker" >
    <property name="speechTrailer" value="50"/>
</component>

<component name="premphasizer" 
           type="edu.cmu.sphinx.frontend.filter.Preemphasizer"/>

<component name="windower" 
           type="edu.cmu.sphinx.frontend.window.RaisedCosineWindower">
</component>

<component name="fft" 
        type="edu.cmu.sphinx.frontend.transform.DiscreteFourierTransform">
</component>

<component name="melFilterBank" 
    type="edu.cmu.sphinx.frontend.frequencywarp.MelFrequencyFilterBank">
</component>

<component name="dct" 
        type="edu.cmu.sphinx.frontend.transform.DiscreteCosineTransform"/>

<component name="liveCMN" 
           type="edu.cmu.sphinx.frontend.feature.LiveCMN"/>

<component name="featureExtraction" 
           type="edu.cmu.sphinx.frontend.feature.DeltasFeatureExtractor"/>

<!-- ******************************************************* -->
<!--  monitors                                               -->
<!-- ******************************************************* -->

<component name="accuracyTracker" 
            type="edu.cmu.sphinx.instrumentation.AccuracyTracker">
    <property name="recognizer" value="${recognizer}"/>
    <property name="showAlignedResults" value="false"/>
    <property name="showRawResults" value="false"/>
</component>

<component name="memoryTracker" 
            type="edu.cmu.sphinx.instrumentation.MemoryTracker">
    <property name="recognizer" value="${recognizer}"/>
<property name="showSummary" value="true"/>
<property name="showDetails" value="true"/>
</component>

<component name="speedTracker" 
            type="edu.cmu.sphinx.instrumentation.SpeedTracker">
    <property name="recognizer" value="${recognizer}"/>
    <property name="frontend" value="${frontend}"/>
<property name="showSummary" value="true"/>
<property name="showDetails" value="true"/>
</component>

<!-- ******************************************************* -->
<!--  Miscellaneous components                               -->
<!-- ******************************************************* -->

<component name="logMath" type="edu.cmu.sphinx.util.LogMath">
    <property name="logBase" value="1.0001"/>
    <property name="useAddTable" value="true"/>
</component>

</config>