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-rw-r--r--src/com/jsyn/util/MultiChannelSynthesizer.java111
1 files changed, 68 insertions, 43 deletions
diff --git a/src/com/jsyn/util/MultiChannelSynthesizer.java b/src/com/jsyn/util/MultiChannelSynthesizer.java
index c2d0e86..6db0790 100644
--- a/src/com/jsyn/util/MultiChannelSynthesizer.java
+++ b/src/com/jsyn/util/MultiChannelSynthesizer.java
@@ -22,9 +22,9 @@ import com.jsyn.midi.MidiConstants;
import com.jsyn.ports.UnitInputPort;
import com.jsyn.ports.UnitOutputPort;
import com.jsyn.unitgen.ExponentialRamp;
+import com.jsyn.unitgen.LinearRamp;
import com.jsyn.unitgen.Multiply;
import com.jsyn.unitgen.Pan;
-import com.jsyn.unitgen.LinearRamp;
import com.jsyn.unitgen.PowerOfTwo;
import com.jsyn.unitgen.SineOscillator;
import com.jsyn.unitgen.TwoInDualOut;
@@ -53,10 +53,27 @@ public class MultiChannelSynthesizer {
private TwoInDualOut outputUnit;
private ChannelContext[] channels;
- private class ChannelContext {
+ private class ChannelGroupContext {
private VoiceDescription voiceDescription;
private UnitVoice[] voices;
private VoiceAllocator allocator;
+
+ ChannelGroupContext(int numVoices, VoiceDescription voiceDescription) {
+ this.voiceDescription = voiceDescription;
+
+ voices = new UnitVoice[numVoices];
+ for (int i = 0; i < numVoices; i++) {
+ UnitVoice voice = voiceDescription.createUnitVoice();
+ UnitGenerator ugen = voice.getUnitGenerator();
+ synth.add(ugen);
+ voices[i] = voice;
+
+ }
+ allocator = new VoiceAllocator(voices);
+ }
+ }
+
+ private class ChannelContext {
private UnitOscillator lfo;
private PowerOfTwo pitchToLinear;
private LinearRamp timbreRamp;
@@ -65,12 +82,20 @@ public class MultiChannelSynthesizer {
private Multiply volumeMultiplier;
private Pan panner;
private double vibratoRate = 5.0;
- private double bendRangeOctaves = 24.0 / 12.0;
+ private double bendRangeOctaves = 2.0 / 12.0;
// private double bendRangeOctaves = 0.0 / 12.0;
private int presetIndex;
+ private ChannelGroupContext groupContext;
+ VoiceOperation voiceOperation = new VoiceOperation() {
+ @Override
+ public void operate (UnitVoice voice) {
+ voice.usePreset(presetIndex);
+ connectVoice(voice);
+ }
+ };
- void setup(int numVoices, VoiceDescription voiceDescription) {
- this.voiceDescription = voiceDescription;
+ void setup(ChannelGroupContext groupContext) {
+ this.groupContext = groupContext;
synth.add(pitchToLinear = new PowerOfTwo());
synth.add(lfo = new SineOscillator()); // TODO use a MorphingOscillator or switch
// between S&H etc.
@@ -91,60 +116,57 @@ public class MultiChannelSynthesizer {
lfo.amplitude.set(0.0);
lfo.frequency.set(vibratoRate);
- voices = new UnitVoice[numVoices];
- for (int i = 0; i < numVoices; i++) {
- UnitVoice voice = voiceDescription.createUnitVoice();
- UnitGenerator ugen = voice.getUnitGenerator();
- synth.add(ugen);
-
- // Hook up some channel controllers to standard ports on the voice.
- UnitInputPort freqMod = (UnitInputPort) ugen
- .getPortByName(UnitGenerator.PORT_NAME_FREQUENCY_SCALER);
- if (freqMod != null) {
- pitchToLinear.output.connect(freqMod);
- }
- UnitInputPort timbrePort = (UnitInputPort) ugen
- .getPortByName(UnitGenerator.PORT_NAME_TIMBRE);
- if (timbrePort != null) {
- timbreRamp.output.connect(timbrePort);
- timbreRamp.input.setup(timbrePort);
- }
- UnitInputPort pressurePort = (UnitInputPort) ugen
- .getPortByName(UnitGenerator.PORT_NAME_PRESSURE);
- if (pressurePort != null) {
- pressureRamp.output.connect(pressurePort);
- pressureRamp.input.setup(pressurePort);
- }
- voice.getOutput().connect(volumeMultiplier.inputA); // mono mix all the voices
- voices[i] = voice;
- }
-
volumeRamp.output.connect(volumeMultiplier.inputB);
volumeMultiplier.output.connect(panner.input);
panner.output.connect(0, outputUnit.inputA, 0); // Use MultiPassthrough
panner.output.connect(1, outputUnit.inputB, 0);
- allocator = new VoiceAllocator(voices);
+ }
+
+ private void connectVoice(UnitVoice voice) {
+ UnitGenerator ugen = voice.getUnitGenerator();
+ // Hook up some channel controllers to standard ports on the voice.
+ UnitInputPort freqMod = (UnitInputPort) ugen
+ .getPortByName(UnitGenerator.PORT_NAME_FREQUENCY_SCALER);
+ if (freqMod != null) {
+ freqMod.disconnectAll();
+ pitchToLinear.output.connect(freqMod);
+ }
+ UnitInputPort timbrePort = (UnitInputPort) ugen
+ .getPortByName(UnitGenerator.PORT_NAME_TIMBRE);
+ if (timbrePort != null) {
+ timbrePort.disconnectAll();
+ timbreRamp.output.connect(timbrePort);
+ timbreRamp.input.setup(timbrePort);
+ }
+ UnitInputPort pressurePort = (UnitInputPort) ugen
+ .getPortByName(UnitGenerator.PORT_NAME_PRESSURE);
+ if (pressurePort != null) {
+ pressurePort.disconnectAll();
+ pressureRamp.output.connect(pressurePort);
+ pressureRamp.input.setup(pressurePort);
+ }
+ voice.getOutput().disconnectAll();
+ voice.getOutput().connect(volumeMultiplier.inputA); // mono mix all the voices
}
void programChange(int program) {
- int programWrapped = program % voiceDescription.getPresetCount();
- String name = voiceDescription.getPresetNames()[programWrapped];
- System.out.println("Preset[" + program + "] = " + name);
+ int programWrapped = program % groupContext.voiceDescription.getPresetCount();
+ String name = groupContext.voiceDescription.getPresetNames()[programWrapped];
+ //System.out.println("Preset[" + program + "] = " + name);
presetIndex = programWrapped;
}
void noteOff(int noteNumber, int velocity) {
- allocator.noteOff(noteNumber, synth.createTimeStamp());
+ groupContext.allocator.noteOff(noteNumber, synth.createTimeStamp());
}
void noteOn(int noteNumber, int velocity) {
double frequency = AudioMath.pitchToFrequency(noteNumber);
double amplitude = velocity / (4 * 128.0);
TimeStamp timeStamp = synth.createTimeStamp();
- allocator.usePreset(presetIndex, timeStamp);
- // System.out.println("noteOn(noteNumber) -> " + frequency + " Hz");
- allocator.noteOn(noteNumber, frequency, amplitude, timeStamp);
+ //System.out.println("noteOn(noteNumber) -> " + frequency + " Hz");
+ groupContext.allocator.noteOn(noteNumber, frequency, amplitude, voiceOperation, timeStamp);
}
public void setPitchBend(double offset) {
@@ -223,8 +245,10 @@ public class MultiChannelSynthesizer {
if (outputUnit == null) {
synth.add(outputUnit = new TwoInDualOut());
}
+ ChannelGroupContext groupContext = new ChannelGroupContext(voicesPerChannel,
+ voiceDescription);
for (int i = 0; i < numChannels; i++) {
- channels[startChannel + i].setup(voicesPerChannel, voiceDescription);
+ channels[startChannel + i].setup(groupContext);
}
}
@@ -250,6 +274,7 @@ public class MultiChannelSynthesizer {
* @param offset ranges from -1.0 to +1.0
*/
public void setPitchBend(int channel, double offset) {
+ //System.out.println("setPitchBend[" + channel + "] = " + offset);
ChannelContext channelContext = channels[channel];
channelContext.setPitchBend(offset);
}
@@ -289,7 +314,7 @@ public class MultiChannelSynthesizer {
* Pan from left to right.
*
* @param channel
- * @param offset ranges from -1.0 to +1.0
+ * @param pan ranges from -1.0 to +1.0
*/
public void setPan(int channel, double pan) {
ChannelContext channelContext = channels[channel];
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-28 15:43:11 +0000