net.beadsproject.beads.analysis

Class AudioSegmenter

java.lang.Object

net.beadsproject.beads.core.Bead

net.beadsproject.beads.core.UGen

net.beadsproject.beads.analysis.AudioSegmenter

All Implemented Interfaces:

SegmentMaker

Direct Known Subclasses:

ShortFrameSegmenter

public abstract class AudioSegmenter
extends UGen
implements SegmentMaker

An AudioSegmenter slices incoming audio data into chunks, as implemented by subclasses, usually in their calculateBuffer method, and then notifies any FeatureExtractors or other SegmentListeners that are listening.

Author:

ollie

Nested Class Summary

Nested classes/interfaces inherited from class net.beadsproject.beads.core.UGen

UGen.OutputInitializationRegime, UGen.OutputPauseRegime

Field Summary

Fields inherited from class net.beadsproject.beads.core.UGen

bufferSize, bufIn, bufOut, context, ins, outputInitializationRegime, outputPauseRegime, outs

Constructor Summary

Constructors

Constructor and Description
AudioSegmenter(AudioContext context) Instantiates a new Segmenter.

Method Summary

Modifier and Type	Method and Description
void	addListener(FeatureExtractor<?,float[]> fe) Adds a FeatureExtractor as a responder to this Segmenter.
void	addSegmentListener(SegmentListener sl) Adds a SegmentListener as a listener to this Segmenter.
void	removeSegmentListener(SegmentListener sl) Removes a SegmentListerner as a listener to this Segmenter.
abstract void	resetTimeStamp() Reset both beginning and last time stamps to zero.
protected void	segment(TimeStamp startTime, TimeStamp endTime, float[] data) Called by instantiations of Segmenter, to indicate that a new segment has been created.
abstract void	setBeginningTimeStamp(TimeStamp ts) Set the TimeStamp of this AudioSegmenter when the AudioContext is at t=0.
abstract void	setLastTimeStamp(TimeStamp ts) Set the last TimeStamp of this AudioSegmenter.
java.lang.String	toString() Returns a String specifying the Bead's class and it's name.

Methods inherited from class net.beadsproject.beads.core.UGen

addDependent, addInput, addInput, calculateBuffer, clearDependents, clearInputConnections, containsInput, crossfadeInput, getConnectedInputs, getContext, getEnvelopes, getIns, getNumberOfConnectedUGens, getNumberOfDependents, getOutBuffer, getOuts, getTimeTakenLastUpdate, getValue, getValue, getValueDouble, getValueDouble, initializeOuts, isTimerMode, isUpdated, noInputs, pause, printInBuffers, printInputList, printOutBuffers, removeAllConnections, removeConnection, removeDependent, setOutsToPause, setTimerMode, setValue, update, zeroIns, zeroOuts

Methods inherited from class net.beadsproject.beads.core.Bead

getKillListener, getName, isDeleted, isPaused, kill, message, messageReceived, setKillListener, setName, start

Methods inherited from class java.lang.Object

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

Constructor Detail

AudioSegmenter

public AudioSegmenter(AudioContext context)

Instantiates a new Segmenter.

Parameters:

context - the AudioContext.

Method Detail

addListener

public void addListener(FeatureExtractor<?,float[]> fe)

Adds a FeatureExtractor as a responder to this Segmenter.

Parameters:

fe - the FeatureExtractor.

addSegmentListener

public void addSegmentListener(SegmentListener sl)

Adds a SegmentListener as a listener to this Segmenter.

Specified by:

addSegmentListener in interface SegmentMaker

Parameters:

sl - the SegmentListener.

removeSegmentListener

public void removeSegmentListener(SegmentListener sl)

Removes a SegmentListerner as a listener to this Segmenter.

Specified by:

removeSegmentListener in interface SegmentMaker

Parameters:

sl - the SegmentListerner.

segment

protected void segment(TimeStamp startTime,
                       TimeStamp endTime,
                       float[] data)

Called by instantiations of Segmenter, to indicate that a new segment has been created.

Parameters:

startTime - double indicating the start time of the data chunk in milliseconds.

endTime - double indicating the end time of the data chunk in milliseconds.

data - the audio data.

resetTimeStamp

public abstract void resetTimeStamp()

Reset both beginning and last time stamps to zero.

setBeginningTimeStamp

public abstract void setBeginningTimeStamp(TimeStamp ts)

Set the TimeStamp of this AudioSegmenter when the AudioContext is at t=0.

Parameters:

ts -

setLastTimeStamp

public abstract void setLastTimeStamp(TimeStamp ts)

Set the last TimeStamp of this AudioSegmenter. The next time a segment is produced, the start time of the segment will be this value. The counter is reset with this operation.

Parameters:

ts -

toString

public java.lang.String toString()

Description copied from class: Bead

Returns a String specifying the Bead's class and it's name.

Overrides:

toString in class Bead

Returns:

String describing the Bead.