com.jsyn.unitgen

Class SineOscillator

java.lang.Object

com.jsyn.unitgen.UnitGenerator

com.jsyn.unitgen.UnitOscillator

com.jsyn.unitgen.SineOscillator

All Implemented Interfaces:

UnitSource, UnitVoice

Direct Known Subclasses:

SineOscillatorPhaseModulated

public class SineOscillator
extends UnitOscillator

Sine oscillator generates a frequency controlled sine wave. It is implemented using a fast Taylor expansion.

Author:

Phil Burk (C) 2009 Mobileer Inc

Field Summary

Fields inherited from class com.jsyn.unitgen.UnitOscillator

amplitude, DEFAULT_AMPLITUDE, DEFAULT_FREQUENCY, frequency, output, phase

Fields inherited from class com.jsyn.unitgen.UnitGenerator

FALSE, PORT_NAME_AMPLITUDE, PORT_NAME_CUTOFF, PORT_NAME_FREQUENCY, PORT_NAME_FREQUENCY_SCALER, PORT_NAME_INPUT, PORT_NAME_OUTPUT, PORT_NAME_PAN, PORT_NAME_PHASE, PORT_NAME_PRESSURE, PORT_NAME_TIMBRE, PORT_NAME_TIME, synthesisEngine, TRUE, VERY_SMALL_FLOAT

Constructor Summary

Constructors

Constructor and Description
SineOscillator()
SineOscillator(double freq)
SineOscillator(double freq, double amp)

Method Summary

Modifier and Type	Method and Description
static double	fastSin(double currentPhase) Calculate sine using Taylor expansion.
void	generate(int start, int limit) Perform essential synthesis function.

Methods inherited from class com.jsyn.unitgen.UnitOscillator

convertFrequencyToPhaseIncrement, getOutput, noteOff, noteOff, noteOn, noteOn, usePreset

Methods inherited from class com.jsyn.unitgen.UnitGenerator

addPort, addPort, autoStop, convertHalfLifeToMultiplier, convertTimeToRate, flattenOutputs, generate, getCircuit, getFramePeriod, getFrameRate, getId, getPortByName, getPorts, getSynthesisEngine, getSynthesizer, getTopUnit, getUnitGenerator, incrementWrapPhase, isEnabled, isStartRequired, printConnections, printConnections, printConnections, pullData, setCircuit, setEnabled, setFrameRate, setPort, setSynthesisEngine, start, start, start, stop, stop, stop

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.UnitVoice

getUnitGenerator, setPort

Constructor Detail

SineOscillator

public SineOscillator()

SineOscillator

public SineOscillator(double freq)

SineOscillator

public SineOscillator(double freq,
                      double amp)

Method Detail

generate

public void generate(int start,
                     int limit)

Description copied from class: UnitGenerator

Perform essential synthesis function.

Specified by:

generate in class UnitGenerator

Parameters:

start - offset into port buffers

limit - limit offset into port buffers for loop

fastSin

public static double fastSin(double currentPhase)

Calculate sine using Taylor expansion. Do not use values outside the range.

Parameters:

currentPhase - in the range of -1.0 to +1.0 for one cycle