/**
* GranularInst.java
* Author: Timothy Opie
* Last Modified: 04/08/2002
* Designed to function with jMusic
* by Andrew Brown and Andrew Sorenson
*/
import jm.audio.io.*;
import jm.audio.Instrument;
import jm.audio.synth.*;
import jm.music.data.Note;
import jm.audio.AudioObject;
import jm.audio.io.RTIn;
public final class GranularInst extends jm.audio.Instrument{
//----------------------------------------------
// Attributes
//----------------------------------------------
// the name of the sample file
private String fileName;
// How many channels is the sound file we are using
private int numOfChannels;
// the base frequency of the sample file to be read in
//private double baseFreq;
// should we play the wholeFile or just what we need for note duration
//private boolean wholeFile;
// The points to use in the construction of Envelopes
private float[] envelopeArray;
private float[] durationArray;
private float[] gpsArray;
private float[] freqArray;
private boolean premapped = false;
private boolean ri = false;
private boolean rgd = false;
private boolean rf = false;
private Granulator grain;
private Volume vol;
private StereoPan pan;
// used to define the audio input type
private int sounds;
public static final int SINE_WAVE = 0;
public static final int COSINE_WAVE = 1;
public static final int TRIANGLE_WAVE = 2;
public static final int SQUARE_WAVE = 3;
public static final int SAWTOOTH_WAVE = 4;
public static final int SAWDOWN_WAVE = 5;
public static final int SABERSAW_WAVE = 6;
public static final int MICROPHONE = 13;
//----------------------------------------------
// Constructor
//----------------------------------------------
public GranularInst(String fileName){
// Use this constructor when you want to granulate an audio file.
// Only the name of the audio file is required
this.fileName = fileName;
this.numOfChannels = 2;
this.sounds = 7;
}
public GranularInst(int sounds){
/**
* The variable sounds is an integer used to select
* which sound source type will be used.
* It will be defined as such:
* SINE WAVE = 0
* COSINE WAVE = 1
* TRIANGLE WAVE = 2
* SQUARE WAVE = 3
* SAWTOOTH WAVE = 4
* SAWDOWN WAVE = 5
* SABERSAW WAVE = 6
* AUDIO FILE = 7
* MICROPHONE = 13
*
* Use this constructor when you want to granulate internally
* produced audio. Note: you can still granulate audio files
* if you use this constructor, but it will assume the audio
* file has the name song1.au.
*/
this.sounds = sounds;
this.numOfChannels = 2;
this.fileName = "song1.au";
}
public GranularInst(int sounds, float[] durArr, float[] gpsArr, float[] freqArr){
/**
* This lets you define envelopes as control parameters for
* the Granulator.
*
* The variable sounds is an integer used to select
* which sound source type will be used.
* Like previous constructor
*
* Use this constructor when you want to granulate internally
* produced audio. Note: you can still granulate audio files
* if you use this constructor, but it will assume the audio
* file has the name song1.au.
*/
this.sounds = sounds;
this.durationArray = durArr;
this.gpsArray = gpsArr;
this.freqArray = freqArr;
this.numOfChannels = 2;
this.fileName = "song1.au";
this.premapped = true;
}
//----------------------------------------------
// Methods
//----------------------------------------------
/**
* Create the Audio Chain for this Instrument
* and assign the primary Audio Object(s). The
* primary audio object(s) are the one or more
* objects which head up the chain(s)
*/
public void createChain(){
// define the chain
if (sounds<0 || sounds>6){
if (sounds>10){
// if sounds is > 10 then the microphone is the input
// source. Default is 11, but this way it doesn't matter
// if a wrong number gets inputed
// (8820 = buffer length of 1/5 of a second)
RTIn grin = new RTIn(this,44100,2,8820);
//if (premapped) {
// grain = new Granulator(grin,durationArray,gpsArray,freqArray,ri,rgd,rf);
// } else {
grain = new Granulator(grin, 44100, 2, 50,100);
// }
vol = new Volume(grain,0.5f);
Volume vol2 = new Volume(vol,0.1f);
pan = new StereoPan(vol2);
SampleOut sout = new SampleOut(pan);
} else {
// if sounds is < 0 or > 6 and < 11 then it will
// process an audio file. Default is 7. Again it is
// very open ended to accommodate wrong input numbers.
SampleIn grin = new SampleIn(this, this.fileName);
//if (premapped) {
// grain = new Granulator(grin,durationArray,gpsArray,freqArray,ri,rgd,rf);
// } else {
grain = new Granulator(grin,44100, 2, 50,100);
//}
vol = new Volume(grain,0.5f);
Volume vol2 = new Volume(vol,0.1f);
pan = new StereoPan(vol2);
SampleOut sout = new SampleOut(pan);
}
} else {
// At this stage the only values left are between 0-6
// These correspond directly to the oscillator input
// values, so can be added directly.
Oscillator grin = new Oscillator(this, sounds, 44100,2);
//if (premapped) {
// grain = new Granulator(grin,durationArray,gpsArray,freqArray,ri,rgd,rf);
// } else {
grain = new Granulator(grin,44100, 2,50,100);
//}
vol = new Volume(grain,0.5f);
Volume vol2 = new Volume(vol,0.1f);
pan = new StereoPan(vol2);
SampleOut sout = new SampleOut(pan);
}
}
}