package rice2604hw;

import com.softsynth.jsyn.*;

/**     FM Synthcircuit
        @author Andrew Gram 3/99
        reusable FM pair
*/

public class FMCircuit extends SynthCircuit {

// declare units

        SineOscillator modOsc;
        SineOscillator carOsc;
        AddUnit adder;
        public SynthInput modfrequency;
        public SynthInput modamplitude;
        public SynthInput carfrequency;
        public SynthInput caramplitude;

        public SynthOutput output;

// make constructor

        public FMCircuit() throws SynthException
        {       super();

// add SynthUnits to circuits

                add(modOsc = new SineOscillator());
                add(carOsc = new SineOscillator());
                add(adder = new AddUnit());

// start connecting

                modOsc.output.connect(adder.inputB);
                adder.output.connect(carOsc.frequency);

// add ports visible to other classes

                addPort(modfrequency = modOsc.frequency, "Mod Frequency");
                addPort(modamplitude = modOsc.amplitude, "Mod Amplitude");
                addPort(carfrequency = adder.inputA, "Carrier Frequency");
                addPort(caramplitude = carOsc.amplitude, "Carrier Amplitude");
                addPort(output = carOsc.output, "Output");

// initialize ports

                modfrequency.setSignalType(Synth.SIGNAL_TYPE_OSC_FREQ);
                carfrequency.setSignalType(Synth.SIGNAL_TYPE_OSC_FREQ);
                modamplitude.setSignalType(Synth.SIGNAL_TYPE_OSC_FREQ);
             }


}