com.meapsoft.composers
Class VQComposer

java.lang.Object
  com.meapsoft.MEAPUtil
      com.meapsoft.composers.Composer
          com.meapsoft.composers.VQComposer

All Implemented Interfaces:

java.lang.Runnable

Direct Known Subclasses:

HMMComposer

public class VQComposer

extends Composer

Program that learns a vector quantizer from a FeatFile and uses it to quantize the chunks in another FeatFile. All about VQ: http://www.data-compression.com/vq.html

Field Summary

protected int	beatsPerCodeword
protected int	cbSize
protected boolean	debug
static java.lang.String	description
protected ChunkDist	dist
protected int[]	featdim
protected FeatFile	featsToQuantize
protected java.lang.String	outFileName
protected java.util.Vector	templateChunks
protected FeatFile	trainFile

Fields inherited from class com.meapsoft.MEAPUtil

bigEndian, bitsPerSamp, exceptionHandler, frameLatency, mixerToUse, numChannels, progress, samplingRate, signed, slash, stereo, verbose, version, writeMEAPFile

Constructor Summary

VQComposer(FeatFile trainFN, EDLFile outFN)

VQComposer(java.lang.String[] args)

Method Summary

EDLFile	compose() Compose an EDLFile.
protected void	learnCodebook(FeatFile trainFile) Use the LBG splitting algorithm to learn a VQ codebook
static void	main(java.lang.String[] args)
void	printUsageAndExit()
protected int	quantizeChunk(FeatChunk f)
void	setBeatsPerCodeword(int nbeats)
void	setCodebookSize(int cb)
void	setFeatsToQuantize(FeatFile featFile)
void	setup() Setup the Composer - read in files, etc.

Methods inherited from class com.meapsoft.composers.Composer

addCommand, addCommandsToAllEDLChunks, addCommandsToAllEDLChunks, addCommandToAllEDLChunks, description, doComposer, parseCommands, printCommandLineOptions, run

Methods inherited from class com.meapsoft.MEAPUtil

bytes2doubles, doubles2bytes, getPaths, getProgress, openAudioWriter, openAudioWriter, openInputStream, openInputStream, parseChunkDist, parseFeatDim, parseFeatureExtractor, parseFeatureExtractor, printCommandLineOptions, setExceptionHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

description

public static java.lang.String description

outFileName

protected java.lang.String outFileName

trainFile

protected FeatFile trainFile

featsToQuantize

protected FeatFile featsToQuantize

cbSize

protected int cbSize

templateChunks

protected java.util.Vector templateChunks

beatsPerCodeword

protected int beatsPerCodeword

dist

protected ChunkDist dist

featdim

protected int[] featdim

debug

protected boolean debug

Constructor Detail

VQComposer

public VQComposer(FeatFile trainFN,
                  EDLFile outFN)

VQComposer

public VQComposer(java.lang.String[] args)

Method Detail

printUsageAndExit

public void printUsageAndExit()

setup

public void setup()
           throws java.io.IOException,
                  ParserException

Description copied from class: Composer

Setup the Composer - read in files, etc. This should be called before any call to compose() to ensure that the inputs and outputs are properly initialized.

Overrides:

setup in class Composer

Throws:

java.io.IOException

ParserException

learnCodebook

protected void learnCodebook(FeatFile trainFile)

Use the LBG splitting algorithm to learn a VQ codebook

quantizeChunk

protected int quantizeChunk(FeatChunk f)

compose

public EDLFile compose()

Description copied from class: Composer

Compose an EDLFile. This is where the magic happens.

Specified by:

compose in class Composer

setCodebookSize

public void setCodebookSize(int cb)

setBeatsPerCodeword

public void setBeatsPerCodeword(int nbeats)

setFeatsToQuantize

public void setFeatsToQuantize(FeatFile featFile)

main

public static void main(java.lang.String[] args)