public void logInfo() {
logger.info("Sphinx3Loader");
meansPool.logInfo(logger);
variancePool.logInfo(logger);
matrixPool.logInfo(logger);
senonePool.logInfo(logger);
meanTransformationMatrixPool.logInfo(logger);
meanTransformationVectorPool.logInfo(logger);
varianceTransformationMatrixPool.logInfo(logger);
varianceTransformationVectorPool.logInfo(logger);
mixtureWeightsPool.logInfo(logger);
senonePool.logInfo(logger);
logger.info("Context Independent Unit Entries: " + contextIndependentUnits.size());
hmmManager.logInfo(logger);
}
/**
* Loads the phone list, which possibly contains the sizes (number of states) of models.
*
* @param ps
* @param useCDUnits if true, uses context dependent units
* @param inputStream the open input stream to use
* @param path the path to a density file @throws FileNotFoundException if a file cannot be found
* @throws IOException if an error occurs while loading the data
*/
private void loadPhoneList(
PropertySheet ps, boolean useCDUnits, InputStream inputStream, String path)
throws IOException {
int numState = 0;
// TODO: this should be flexible, but we're hardwiring for now
int numStreams = 1;
// Since we're initializing, we start simple.
int numGaussiansPerState = 1;
ExtendedStreamTokenizer est = new ExtendedStreamTokenizer(inputStream, '#', false);
// Initialize the pools we'll need.
meansPool = new Pool<float[]>("means");
variancePool = new Pool<float[]>("variances");
mixtureWeightsPool = new Pool<float[]>("mixtureweights");
matrixPool = new Pool<float[][]>("transitionmatrices");
senonePool = new Pool<Senone>("senones");
float distFloor = ps.getFloat(PROP_MC_FLOOR);
float mixtureWeightFloor = ps.getFloat(PROP_MW_FLOOR);
float transitionProbabilityFloor = 0;
float varianceFloor = ps.getFloat(PROP_VARIANCE_FLOOR);
logger.info("Loading phone list file from: ");
logger.info(path);
// At this point, we only accept version 0.1
String version = "0.1";
est.expectString("version");
est.expectString(version);
est.expectString("same_sized_models");
boolean sameSizedModels = est.getString().equals("yes");
if (sameSizedModels) {
est.expectString("n_state");
numState = est.getInt("numBase");
}
// for this phone list version, let's assume left-to-right
// models, with optional state skip.
est.expectString("tmat_skip");
boolean tmatSkip = est.getString().equals("yes");
// Load the phones with sizes
// stateIndex contains the absolute state index, that is, a
// unique index in the senone pool.
for (int stateIndex = 0, unitCount = 0; ; ) {
String phone = est.getString();
if (est.isEOF()) {
break;
}
int size = numState;
if (!sameSizedModels) {
size = est.getInt("ModelSize");
}
phoneList.put(phone, size);
logger.fine("Phone: " + phone + " size: " + size);
int[] stid = new int[size];
String position = "-";
for (int j = 0; j < size; j++, stateIndex++) {
stid[j] = stateIndex;
}
Unit unit = unitManager.getUnit(phone, phone.equals(SILENCE_CIPHONE));
contextIndependentUnits.put(unit.getName(), unit);
if (logger.isLoggable(Level.FINE)) {
logger.fine("Loaded " + unit + " with " + size + " states");
}
// Means
addModelToDensityPool(meansPool, stid, numStreams, numGaussiansPerState);
// Variances
addModelToDensityPool(variancePool, stid, numStreams, numGaussiansPerState);
// Mixture weights
addModelToMixtureWeightPool(
mixtureWeightsPool, stid, numStreams, numGaussiansPerState, mixtureWeightFloor);
// Transition matrix
addModelToTransitionMatrixPool(
matrixPool, unitCount, stid.length, transitionProbabilityFloor, tmatSkip);
// After creating all pools, we create the senone pool.
addModelToSenonePool(senonePool, stid, distFloor, varianceFloor);
// With the senone pool in place, we go through all units, and
// create the HMMs.
// Create tmat
float[][] transitionMatrix = matrixPool.get(unitCount);
SenoneSequence ss = getSenoneSequence(stid);
HMM hmm = new SenoneHMM(unit, ss, transitionMatrix, HMMPosition.lookup(position));
hmmManager.put(hmm);
unitCount++;
}
// If we want to use this code to load sizes/create models for
// CD units, we need to find another way of establishing the
// number of CI models, instead of just reading until the end
// of file.
est.close();
}