diff options
Diffstat (limited to 'tests/com/jsyn/examples/ChebyshevSong.java')
| -rw-r--r-- | tests/com/jsyn/examples/ChebyshevSong.java | 181 |
1 files changed, 0 insertions, 181 deletions
diff --git a/tests/com/jsyn/examples/ChebyshevSong.java b/tests/com/jsyn/examples/ChebyshevSong.java deleted file mode 100644 index fffd4bb..0000000 --- a/tests/com/jsyn/examples/ChebyshevSong.java +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Copyright 2010 Phil Burk, Mobileer Inc - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.jsyn.examples; - -import java.awt.BorderLayout; - -import javax.swing.JApplet; - -import com.jsyn.JSyn; -import com.jsyn.Synthesizer; -import com.jsyn.instruments.WaveShapingVoice; -import com.jsyn.scope.AudioScope; -import com.jsyn.swing.JAppletFrame; -import com.jsyn.unitgen.Add; -import com.jsyn.unitgen.LineOut; -import com.jsyn.util.PseudoRandom; -import com.jsyn.util.VoiceAllocator; -import com.softsynth.math.AudioMath; -import com.softsynth.shared.time.TimeStamp; - -/*************************************************************** - * Play notes using a WaveShapingVoice. Allocate the notes using a VoiceAllocator. - * - * @author Phil Burk (C) 2010 Mobileer Inc - */ -public class ChebyshevSong extends JApplet implements Runnable { - private static final long serialVersionUID = -7459137388629333223L; - private Synthesizer synth; - private Add mixer; - private LineOut lineOut; - private AudioScope scope; - private volatile boolean go = false; - private PseudoRandom pseudo = new PseudoRandom(); - private final static int MAX_VOICES = 8; - private final static int MAX_NOTES = 5; - private VoiceAllocator allocator; - private final static int scale[] = { - 0, 2, 4, 7, 9 - }; // pentatonic scale - - /* Can be run as either an application or as an applet. */ - public static void main(String args[]) { - ChebyshevSong applet = new ChebyshevSong(); - JAppletFrame frame = new JAppletFrame("ChebyshevSong", applet); - frame.setSize(640, 300); - frame.setVisible(true); - frame.test(); - } - - /* - * Setup synthesis. - */ - @Override - public void start() { - setLayout(new BorderLayout()); - - synth = JSyn.createSynthesizer(); - - // Use a submix so we can show it on the scope. - synth.add(mixer = new Add()); - synth.add(lineOut = new LineOut()); - - mixer.output.connect(0, lineOut.input, 0); - mixer.output.connect(0, lineOut.input, 1); - - WaveShapingVoice[] voices = new WaveShapingVoice[MAX_VOICES]; - for (int i = 0; i < MAX_VOICES; i++) { - WaveShapingVoice voice = new WaveShapingVoice(); - synth.add(voice); - voice.usePreset(0); - voice.getOutput().connect(mixer.inputA); - voices[i] = voice; - } - allocator = new VoiceAllocator(voices); - - // Start synthesizer using default stereo output at 44100 Hz. - synth.start(); - lineOut.start(); - - // Use a scope to show the mixed output. - scope = new AudioScope(synth); - scope.addProbe(mixer.output); - scope.setTriggerMode(AudioScope.TriggerMode.NORMAL); - scope.getView().setControlsVisible(false); - add(BorderLayout.CENTER, scope.getView()); - scope.start(); - - /* Synchronize Java display. */ - getParent().validate(); - getToolkit().sync(); - - // start thread that plays notes - Thread thread = new Thread(this); - go = true; - thread.start(); - - } - - @Override - public void stop() { - // tell song thread to finish - go = false; - removeAll(); - synth.stop(); - } - - double indexToFrequency(int index) { - int octave = index / scale.length; - int temp = index % scale.length; - int pitch = scale[temp] + (12 * octave); - return AudioMath.pitchToFrequency(pitch + 16); - } - - private void noteOff(double time, int noteNumber) { - allocator.noteOff(noteNumber, new TimeStamp(time)); - } - - private void noteOn(double time, int noteNumber) { - double frequency = indexToFrequency(noteNumber); - double amplitude = 0.1; - TimeStamp timeStamp = new TimeStamp(time); - allocator.noteOn(noteNumber, frequency, amplitude, timeStamp); - allocator.setPort(noteNumber, "Range", 0.7, synth.createTimeStamp()); - } - - @Override - public void run() { - // always choose a new song based on time&date - int savedSeed = (int) System.currentTimeMillis(); - // calculate tempo - double duration = 0.2; - // set time ahead of any system latency - double advanceTime = 0.5; - // time for next note to start - double nextTime = synth.getCurrentTime() + advanceTime; - // note is ON for half the duration - double onTime = duration / 2; - int beatIndex = 0; - try { - do { - // on every measure, maybe repeat previous pattern - if ((beatIndex & 7) == 0) { - if ((Math.random() < (1.0 / 2.0))) - pseudo.setSeed(savedSeed); - else if ((Math.random() < (1.0 / 2.0))) - savedSeed = pseudo.getSeed(); - } - - // Play a bunch of random notes in the scale. - int numNotes = pseudo.choose(MAX_NOTES); - for (int i = 0; i < numNotes; i++) { - int noteNumber = pseudo.choose(30); - noteOn(nextTime, noteNumber); - noteOff(nextTime + onTime, noteNumber); - } - - nextTime += duration; - beatIndex += 1; - - // wake up before we need to play note to cover system latency - synth.sleepUntil(nextTime - advanceTime); - } while (go); - } catch (InterruptedException e) { - System.err.println("Song exiting. " + e); - } - } -} |