jass.generators
Class Delay

java.lang.Object
  jass.engine.Out
      jass.engine.InOut
          jass.engine.FilterUG
              jass.generators.Delay

All Implemented Interfaces:

Sink, Source

public class Delay
extends FilterUG

Delay line. H(z) = z^_{L} y(t) = x(t-L)

Author:

Kees van den Doel (kvdoel@cs.ubc.ca)

Field Summary

protected float[]	cbuf
protected int	cbuf_head
protected int	rawDelay
protected float	srate

Fields inherited from class jass.engine.InOut

sourceContainer, sourcePassivity, srcBuffers

Fields inherited from class jass.engine.Out

buf, bufferSize, bufOld, lock

Constructor Summary

Delay(int bufferSize)
Create.

Delay(int bufferSize, float srate)
Create and initialize.

Method Summary

protected void	computeBuffer() Compute the next buffer and store in member float[] buf.
float	getRawDelay() Get raw delay.
float	getRecursiveDelay() Get recursive delay.
protected void	init() Init and allocate.
void	setRawDelay(float del) Set raw delay.
void	setRecursiveDelay(float del) Set recursive delay.

Methods inherited from class jass.engine.FilterUG

addSource

Methods inherited from class jass.engine.InOut

addSource, getBuffer, getSources, removeSource, resetTime

Methods inherited from class jass.engine.Out

clearBuffer, copyToOld, getBuffer, getBufferSize, getTime, peekAtBuffer, setBufferSize, setTime, setTimeAndNotify

Methods inherited from class java.lang.Object

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

Field Detail

srate

protected float srate

rawDelay

protected int rawDelay

cbuf

protected float[] cbuf

cbuf_head

protected int cbuf_head

Constructor Detail

Delay

public Delay(int bufferSize,
             float srate)

Create and initialize.

Parameters:

bufferSize - Buffer size used for real-time rendering.

srate - sampling rate in Hertz.

Delay

public Delay(int bufferSize)

Create. For derived classes.

Parameters:

bufferSize - Buffer size used for real-time rendering.

Method Detail

init

protected void init()

Init and allocate.

setRawDelay

public void setRawDelay(float del)

Set raw delay. This does not take the additional delay in closed loops into account. Also allocates buffers and inits the state.

Parameters:

del - delay in seconds

getRawDelay

public float getRawDelay()

Get raw delay. This does not take the additional delay in closed loops into account.

Returns:

raw delay in seconds

setRecursiveDelay

public void setRecursiveDelay(float del)
                       throws java.lang.IllegalArgumentException

Set recursive delay. This does take the additional delay in closed loops into account. Delay can not be smaller than the bufferSize. Also allocates buffers and inits the state.

Parameters:

del - delay in seconds.

Throws:

java.lang.IllegalArgumentException

getRecursiveDelay

public float getRecursiveDelay()

Get recursive delay. This does take the additional delay in closed loops into account. Delay can not be smaller than the bufferSize.

Returns:

delay in seconds.

computeBuffer

protected void computeBuffer()

Compute the next buffer and store in member float[] buf. Insert srcBuffers[0][] into queue at head and move head forward. Then copy new head into buf[]

Specified by:

computeBuffer in class Out