marf.FeatureExtraction.LPC
Class LPC

java.lang.Object
  marf.Storage.StorageManager
      marf.FeatureExtraction.FeatureExtraction
          marf.FeatureExtraction.LPC.LPC

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, IFeatureExtraction, IStorageManager

public class LPC
extends FeatureExtraction

Class LPC implements Linear Predictive Coding.

$Id: LPC.java,v 1.41 2006/08/04 03:31:05 mokhov Exp $

Since:

0.0.1

Version:

$Revision: 1.41 $

Author:

Ian Clement, Serguei Mokhov

See Also:

Serialized Form

Field Summary

static int	DEFAULT_POLES Default number of poles, 20.
static int	DEFAULT_WINDOW_LENGTH Default window length of 128 elements.

Fields inherited from class marf.FeatureExtraction.FeatureExtraction

adFeatures, oFeatureSet, oPreprocessing

Fields inherited from class marf.Storage.StorageManager

bDumpOnNotFound, iCurrentDumpMode, oObjectToSerialize, strFilename

Fields inherited from interface marf.FeatureExtraction.IFeatureExtraction

MARF_INTERFACE_CODE_REVISION

Fields inherited from interface marf.Storage.IStorageManager

DUMP_BINARY, DUMP_CSV_TEXT, DUMP_GZIP_BINARY, DUMP_HTML, DUMP_SQL, DUMP_XML, MARF_INTERFACE_CODE_REVISION, STORAGE_FILE_EXTENSIONS

Constructor Summary

LPC(IPreprocessing poPreprocessing)
LPC Constructor.

Method Summary

boolean	extractFeatures(double[] padSampleData) LPC Implementation of extractFeatures().
static java.lang.String	getMARFSourceCodeRevision() Returns source code revision information.
int	getPoles() Retrieves the number of poles.
int	getWindowLength() Retrieves the window length.
void	setPoles(int piPoles) Allows setting the number of poles.
void	setWindowLength(int piWindowLen) Allows setting the window length.

Methods inherited from class marf.FeatureExtraction.FeatureExtraction

backSynchronizeObject, clone, extractFeatures, getFeaturesArray, getPreprocessing, setPreprocessing

Methods inherited from class marf.Storage.StorageManager

dump, dumpBinary, dumpCSV, dumpGzipBinary, dumpHTML, dumpSQL, dumpXML, enableDumpOnNotFound, equals, getDefaultExtension, getDefaultExtension, getDumpMode, getFilename, getObjectToSerialize, hashCode, restore, restoreBinary, restoreCSV, restoreGzipBinary, restoreHTML, restoreSQL, restoreXML, setDumpMode, setFilename, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

DEFAULT_WINDOW_LENGTH

public static final int DEFAULT_WINDOW_LENGTH

Default window length of 128 elements.

Since:

0.3.0

See Also:

Constant Field Values

DEFAULT_POLES

public static final int DEFAULT_POLES

Default number of poles, 20.

Since:

0.3.0

See Also:

Constant Field Values

Constructor Detail

LPC

public LPC(IPreprocessing poPreprocessing)

LPC Constructor.

Parameters:

poPreprocessing - Preprocessing module reference

Method Detail

extractFeatures

public final boolean extractFeatures(double[] padSampleData)
                              throws FeatureExtractionException

LPC Implementation of extractFeatures(). As of 0.3.0.6 the generic pipelined extractFeatures() refactored out to FeatureExtraction.

Parameters:

padSampleData - the sample to extract features from

Returns:

true if features were extracted, false otherwise

Throws:

FeatureExtractionException - on any exception while extracting features

Since:

0.3.0.6

See Also:

IFeatureExtraction.extractFeatures(double[])

getPoles

public int getPoles()

Retrieves the number of poles.

Returns:

the number of poles

Since:

0.3.0.4

setPoles

public void setPoles(int piPoles)

Allows setting the number of poles.

Parameters:

piPoles - new number of poles

Since:

0.3.0.4

getWindowLength

public int getWindowLength()

Retrieves the window length.

Returns:

the window length

Since:

0.3.0.4

setWindowLength

public void setWindowLength(int piWindowLen)

Allows setting the window length.

Parameters:

piWindowLen - the window length to set

Since:

0.3.0.4

getMARFSourceCodeRevision

public static java.lang.String getMARFSourceCodeRevision()

Returns source code revision information.

Returns:

revision string

Since:

0.3.0.2