edu.cmu.sphinx.frontend.feature
Class BatchAGC

java.lang.Object
  edu.cmu.sphinx.util.props.ConfigurableAdapter
      edu.cmu.sphinx.frontend.BaseDataProcessor
          edu.cmu.sphinx.frontend.feature.BatchAGC

All Implemented Interfaces:

DataProcessor, Configurable

public class BatchAGC
extends BaseDataProcessor

Applies automatic gain control (CMN)

Field Summary

private double	agc
private java.util.List<Data>	cepstraList

Fields inherited from class edu.cmu.sphinx.util.props.ConfigurableAdapter

logger

Constructor Summary

BatchAGC()

Method Summary

Data	getData() Returns the next Data object, which is a normalized cepstrum.
void	initialize() Initializes this BatchCMN.
void	newProperties(PropertySheet ps) This method is called when this configurable component needs to be reconfigured.
private void	normalizeList() Normalizes the list of Data.
private int	readUtterance() Reads the cepstra of the entire Utterance into the cepstraList.

Methods inherited from class edu.cmu.sphinx.frontend.BaseDataProcessor

getPredecessor, getTimer, setPredecessor

Methods inherited from class edu.cmu.sphinx.util.props.ConfigurableAdapter

getName, initLogger, toString

Methods inherited from class java.lang.Object

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

Field Detail

cepstraList

private java.util.List<Data> cepstraList

agc

private double agc

Constructor Detail

BatchAGC

public BatchAGC()

Method Detail

newProperties

public void newProperties(PropertySheet ps)
                   throws PropertyException

Description copied from interface: Configurable

This method is called when this configurable component needs to be reconfigured.

Specified by:

newProperties in interface Configurable

Overrides:

newProperties in class ConfigurableAdapter

Parameters:

ps - a property sheet holding the new data

Throws:

PropertyException - if there is a problem with the properties.

initialize

public void initialize()

Initializes this BatchCMN.

Specified by:

initialize in interface DataProcessor

Overrides:

initialize in class BaseDataProcessor

getData

public Data getData()
             throws DataProcessingException

Returns the next Data object, which is a normalized cepstrum. Signal objects are returned unmodified.

Specified by:

getData in interface DataProcessor

Specified by:

getData in class BaseDataProcessor

Returns:

the next available Data object, returns null if no Data object is available

Throws:

DataProcessingException - if there is an error processing data

readUtterance

private int readUtterance()
                   throws DataProcessingException

Reads the cepstra of the entire Utterance into the cepstraList.

Returns:

the number cepstra (with Data) read

Throws:

DataProcessingException - if an error occurred reading the Data

normalizeList

private void normalizeList()

Normalizes the list of Data.