marytts.unitselection.concat

Class BaseUnitConcatenator

java.lang.Object

marytts.unitselection.concat.BaseUnitConcatenator

All Implemented Interfaces:

UnitConcatenator

Direct Known Subclasses:

OverlapUnitConcatenator

public class BaseUnitConcatenator
extends Object
implements UnitConcatenator

Concatenates Units and returns an audio stream

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BaseUnitConcatenator.UnitData

Field Summary

Fields

Modifier and Type	Field and Description
protected AudioFormat	audioformat
protected UnitDatabase	database
protected org.apache.log4j.Logger	logger
protected ProsodyAnalyzer	prosodyAnalyzer
protected TimelineReader	timeline
protected double	unitToTimelineSampleRateFactor

Constructor Summary

Constructors

Constructor and Description
BaseUnitConcatenator() Empty Constructor; need to call load(UnitDatabase) separately

Method Summary

Methods

Modifier and Type	Method and Description
protected Datagram	createZeroDatagram(int length) Create a datagram appropriate for this unit concatenator which contains only zero values as samples.
protected void	determineTargetPitchmarks(List<SelectedUnit> units) Determine target pitchmarks (= duration and f0) for each unit.
protected AudioInputStream	generateAudioStream(List<SelectedUnit> units) Generate audio to match the target pitchmarks as closely as possible.
AudioInputStream	getAudio(List<SelectedUnit> units) Build the audio stream from the units
AudioFormat	getAudioFormat() Provide the audio format which will be produced by this unit concatenator.
protected void	getDatagramsFromTimeline(List<SelectedUnit> units) Get the raw audio material for each unit from the timeline.
void	load(UnitDatabase unitDatabase) Initialise the unit concatenator from the database.
protected int	unitToTimeline(int duration)
protected long	unitToTimeline(long time)

Methods inherited from class java.lang.Object

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

Field Detail

logger

protected org.apache.log4j.Logger logger

database

protected UnitDatabase database

timeline

protected TimelineReader timeline

audioformat

protected AudioFormat audioformat

unitToTimelineSampleRateFactor

protected double unitToTimelineSampleRateFactor

prosodyAnalyzer

protected ProsodyAnalyzer prosodyAnalyzer

Constructor Detail

BaseUnitConcatenator

public BaseUnitConcatenator()

Empty Constructor; need to call load(UnitDatabase) separately

See Also:

load(UnitDatabase)

Method Detail

load

public void load(UnitDatabase unitDatabase)

Description copied from interface: UnitConcatenator

Initialise the unit concatenator from the database.

Specified by:

load in interface UnitConcatenator

Parameters:

unitDatabase - database

getAudioFormat

public AudioFormat getAudioFormat()

Provide the audio format which will be produced by this unit concatenator.

Specified by:

getAudioFormat in interface UnitConcatenator

Returns:

the audio format

getAudio

public AudioInputStream getAudio(List<SelectedUnit> units)
                          throws IOException

Build the audio stream from the units

Specified by:

getAudio in interface UnitConcatenator

Parameters:

units - the units

Returns:

the resulting audio stream

Throws:

IOException - IOException

getDatagramsFromTimeline

protected void getDatagramsFromTimeline(List<SelectedUnit> units)
                                 throws IOException

Get the raw audio material for each unit from the timeline.

Parameters:

units - units

Throws:

IOException - IOException

determineTargetPitchmarks

protected void determineTargetPitchmarks(List<SelectedUnit> units)

Determine target pitchmarks (= duration and f0) for each unit.

Parameters:

units - units

generateAudioStream

protected AudioInputStream generateAudioStream(List<SelectedUnit> units)
                                        throws IOException

Generate audio to match the target pitchmarks as closely as possible.

Parameters:

units - units

Returns:

new DDSAudioInputStream(new BufferedDoubleDataSource(audioSource), audioformat)

Throws:

IOException - IOException

createZeroDatagram

protected Datagram createZeroDatagram(int length)

Create a datagram appropriate for this unit concatenator which contains only zero values as samples.

Parameters:

length - the number of zeros that the datagram should contain

Returns:

new Datagram(length, new byte[2 * length])

unitToTimeline

protected int unitToTimeline(int duration)

unitToTimeline

protected long unitToTimeline(long time)