com.jsyn.unitgen

Class RaisedCosineEnvelope

java.lang.Object

com.jsyn.unitgen.GrainCommon

com.jsyn.unitgen.RaisedCosineEnvelope

All Implemented Interfaces:

GrainEnvelope

public class RaisedCosineEnvelope
extends GrainCommon
implements GrainEnvelope

An envelope that can be used in a GrainFarm to shape the amplitude of a Grain. The envelope starts at 0.0, rises to 1.0, then returns to 0.0 following a cosine curve.

 output = 0.5 - (0.5 * cos(phase))
 

Author:

Phil Burk (C) 2011 Mobileer Inc

See Also:

GrainFarm

Field Summary

Fields

Modifier and Type	Field and Description
protected double	phase
protected double	phaseIncrement

Fields inherited from class com.jsyn.unitgen.GrainCommon

frameRate

Constructor Summary

Constructors

Constructor and Description
RaisedCosineEnvelope()

Method Summary

Modifier and Type	Method and Description
boolean	hasMoreValues() Are there any more values to be generated in the envelope?
double	next()
void	reset() Reset the envelope back to the beginning.
void	setDuration(double duration)

Methods inherited from class com.jsyn.unitgen.GrainCommon

getFrameRate, setFrameRate

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.jsyn.unitgen.GrainEnvelope

getFrameRate, setFrameRate

Field Detail

phase

protected double phase

phaseIncrement

protected double phaseIncrement

Constructor Detail

RaisedCosineEnvelope

public RaisedCosineEnvelope()

Method Detail

next

public double next()

Specified by:

next in interface GrainEnvelope

Returns:

next value of the envelope.

hasMoreValues

public boolean hasMoreValues()

Description copied from interface: GrainEnvelope

Are there any more values to be generated in the envelope?

Specified by:

hasMoreValues in interface GrainEnvelope

Returns:

true if there are more envelope values left.

reset

public void reset()

Reset the envelope back to the beginning.

Specified by:

reset in interface GrainEnvelope

Overrides:

reset in class GrainCommon

setDuration

public void setDuration(double duration)

Specified by:

setDuration in interface GrainEnvelope

Parameters:

duration - in seconds.