javax.sound.midi - arduino 和处理错误代码使用 soundbank

Question

我想做的项目就在这里。 http://ardututes.weebly.com/examples/color-piano-tcs34725

但是，处理代码中继续发生错误。

Arduino代码

#include <Wire.h>
#include "Adafruit_TCS34725.h"
#include "Flora_Pianoglove.h"
#include <SoftwareSerial.h>

// we only play a note when the clear response is higher than a certain number 
#define CLEARTHRESHHOLD 2000
#define LOWTONE 1000
#define HIGHTONE 2000
#define LOWKEY 64   // high C
#define HIGHKEY 76  // double high C

// our RGB -> eye-recognized gamma color
byte gammatable[256];

int prevNote = -1;

// color sensor
Adafruit_TCS34725 tcs = Adafruit_TCS34725(TCS34725_INTEGRATIONTIME_50MS,         
TCS34725_GAIN_4X);

void setup() {
Serial.begin(9600);

  //Check for color sensor
  if (tcs.begin()) {
    // Serial.println("Found sensor");
  } 
  else {
    Serial.println("No TCS34725 found ... check your connections");
    while (1); // halt!
  }

  for (int i=0; i<256; i++) {
    float x = i;
    x /= 255;
    x = pow(x, 2.5);
    x *= 255;

gammatable[i] = x;      
  }
}

void loop() {
  uint16_t clear, red, green, blue;

  tcs.setInterrupt(false);      // turn on LED

  delay(60);  // takes 50ms to read 

  tcs.getRawData(&red, &green, &blue, &clear);

  tcs.setInterrupt(true);  // turn off LED

  //  Serial.print("C:\t"); Serial.print(clear);
  //  Serial.print("\tR:\t"); Serial.print(red);
  //  Serial.print("\tG:\t"); Serial.print(green);
  //  Serial.print("\tB:\t"); Serial.print(blue);

  // Figure out some basic hex code for visualization
  uint32_t sum = red;
  sum += green;
  sum += blue;
  sum = clear;
  float r, g, b;
  r = red; 
  r /= sum;
  g = green; 
  g /= sum;
  b = blue; 
  b /= sum;
  r *= 256; 
 g *= 256; 
  b *= 256;
  if (r > 255) r = 255;
  if (g > 255) g = 255;
  if (b > 255) b = 255;

  //  Serial.print("\t");  // what is read on processing!!!
  //  Serial.print((int)r, HEX); Serial.print((int)g, HEX); Serial.print((int)b, HEX); 
  //  Serial.println();


  // OK we have to find the two primary colors
  // check if blue is smallest. MEME: fix for 'white'
  float remove, normalize;
  if ((b < g) && (b < r)) {
    remove = b;
    normalize = max(r-b, g-b);
  } 
  else if ((g < b) && (g < r)) {
    remove = g;
    normalize = max(r-g, b-g);
  } 
  else {
    remove = r;
    normalize = max(b-r, g-r);
  }
  // get rid of minority report
  float rednorm = r - remove;
  float greennorm = g - remove;
  float bluenorm = b - remove;
  // now normalize for the highest number
  rednorm /= normalize;
  greennorm /= normalize;
  bluenorm /= normalize;

  //  Serial.println();
  //  strip.setPixelColor(0, strip.Color(gammatable[(int)r], gammatable[(int)g], 
      gammatable[(int)b];
  //  strip.show();

  //  Serial.print(rednorm); Serial.print(", "); 
  //  Serial.print(greennorm); Serial.print(", "); 
  //  Serial.print(bluenorm); Serial.print(" "); 
  //  Serial.println();

  float rainbowtone = 0;

  if (bluenorm <= 0.1) {
    // between red and green
    if (rednorm >= 0.99) {
      // between red and yellow
      rainbowtone = 0 + 0.2 * greennorm;
    } 
    else {
      // between yellow and green
      rainbowtone = 0.2 + 0.2 * (1.0 - rednorm);
    }
  } 
  else if (rednorm <= 0.1) {
    // between green and blue
    if (greennorm >= 0.99) {
      // between green and teal
      rainbowtone = 0.4 + 0.2 * bluenorm;
    } 
    else {
      // between teal and blue
      rainbowtone = 0.6 + 0.2 * (1.0 - greennorm);
    }
  } 
  else {
    // between blue and violet
    if (bluenorm >= 0.99) {
      // between blue and violet
      rainbowtone = 0.8 + 0.2 * rednorm;
    } 
    else {
      // between teal and blue
      rainbowtone = 0; 
    }
  }

  //  Serial.print("Scalar "); Serial.println(rainbowtone);
  float keynum = LOWKEY + (HIGHKEY - LOWKEY) * rainbowtone;
  Serial.print(keynum); Serial.print(","); Serial.println();
  //  float freq = pow(2, (keynum - 49) / 12.0) * 440;
  //  Serial.print("Freq = "); Serial.println(freq);  
  Serial.print((int)r ); 
  Serial.print(" "); 
  Serial.print((int)g);
  Serial.print(" ");  
  Serial.println((int)b);
  //  playNote(keynum);
}

Arduino代码监控没有问题。但，

import javax.sound.midi.*;
import processing.serial.*;
  Serial port;

private Synthesizer synthesizer;
private MidiChannel channel;      // channel we play on -- 10 is for percussion
private Instrument[] soundbankInstruments, synthesizerInstruments;
private int velocity = 64;        // default volume is 50%
private int midiNote = -1;
private int prevNote = -1;

private int program = 25;

String currentInstrument = "nothing selected yet";
PFont font;

float x,y;

int n = 100;
float [] xdata = new float[n];

void setup() {
  size (600, 600);
  background (127);

  println(Serial.list());
  //port = new Serial(this, Serial.list()[4], 9600);
  //port.bufferUntil('\n');  // don't generate a serialEvent() unless you get a newline             
  character:

  Soundbank soundbank = null;
  File file = new File(dataPath("soundbank-deluxe.gm"));

  try {
    soundbank = MidiSystem.getSoundbank(file);
    synthesizer = MidiSystem.getSynthesizer( );
    synthesizer.open();

    channel = synthesizer.getChannels()[1];
  }
  catch (Exception e) { e.printStackTrace(); }

  soundbankInstruments = soundbank.getInstruments();
  synthesizer.loadAllInstruments(soundbank);
  synthesizerInstruments = synthesizer.getLoadedInstruments();

  // for (int i = 0; i < synthesizerInstruments.length; i++) {
  //   println(i + "  " + synthesizerInstruments[i]);
  // }

  channel.programChange(program);
  currentInstrument = synthesizerInstruments[program].toString();
}

void draw(){
  background (127);
  text(program + " " + currentInstrument, 10, height - 8);
  noStroke();
}
void serialEvent(Serial port) {
  String inString = port.readStringUntil('\n');

  if (inString != null) {
    inString = trim(inString);

    println(inString);

    try {
      String[] data = split(inString, ",");
      float x = float (data[0]);  
      xdata[0] = x;

      midiNote = int(map(x, 65, 73, 50, 80));

      if (midiNote == prevNote) return;

      if (midiNote == -1){
        channel.noteOff(prevNote);
      }

      channel.noteOff(prevNote);
      channel.noteOn(midiNote, 64);
      prevNote = midiNote;

    redraw(); 
    }
    catch (Exception e) { e.printStackTrace(); }
  }
}
void keyPressed() {
  if (keyCode == 37) {
    program--; if (program == -1) { program = 127; }
    channel.programChange(program);
    currentInstrument = synthesizerInstruments[program].toString();
  }
  else if (keyCode == 39) {
    program++; if (program == 128) { program = 0; }
    channel.programChange(program);
    currentInstrument = synthesizerInstruments[program].toString();
  }
}

此代码的第 42 行有一个错误。错误在这里

COM4
javax.sound.midi.InvalidMidiDataException: cannot get soundbank from stream
at javax.sound.midi.MidiSystem.getSoundbank(MidiSystem.java:604)
at sketch_211215a.setup(sketch_211215a.java:53)
at processing.core.PApplet.handleDraw(PApplet.java:2432)
at processing.awt.PSurfaceAWT$12.callDraw(PSurfaceAWT.java:1547)
at processing.core.PSurfaceNone$AnimationThread.run(PSurfaceNone.java:313)

请帮助我..请告诉我解决方案...