jass.generators
Class RandPulses

java.lang.Object
  jass.engine.Out
      jass.generators.RandPulses

All Implemented Interfaces:

Source

public class RandPulses
extends Out

Output random pulses uniform in range [-1 +1]. Probability per sample is pps. Amplitude is rnd^exponent.

Author:

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

Field Summary

protected double	exponent
protected int	interval_i
protected float	pps Probability per sample of pulse
protected int	pulseInterval
protected boolean	steadyRate

Fields inherited from class jass.engine.Out

buf, bufferSize, bufOld, lock

Constructor Summary

RandPulses(int bufferSize)

Method Summary

protected void	computeBuffer() Compute the next buffer and store in member float[] buf.
void	setProbabilityDistributionExponent(float exponent) Set impulse prob.
void	setProbabilityPerSample(float pps) Set impulse probability per sample.

Methods inherited from class jass.engine.Out

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

Methods inherited from class java.lang.Object

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

Field Detail

pps

protected float pps

Probability per sample of pulse

exponent

protected double exponent

steadyRate

protected boolean steadyRate

pulseInterval

protected int pulseInterval

interval_i

protected int interval_i

Constructor Detail

RandPulses

public RandPulses(int bufferSize)

Method Detail

setProbabilityPerSample

public void setProbabilityPerSample(float pps)

Set impulse probability per sample. This will create pulse intervals which are exponentially distribted with mean interpulse time T = -1/srate ln(1-pps) ~ 1/srate*pps for small pps. So rate is srate * pps (-srate * ln(1-pps) precisely). Every 1/pps sample will have a pulse on average.

Parameters:

pps - probability per sample, or F_pulse/srate

setProbabilityDistributionExponent

public void setProbabilityDistributionExponent(float exponent)

Set impulse prob. exponent. Volume of impact is r^exponent, with r uniform on [0 1]

Parameters:

exponent - exponent of prob. distribution

computeBuffer

protected void computeBuffer()

Description copied from class: Out

Compute the next buffer and store in member float[] buf. This is the core processing method which will be implemented for each generator.

Specified by:

computeBuffer in class Out