edu.cmu.sphinx.frontend

Interface DataProcessor

All Superinterfaces:

Configurable

All Known Implementing Classes:

AbstractFeatureExtractor, AbstractVoiceActivityDetector, AudioContinuityTester, AudioFileDataSource, AutoCepstrum, BaseDataProcessor, BatchAGC, BatchCMN, BatchVarNorm, ConcatAudioFileDataSource, ConcatFeatureExtractor, ConcatFileDataSource, DataBlocker, DataBufferProcessor, DataConverter, DataDumper, DeltasFeatureExtractor, Denoise, DiscreteCosineTransform, DiscreteCosineTransform2, DiscreteFourierTransform, Dither, EnergyFilter, FeatureTransform, FrameDecoder, FrameDropper, FrontEnd, FrontEndSplitter, GainControlProcessor, KaldiDeltasFeatureExtractor, KaldiDiscreteCosineTransform, Lifter, LiveCMN, MelFrequencyFilterBank, MelFrequencyFilterBank2, Microphone, PLPCepstrumProducer, PLPFrequencyFilterBank, Preemphasizer, RaisedCosineWindower, S3FeatureExtractor, SpeechClassifier, SpeechMarker, StreamCepstrumSource, StreamDataSource, StreamHTKCepstrum, VUMeterMonitor, WavWriter

public interface DataProcessor
extends Configurable

A processor that performs a signal processing function. Since a DataProcessor usually belongs to a particular front end pipeline, you can name the pipeline it belongs to in the initialize method. (Note, however, that it is not always the case that a DataProcessor belongs to a particular pipeline. For example, the Microphoneclass is a DataProcessor, but it usually does not belong to any particular pipeline.

Each DataProcessor usually have a predecessor as well. This is the previous DataProcessor in the pipeline. Again, not all DataProcessors have predecessors.

Calling getDatawill return the processed Data object.

Method Summary

Modifier and Type	Method and Description
Data	getData() Returns the processed Data output.
DataProcessor	getPredecessor() Returns the predecessor DataProcessor.
void	initialize() Initializes this DataProcessor.
void	setPredecessor(DataProcessor predecessor) Sets the predecessor DataProcessor.

Methods inherited from interface edu.cmu.sphinx.util.props.Configurable

newProperties

Method Detail

initialize

void initialize()

Initializes this DataProcessor. This is typically called after the DataProcessor has been configured.

getData

Data getData()
      throws DataProcessingException

Returns the processed Data output.

Returns:

an Data object that has been processed by this DataProcessor

Throws:

DataProcessingException - if a data processor error occurs

getPredecessor

DataProcessor getPredecessor()

Returns the predecessor DataProcessor.

Returns:

the predecessor

setPredecessor

void setPredecessor(DataProcessor predecessor)

Sets the predecessor DataProcessor. This method allows dynamic reconfiguration of the front end.

Parameters:

predecessor - the new predecessor of this DataProcessor