ddf.minim.signals

Class PulseWave

java.lang.Object

ddf.minim.signals.Oscillator

ddf.minim.signals.PulseWave

All Implemented Interfaces:

AudioSignal

public class PulseWave
extends Oscillator

A pulse wave is a square wave whose peaks and valleys are different length. The pulse width of a pulse wave is how wide the peaks.

Author:

Damien Di Fede

See Also:

Pulse Wave

Field Summary

Fields inherited from class ddf.minim.signals.Oscillator

TWO_PI

Constructor Summary

Constructors

Constructor and Description
PulseWave(float frequency, float amplitude, float sampleRate) Constructs a pulse wave with the given frequency, amplitude and sample rate.

Method Summary

Modifier and Type	Method and Description
float	getPulseWidth() Returns the current pulse width.
void	setPulseWidth(float w) Sets the pulse width of the pulse wave.
protected float	value(float step) Returns the value of the waveform at step.

Methods inherited from class ddf.minim.signals.Oscillator

amplitude, frequency, generate, generate, noPortamento, pan, period, portamento, sampleRate, setAmp, setAudioListener, setFreq, setPan, setPanNoGlide

Methods inherited from class java.lang.Object

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

Constructor Detail

PulseWave

public PulseWave(float frequency,
                 float amplitude,
                 float sampleRate)

Constructs a pulse wave with the given frequency, amplitude and sample rate.

Parameters:

frequency - the frequency of the pulse wave

amplitude - the amplitude of the pulse wave

sampleRate - the sample rate of the pulse wave

Method Detail

setPulseWidth

public void setPulseWidth(float w)

Sets the pulse width of the pulse wave.

Parameters:

w - the new pulse width, this will be constrained to [1, 30]

getPulseWidth

public float getPulseWidth()

Returns the current pulse width.

Returns:

the current pulse width

value

protected float value(float step)

Description copied from class: Oscillator

Returns the value of the waveform at step. To take advantage of all of the work that Oscillator does, you can create your own periodic waveforms by extending Oscillator and implementing this function. All of the oscillators included with Minim were created in this way.

Specified by:

value in class Oscillator

Parameters:

step - an offset from the beginning of the waveform's period

Returns:

the value of the waveform at step