/*
* Copyright 2013 Carnegie Mellon University.
* Portions Copyright 2004 Sun Microsystems, Inc.
* Portions Copyright 2004 Mitsubishi Electric Research Laboratories.
* All Rights Reserved. Use is subject to license terms.
*
* See the file "license.terms" for information on usage and
* redistribution of this file, and for a DISCLAIMER OF ALL
* WARRANTIES.
*/
package edu.cmu.sphinx.api;
import java.io.IOException;
import edu.cmu.sphinx.decoder.adaptation.ClusteredDensityFileData;
import edu.cmu.sphinx.decoder.adaptation.Stats;
import edu.cmu.sphinx.decoder.adaptation.Transform;
import edu.cmu.sphinx.linguist.acoustic.tiedstate.Sphinx3Loader;
import edu.cmu.sphinx.recognizer.Recognizer;
import edu.cmu.sphinx.result.Result;
/**
* Base class for high-level speech recognizers.
*/
public class AbstractSpeechRecognizer {
protected final Context context;
protected final Recognizer recognizer;
protected ClusteredDensityFileData clusters;
protected final SpeechSourceProvider speechSourceProvider;
/**
* Constructs recognizer object using provided configuration.
*/
public AbstractSpeechRecognizer(Configuration configuration)
throws IOException
{
this(new Context(configuration));
}
protected AbstractSpeechRecognizer(Context context) throws IOException {
this.context = context;
recognizer = context.getInstance(Recognizer.class);
speechSourceProvider = new SpeechSourceProvider();
}
/**
* Returns result of the recognition.
*/
public SpeechResult getResult() {
Result result = recognizer.recognize();
return null == result ? null : new SpeechResult(result);
}
public Stats createStats(int numClasses) {
clusters = new ClusteredDensityFileData(context.getLoader(), numClasses);
return new Stats(context.getLoader(), clusters);
}
public void setTransform(Transform transform) {
if (clusters != null) {
context.getLoader().update(transform, clusters);
}
}
public void loadTransform(String path, int numClass) throws Exception {
clusters = new ClusteredDensityFileData(context.getLoader(), numClass);
Transform transform = new Transform((Sphinx3Loader)context.getLoader(), numClass);
transform.load(path);
context.getLoader().update(transform, clusters);
}
}