diff options
Diffstat (limited to 'tests/com/jsyn/examples/UseMidiKeyboard.java')
| -rw-r--r-- | tests/com/jsyn/examples/UseMidiKeyboard.java | 127 |
1 files changed, 25 insertions, 102 deletions
diff --git a/tests/com/jsyn/examples/UseMidiKeyboard.java b/tests/com/jsyn/examples/UseMidiKeyboard.java index 196f13c..0efa039 100644 --- a/tests/com/jsyn/examples/UseMidiKeyboard.java +++ b/tests/com/jsyn/examples/UseMidiKeyboard.java @@ -4,9 +4,9 @@ * 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. @@ -26,33 +26,26 @@ import javax.sound.midi.Receiver; import com.jsyn.JSyn; import com.jsyn.Synthesizer; import com.jsyn.devices.javasound.MidiDeviceTools; -import com.jsyn.instruments.SubtractiveSynthVoice; -import com.jsyn.midi.MessageParser; -import com.jsyn.midi.MidiConstants; +import com.jsyn.instruments.DualOscillatorSynthVoice; +import com.jsyn.midi.MidiSynthesizer; import com.jsyn.unitgen.LineOut; -import com.jsyn.unitgen.PowerOfTwo; -import com.jsyn.unitgen.SineOscillator; -import com.jsyn.unitgen.UnitOscillator; -import com.jsyn.util.VoiceAllocator; -import com.softsynth.shared.time.TimeStamp; +import com.jsyn.util.MultiChannelSynthesizer; +import com.jsyn.util.VoiceDescription; /** * Connect a USB MIDI Keyboard to the internal MIDI Synthesizer using JavaSound. - * + * * @author Phil Burk (C) 2010 Mobileer Inc */ public class UseMidiKeyboard { - private static final int MAX_VOICES = 8; + private static final int NUM_CHANNELS = 16; + private static final int VOICES_PER_CHANNEL = 3; + private Synthesizer synth; - private VoiceAllocator allocator; private LineOut lineOut; - private double vibratoRate = 5.0; - private double vibratoDepth = 0.0; - - private UnitOscillator lfo; - private PowerOfTwo powerOfTwo; - private MessageParser messageParser; - private SubtractiveSynthVoice[] voices; + private MidiSynthesizer midiSynthesizer; + private VoiceDescription voiceDescription; + private MultiChannelSynthesizer multiSynth; public static void main(String[] args) { UseMidiKeyboard app = new UseMidiKeyboard(); @@ -77,15 +70,13 @@ public class UseMidiKeyboard { @Override public void send(MidiMessage message, long timeStamp) { byte[] bytes = message.getMessage(); - messageParser.parse(bytes); + midiSynthesizer.onReceive(bytes, 0, bytes.length); } } public int test() throws MidiUnavailableException, IOException, InterruptedException { setupSynth(); - messageParser = new MyParser(); - int result = 2; MidiDevice keyboard = MidiDeviceTools.findKeyboard(); Receiver receiver = new CustomReceiver(); @@ -104,95 +95,27 @@ public class UseMidiKeyboard { return result; } - class MyParser extends MessageParser { - @Override - public void controlChange(int channel, int index, int value) { - // Mod Wheel - if (index == 1) { - vibratoDepth = 0.1 * value / 128.0; - // System.out.println( "vibratoDepth = " + vibratoDepth ); - lfo.amplitude.set(vibratoDepth); - } - // 102 is the index of the first knob on my Axiom 25 - else if (index == 102) { - final double bump = 0.95; - if (value < 64) { - vibratoRate *= bump; - } else { - vibratoRate *= 1.0 / bump; - } - System.out.println("vibratoRate = " + vibratoRate); - lfo.frequency.set(vibratoRate); - } - - } - - @Override - public void noteOff(int channel, int noteNumber, int velocity) { - allocator.noteOff(noteNumber, synth.createTimeStamp()); - } - - @Override - public void noteOn(int channel, int noteNumber, int velocity) { - double frequency = convertPitchToFrequency(noteNumber); - double amplitude = velocity / (4 * 128.0); - TimeStamp timeStamp = synth.createTimeStamp(); - allocator.noteOn(noteNumber, frequency, amplitude, timeStamp); - } - - @Override - public void pitchBend(int channel, int bend) { - double fraction = (bend - MidiConstants.PITCH_BEND_CENTER) - / ((double) MidiConstants.PITCH_BEND_CENTER); - System.out.println("bend = " + bend + ", fraction = " + fraction); - } - } - - /** - * Calculate frequency in Hertz based on MIDI pitch. Middle C is 60.0. You can use fractional - * pitches so 60.5 would give you a pitch half way between C and C#. - */ - double convertPitchToFrequency(double pitch) { - final double concertA = 440.0; - return concertA * Math.pow(2.0, ((pitch - 69) * (1.0 / 12.0))); - } private void setupSynth() { synth = JSyn.createSynthesizer(); - // Add an output. - synth.add(lineOut = new LineOut()); + voiceDescription = DualOscillatorSynthVoice.getVoiceDescription(); +// voiceDescription = SubtractiveSynthVoice.getVoiceDescription(); - synth.add(powerOfTwo = new PowerOfTwo()); - synth.add(lfo = new SineOscillator()); - // Sums pitch modulation. - lfo.output.connect(powerOfTwo.input); - lfo.amplitude.set(vibratoDepth); - lfo.frequency.set(vibratoRate); - - voices = new SubtractiveSynthVoice[MAX_VOICES]; - for (int i = 0; i < MAX_VOICES; i++) { - SubtractiveSynthVoice voice = new SubtractiveSynthVoice(); - synth.add(voice); - powerOfTwo.output.connect(voice.pitchModulation); - voice.getOutput().connect(0, lineOut.input, 0); - voice.getOutput().connect(0, lineOut.input, 1); - voices[i] = voice; - } - allocator = new VoiceAllocator(voices); + multiSynth = new MultiChannelSynthesizer(); + final int startChannel = 0; + multiSynth.setup(synth, startChannel, NUM_CHANNELS, VOICES_PER_CHANNEL, voiceDescription); + midiSynthesizer = new MidiSynthesizer(multiSynth); + + // Create a LineOut for the entire synthesizer. + synth.add(lineOut = new LineOut()); + multiSynth.getOutput().connect(0,lineOut.input, 0); + multiSynth.getOutput().connect(1,lineOut.input, 1); // Start synthesizer using default stereo output at 44100 Hz. synth.start(); - // We only need to start the LineOut. It will pull data from the - // oscillator. lineOut.start(); - // Get synthesizer time in seconds. - double timeNow = synth.getCurrentTime(); - - // Advance to a near future time so we have a clean start. - double time = timeNow + 0.5; - } } |