Homework 8: classpath and packaging in Java

Due:

Apr 10, 11:59PM

To submit:

Send an email to me at jal2016@email.vccs.edu with subject CSC 185 HW8, containing your your answers attached in a zip file.

Or, put your work in your Bitbucket repository in homework/185/hw8, and email me with subject CSC 185 HW8 when you're done.

Directions:

1. Modify the program shown below to play a different tune. This uses the JSyn library, and to compile and run you'll need to have the JSyn jar file in your classpath.

   import com.jsyn.JSyn;
   import com.jsyn.Synthesizer;
   import com.jsyn.unitgen.LineOut;
   import com.jsyn.unitgen.LinearRamp;
   import com.jsyn.unitgen.SawtoothOscillatorBL;
   import com.jsyn.unitgen.UnitOscillator;
   
   /**
    * Simple synthesizer example.
    * 
    * Based on source from
    * http://www.softsynth.com/jsyn/docs/usersguide.php#AppletTemplate
    * @author Phil Burk (C) 2010 Mobileer Inc
    * 
    */
   public class SawFaders
   {
       private Synthesizer synth;
       public UnitOscillator osc;
       private LinearRamp lag;
       private LineOut lineOut;
   
       public SawFaders()
       {
           synth = JSyn.createSynthesizer();
           
           // Add a tone generator.
           synth.add( osc = new SawtoothOscillatorBL() );
           // Add a lag to smooth out amplitude changes and avoid pops.
           synth.add( lag = new LinearRamp() );
           // Add an output mixer.
           synth.add( lineOut = new LineOut() );
           // Connect the oscillator to the output.
           osc.output.connect( 0, lineOut.input, 0 );
           
           // Set the minimum, current and maximum values for the port.
           lag.output.connect( osc.amplitude );
           lag.input.setup( 0.0, 0.5, 1.0 );
           lag.time.set(  0.2 );
       }
   
       public void start()
       {
           // 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();
       }
   
       public void stop()
       {
           synth.stop();
       }
   
       /** Play note at given frequency for given number of milliseconds.
        */
       public void playNote(double freq, long millis) throws InterruptedException {
           osc.noteOn(freq, 1.0);
           Thread.sleep(millis);
       }
   
       public static void main( String args[] ) throws InterruptedException
       {
           // Start up the synth and play some notes.
           SawFaders saw = new SawFaders();
           saw.start();
           double note = 220;
           for (int i = 0; i < 24; i++) {
               saw.playNote(note, 100);
               note *= (1 + 1/12.0);
           }
           saw.stop();
       }
   
   }
   

   SawFaders.java