com.sun.j3d.audioengines.javasound

Class JavaSoundMixer

java.lang.Object

com.sun.j3d.audioengines.AudioEngine

com.sun.j3d.audioengines.AudioEngine3D

com.sun.j3d.audioengines.AudioEngine3DL2

com.sun.j3d.audioengines.javasound.JavaSoundMixer

All Implemented Interfaces:

javax.media.j3d.AudioDevice, javax.media.j3d.AudioDevice3D, javax.media.j3d.AudioDevice3DL2

public class JavaSoundMixer
extends AudioEngine3DL2

The JavaSoundMixer Class defines an audio output device that accesses JavaSound functionality stream data.

Field Summary

Fields

Modifier and Type	Field and Description
protected float	deviceGain
protected static int	NOT_PAUSED
protected int	pause
protected static int	PAUSE_PENDING
protected static int	PAUSED
protected static int	RESUME_PENDING

Fields inherited from class com.sun.j3d.audioengines.AudioEngine3D

attribs, currentView, samples

Fields inherited from interface javax.media.j3d.AudioDevice3D

BACKGROUND_SOUND, BUFFERED_AUDIO_DATA, CONE_SOUND, POINT_SOUND, STREAMING_AUDIO_DATA

Fields inherited from interface javax.media.j3d.AudioDevice

HEADPHONES, MONO_SPEAKER, STEREO_SPEAKERS

Constructor Summary

Constructors

Constructor and Description
JavaSoundMixer(javax.media.j3d.PhysicalEnvironment physicalEnvironment)

Method Summary

Methods

Modifier and Type	Method and Description
void	clearSound(int index) Clears the fields associated with sample data for this sound.
boolean	close() Code to close the device.
int	getNumberOfChannelsUsed(int index) Get number of channels used by a particular sample on the audio device.
int	getNumberOfChannelsUsed(int index, boolean muted) Overriden method from AudioEngine3D.
long	getSampleDuration(int index) Get length of time a sample would play if allowed to play to completion.
long	getStartTime(int index) Get time this sample begun playing on the audio device.
int	getTotalChannels() Query total number of channels available for sound rendering for this audio device.
boolean	initialize() Code to initialize the device New interface to mixer/engine specific methods
void	muteSample(int index) Mute sample.
void	pause() Pauses audio device engine without closing the device and associated threads.
void	pauseSample(int index) Pause sample.
int	prepareSound(int soundType, javax.media.j3d.MediaContainer soundData) Code to load sound data into a channel of device mixer.
void	resume() Resumes audio device engine (if previously paused) without reinitializing * the device.
void	setDirection(int index, javax.vecmath.Vector3d direction) Set direction vector of sample.
void	setGain(float scaleFactor) Set overall gain control of all sounds playing on the audio device.
void	setLoop(int index, int count) Set number of times sample is looped.
void	setPosition(int index, javax.vecmath.Point3d position) Set location of sample.
void	setRateScaleFactor(int index, float rateScaleFactor) Set scale factor applied to sample playback rate for a particular sound associated with the audio device.
void	setReflectionCoefficient(float coefficient) Set reverberation surface reflection coefficient value for current aural attribute applied to all samples.
void	setReverbDelay(float reverbDelay) Set reverberation delay time for current aural attribute applied to all samples.
void	setReverbOrder(int reverbOrder) Set reverberation order for current aural attribute applied to all samples.
void	setVworldXfrm(int index, javax.media.j3d.Transform3D trans) Save a reference to the local to virtual world coordinate space Overriden method from AudioEngine3D.
int	startSample(int index) Start sample playing on audio device
int	stopSample(int index) Stop sample playing on audio device
void	unmuteSample(int index) Unmute sample.
void	unpauseSample(int index) Unpause sample.
void	updateSample(int index) Update sample.

Methods inherited from class com.sun.j3d.audioengines.AudioEngine3DL2

setDecayFilter, setDecayTime, setDensity, setDiffusion, setObstructionFilter, setObstructionGain, setOcclusionFilter, setOcclusionGain, setReflectionDelay, setReverbCoefficient

Methods inherited from class com.sun.j3d.audioengines.AudioEngine3D

getAuralParameters, getSample, getSampleList, getSampleListSize, getView, setAngularAttenuation, setDistanceFilter, setDistanceGain, setFrequencyScaleFactor, setRolloff, setSampleGain, setVelocityScaleFactor, setView

Methods inherited from class com.sun.j3d.audioengines.AudioEngine

getAngleOffsetToSpeaker, getAudioPlaybackType, getCenterEarToSpeaker, getChannelsAvailable, getChannelsUsedForSound, setAngleOffsetToSpeaker, setAudioPlaybackType, setCenterEarToSpeaker

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.media.j3d.AudioDevice3D

setAngularAttenuation, setDistanceFilter, setDistanceGain, setFrequencyScaleFactor, setRolloff, setSampleGain, setVelocityScaleFactor, setView

Methods inherited from interface javax.media.j3d.AudioDevice

getAngleOffsetToSpeaker, getAudioPlaybackType, getCenterEarToSpeaker, getChannelsAvailable, getChannelsUsedForSound, setAngleOffsetToSpeaker, setAudioPlaybackType, setCenterEarToSpeaker

Field Detail

deviceGain

protected float deviceGain

NOT_PAUSED

protected static final int NOT_PAUSED

See Also:

Constant Field Values

PAUSE_PENDING

protected static final int PAUSE_PENDING

See Also:

Constant Field Values

PAUSED

protected static final int PAUSED

See Also:

Constant Field Values

RESUME_PENDING

protected static final int RESUME_PENDING

See Also:

Constant Field Values

pause

protected int pause

Constructor Detail

JavaSoundMixer

public JavaSoundMixer(javax.media.j3d.PhysicalEnvironment physicalEnvironment)

Method Detail

getTotalChannels

public int getTotalChannels()

Query total number of channels available for sound rendering for this audio device. Overridden method from AudioEngine.

Specified by:

getTotalChannels in interface javax.media.j3d.AudioDevice

Overrides:

getTotalChannels in class AudioEngine

Returns:

number of maximum voices play simultaneously on JavaSound Mixer.

initialize

public boolean initialize()

Code to initialize the device New interface to mixer/engine specific methods

Specified by:

initialize in interface javax.media.j3d.AudioDevice

Specified by:

initialize in class AudioEngine

Returns:

flag: true is initialized sucessfully, false if error

close

public boolean close()

Code to close the device. New interface to mixer/engine specific methods

Specified by:

close in interface javax.media.j3d.AudioDevice

Specified by:

close in class AudioEngine

Returns:

flag: true is closed sucessfully, false if error

prepareSound

public int prepareSound(int soundType,
               javax.media.j3d.MediaContainer soundData)

Code to load sound data into a channel of device mixer. Load sound as one or mores sample into the Java Sound Mixer: a) as either a STREAM or CLIP based on whether cached is enabled b) positional and directional sounds use three samples per sound Overriden method from AudioEngine3D. Sound type determines if this is a Background, Point or Cone sound source and thus the JSXxxxSample object type Call JSXxxxxSample.loadSample() If no error Get the next free index in the samples list. Store a reference to JSXxxxSample object in samples list.

Specified by:

prepareSound in interface javax.media.j3d.AudioDevice3D

Overrides:

prepareSound in class AudioEngine3D

Parameters:

soundType - denotes type of sound: Background, Point or Cone

soundData - descrition of sound source data

Returns:

index to the sample in samples list.

clearSound

public void clearSound(int index)

Clears the fields associated with sample data for this sound. Overriden method from AudioEngine3D.

Specified by:

clearSound in interface javax.media.j3d.AudioDevice3D

Specified by:

clearSound in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

setVworldXfrm

public void setVworldXfrm(int index,
                 javax.media.j3d.Transform3D trans)

Save a reference to the local to virtual world coordinate space Overriden method from AudioEngine3D.

Specified by:

setVworldXfrm in interface javax.media.j3d.AudioDevice3D

Overrides:

setVworldXfrm in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

trans - is a reference to virtual world composite transform

setPosition

public void setPosition(int index,
               javax.vecmath.Point3d position)

Description copied from class: AudioEngine3D

Set location of sample.

Specified by:

setPosition in interface javax.media.j3d.AudioDevice3D

Overrides:

setPosition in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

position - point location in virtual world coordinate of sample

setDirection

public void setDirection(int index,
                javax.vecmath.Vector3d direction)

Description copied from class: AudioEngine3D

Set direction vector of sample.

Specified by:

setDirection in interface javax.media.j3d.AudioDevice3D

Overrides:

setDirection in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

direction - vector in virtual world coordinate.

setReflectionCoefficient

public void setReflectionCoefficient(float coefficient)

Description copied from class: AudioEngine3D

Set reverberation surface reflection coefficient value for current aural attribute applied to all samples.

Specified by:

setReflectionCoefficient in interface javax.media.j3d.AudioDevice3D

Overrides:

setReflectionCoefficient in class AudioEngine3D

Parameters:

coefficient - applied to amplitude of reverbation added at each iteration of reverb processing.

setReverbDelay

public void setReverbDelay(float reverbDelay)

Description copied from class: AudioEngine3D

Set reverberation delay time for current aural attribute applied to all samples.

Specified by:

setReverbDelay in interface javax.media.j3d.AudioDevice3D

Overrides:

setReverbDelay in class AudioEngine3D

Parameters:

reverbDelay - amount of time in millisecond between each iteration of reverb processing.

setReverbOrder

public void setReverbOrder(int reverbOrder)

Description copied from class: AudioEngine3D

Set reverberation order for current aural attribute applied to all samples.

Specified by:

setReverbOrder in interface javax.media.j3d.AudioDevice3D

Overrides:

setReverbOrder in class AudioEngine3D

Parameters:

reverbOrder - number of times reverb process loop is iterated.

startSample

public int startSample(int index)

Description copied from class: AudioEngine3D

Start sample playing on audio device

Specified by:

startSample in interface javax.media.j3d.AudioDevice3D

Specified by:

startSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

Returns:

status: < 0 denotes an error

stopSample

public int stopSample(int index)

Description copied from class: AudioEngine3D

Stop sample playing on audio device

Specified by:

stopSample in interface javax.media.j3d.AudioDevice3D

Specified by:

stopSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

Returns:

status: < 0 denotes an error

pauseSample

public void pauseSample(int index)

Description copied from class: AudioEngine3D

Pause sample.

Specified by:

pauseSample in interface javax.media.j3d.AudioDevice3D

Specified by:

pauseSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

unpauseSample

public void unpauseSample(int index)

Description copied from class: AudioEngine3D

Unpause sample.

Specified by:

unpauseSample in interface javax.media.j3d.AudioDevice3D

Specified by:

unpauseSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

updateSample

public void updateSample(int index)

Description copied from class: AudioEngine3D

Update sample. Implies that some parameters affecting rendering have been modified.

Specified by:

updateSample in interface javax.media.j3d.AudioDevice3D

Specified by:

updateSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

muteSample

public void muteSample(int index)

Description copied from class: AudioEngine3D

Mute sample.

Specified by:

muteSample in interface javax.media.j3d.AudioDevice3D

Specified by:

muteSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

unmuteSample

public void unmuteSample(int index)

Description copied from class: AudioEngine3D

Unmute sample.

Specified by:

unmuteSample in interface javax.media.j3d.AudioDevice3D

Specified by:

unmuteSample in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

getSampleDuration

public long getSampleDuration(int index)

Description copied from class: AudioEngine3D

Get length of time a sample would play if allowed to play to completion.

Specified by:

getSampleDuration in interface javax.media.j3d.AudioDevice3D

Overrides:

getSampleDuration in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

Returns:

length of sample in milliseconds

getNumberOfChannelsUsed

public int getNumberOfChannelsUsed(int index)

Description copied from class: AudioEngine3D

Get number of channels used by a particular sample on the audio device.

Specified by:

getNumberOfChannelsUsed in interface javax.media.j3d.AudioDevice3D

Overrides:

getNumberOfChannelsUsed in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

Returns:

number of channels currently being used by this sample.

getNumberOfChannelsUsed

public int getNumberOfChannelsUsed(int index,
                          boolean muted)

Overriden method from AudioEngine3D.

Specified by:

getNumberOfChannelsUsed in interface javax.media.j3d.AudioDevice3D

Overrides:

getNumberOfChannelsUsed in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

muted - denotes the mute state to assume while executing this query. This mute value does not have to match the current mute state of the sample.

Returns:

number of channels that would be used by this sample if it were playing.

getStartTime

public long getStartTime(int index)

Description copied from class: AudioEngine3D

Get time this sample begun playing on the audio device.

Specified by:

getStartTime in interface javax.media.j3d.AudioDevice3D

Overrides:

getStartTime in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

Returns:

system clock time sample started

setLoop

public void setLoop(int index,
           int count)

Description copied from class: AudioEngine3D

Set number of times sample is looped.

Specified by:

setLoop in interface javax.media.j3d.AudioDevice3D

Overrides:

setLoop in class AudioEngine3D

Parameters:

index - device specific reference number to device driver sample

count - number of times sample is repeated

setGain

public void setGain(float scaleFactor)

Description copied from class: AudioEngine3DL2

Set overall gain control of all sounds playing on the audio device.

Specified by:

setGain in interface javax.media.j3d.AudioDevice3DL2

Specified by:

setGain in class AudioEngine3DL2

Parameters:

scaleFactor - scale factor applied to calculated amplitudes for all sounds playing on this device

setRateScaleFactor

public void setRateScaleFactor(int index,
                      float rateScaleFactor)

Description copied from class: AudioEngine3DL2

Set scale factor applied to sample playback rate for a particular sound associated with the audio device. Changing the device sample rate affects both the pitch and speed. This scale factor is applied to ALL sound types. Changes (scales) the playback rate of a sound independent of Doppler rate changes.

Specified by:

setRateScaleFactor in interface javax.media.j3d.AudioDevice3DL2

Overrides:

setRateScaleFactor in class AudioEngine3DL2

Parameters:

index - device specific reference to device driver sample

rateScaleFactor - non-negative factor applied to calculated amplitudes for all sounds playing on this device

See Also:

Sound.setRateScaleFactor(float)

pause

public void pause()

Pauses audio device engine without closing the device and associated threads. Causes all cached sounds to be paused and all streaming sounds to be stopped.

Specified by:

pause in interface javax.media.j3d.AudioDevice3DL2

Specified by:

pause in class AudioEngine3DL2

resume

public void resume()

Resumes audio device engine (if previously paused) without reinitializing * the device. Causes all paused cached sounds to be resumed and all streaming sounds restarted.

Specified by:

resume in interface javax.media.j3d.AudioDevice3DL2

Specified by:

resume in class AudioEngine3DL2