com.dixshtix.soundlab
Class SimpleSynth

java.lang.Object
  |
  +--com.dixshtix.soundlab.Generator
        |
        +--com.dixshtix.soundlab.SimpleSynth

All Implemented Interfaces:

java.io.Serializable

public class SimpleSynth

extends Generator

implements java.io.Serializable

Square-envelope tone generator with periodic waveform for Interactive Multitimbral Sound Lab.

Description: An extensible framework for the synthesis and playback of polyphonic, multitimbral sound clips.

Copyright: Copyright (c) Richard C. Penner II

Company: DixShtix

Version:

$Revision: 1.3 $

Author:

Richard C. Penner II

See Also:

Serialized Form

Field Summary

protected double	amplitude Relative amplitude.
protected double	duration_in_seconds Actual duration may be longer for non-square envelopes.
protected double	frequency_in_hertz Note value.
private static int	TABLE_LENGTH Default sampling rate for creation of a lookup table.
protected byte	waveform_bits Interpreted as a bitmask.
(package private) static byte	WAVEFORM_PERIODIC_NOISE Encoded bitmask for periodic, uniformly distributed noise waveform.
(package private) static byte	WAVEFORM_REVERSE_SAWTOOTH Encoded bitmask for reverse sawtooth waveform.
(package private) static byte	WAVEFORM_REVERSE_SQUARE Encoded bitmask for reverse square waveform.
(package private) static byte	WAVEFORM_REVERSE_TRIANGLE Encoded bitmask for reverse triangle waveform.
(package private) static byte	WAVEFORM_SAWTOOTH Encoded bitmask for sawtooth (based on sines) waveform.
(package private) static byte	WAVEFORM_SINE Encoded bitmask for pure sine waveform.
(package private) static byte	WAVEFORM_SQUARE Encoded bitmask for square (based on sines) waveform.
(package private) static byte	WAVEFORM_TRIANGLE Encoded bitmask for triangle (based on sines) waveform.

Constructor Summary

SimpleSynth()
Constructor with Bean semantics.

Method Summary

double[]	generate(double sampleRate) Create a lookup table.
double	getAmplitude() Amplitude is normalized to 1.0 = 0 dB.
double	getDuration() Duration is the time between Note on and Note off events.
double	getFrequency() Hertz (cycles per second) is between 16 and 32,000.
double[]	getLookupTable(int samplesPerPeriod) Create a lookup table.
byte	getWaveform() Waveform is an encoded byte of information.
void	setAmplitude(double scale) Amplitude is normalized to 1.0 = 0 dB.
void	setDuration(double seconds) Duration is the time between Note on and Note off events.
void	setFrequency(double hertz) Hertz (cycles per second) is between 16 and 32,000.
void	setWaveform(byte type) Waveform is an encoded byte of information.
java.lang.String	toString() Convert object to printable representation.

Methods inherited from class java.lang.Object

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

Field Detail

frequency_in_hertz

protected double frequency_in_hertz

Note value.

duration_in_seconds

protected double duration_in_seconds

Actual duration may be longer for non-square envelopes.

amplitude

protected double amplitude

Relative amplitude. 1.0 = 0 dB.

waveform_bits

protected byte waveform_bits

Interpreted as a bitmask.

TABLE_LENGTH

private static final int TABLE_LENGTH

Default sampling rate for creation of a lookup table.

WAVEFORM_SINE

static final byte WAVEFORM_SINE

Encoded bitmask for pure sine waveform.

WAVEFORM_SQUARE

static final byte WAVEFORM_SQUARE

Encoded bitmask for square (based on sines) waveform.

WAVEFORM_TRIANGLE

static final byte WAVEFORM_TRIANGLE

Encoded bitmask for triangle (based on sines) waveform.

WAVEFORM_SAWTOOTH

static final byte WAVEFORM_SAWTOOTH

Encoded bitmask for sawtooth (based on sines) waveform.

WAVEFORM_PERIODIC_NOISE

static final byte WAVEFORM_PERIODIC_NOISE

Encoded bitmask for periodic, uniformly distributed noise waveform.

WAVEFORM_REVERSE_SQUARE

static final byte WAVEFORM_REVERSE_SQUARE

Encoded bitmask for reverse square waveform.

WAVEFORM_REVERSE_TRIANGLE

static final byte WAVEFORM_REVERSE_TRIANGLE

Encoded bitmask for reverse triangle waveform.

WAVEFORM_REVERSE_SAWTOOTH

static final byte WAVEFORM_REVERSE_SAWTOOTH

Encoded bitmask for reverse sawtooth waveform.

Constructor Detail

SimpleSynth

public SimpleSynth()

Constructor with Bean semantics.

Method Detail

toString

public java.lang.String toString()

Convert object to printable representation.

Overrides:

toString in class Generator

getLookupTable

public double[] getLookupTable(int samplesPerPeriod)

Create a lookup table. Sample rate is between 2048 and 65536.

Overrides:

getLookupTable in class Generator

generate

public double[] generate(double sampleRate)

Create a lookup table. Sample rate is between 2048 and 65536.

Overrides:

generate in class Generator

setFrequency

public void setFrequency(double hertz)

Hertz (cycles per second) is between 16 and 32,000.

getFrequency

public double getFrequency()

Hertz (cycles per second) is between 16 and 32,000.

setWaveform

public void setWaveform(byte type)

Waveform is an encoded byte of information.

getWaveform

public byte getWaveform()

Waveform is an encoded byte of information.

setDuration

public void setDuration(double seconds)

Duration is the time between Note on and Note off events.

getDuration

public double getDuration()

Duration is the time between Note on and Note off events.

setAmplitude

public void setAmplitude(double scale)

Amplitude is normalized to 1.0 = 0 dB.

getAmplitude

public double getAmplitude()

Amplitude is normalized to 1.0 = 0 dB.